JPH10100117A - Production of concrete secondary product and production and execution controlled in quality of fresh concrete - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the adjustment of a usable time, the enhancement of quality, the enhancement of productivity and the cost reduction, by the effective utilization of industrial waste in the production of a concrete secondary product, and to record various production data of the production of the secondary product in a factory or fresh concrete used on the building site to accurately perform quality control in production and execution. SOLUTION: Fresh concrete is supplied to a fresh concrete charging apparatus 2 fitted with secondary kneading function and concrete function reinforcing materials 11 such as coal ash, incineration ash, a lithic fine powder, silica fume and the like are processed into a slurry state to be supplied to a fresh concrete charging apparatus fitted with secondary kneading function to knead fresh concrete and, while filling energy is applied by a shaking type low noise molding apparatus 6, fresh concrete is charged in a molding form 7 to be molded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a method for producing secondary concrete products of various shapes such as small, medium and large, and various kinds of production of fresh concrete used in a secondary product manufacturing plant or construction site. The present invention relates to a manufacturing and construction method in which data is recorded in a timely manner and quality is properly controlled.

[0002]

2. Description of the Related Art Conventionally, in the production of concrete secondary products intended to achieve early strength, high strength cement or ultra-high strength cement is conventionally used as a hydraulic binder of concrete, and calcium chloride or concrete is used as an auxiliary material of the binder. A hardening accelerator is added, the composition and the fine and coarse aggregate are selected and controlled according to the hardening accelerator, and high-pressure curing, high-temperature curing, and heat curing with ordinary steam are appropriately selected and combined. As a result, the turnover time of the formwork can be significantly improved by shortening the curing time, and the effect of shortening the delivery time can be expected.However, there are various difficulties in increasing the cost of materials and in the quality record in the management and manufacturing process of fresh concrete. there were.

[0003] Control of sensitive reaction by the temperature, the temperature of the outside temperature, the temperature of the aggregate, etc., depending on the appropriate combination and addition method of the concrete hardening accelerator, retarder, and fluidizer, which have the effect of reducing the material cost. Has, to some extent, been possible. As described above, concrete hardening accelerators of various components are used in order to improve productivity. Conventionally, concrete hardening accelerators include binders such as hydraulic cement, fine aggregate, coarse aggregate, water, etc. It was added simultaneously when kneading to prepare fresh concrete. However, the concrete hardening accelerator tends to react sensitively to the above-mentioned conditions, and in order to control this reaction, it was indispensable to use a large amount of a retarder, a fluidizing agent, or the like. For this reason, there is a disadvantage that the cost increases due to an increase in the use amount of the retarder, the fluidizing agent, and the like, and the usable time is limited.

[0004] The principle feature of a concrete secondary product manufacturing plant is that the mixing of fresh concrete, that is, the distance from production to transportation and temporary storage (stock) or charging and filling into a concrete secondary product molding form. , Waiting time in the form of the molding form, large / medium / small shapes / dimensions / structure of the molding form, the features of the charging / filling method, vibration method, ie, charging energy application method, charging The filling and filling time is greatly affected by the type of machine and the workability (slump) of fresh concrete, and the workability (slump) changes accordingly, and the filling and filling in a uniform state or quality is under certain conditions. Comes limited below.

[0005] capacity per batch of fresh concrete to be manufactured, for example, a 0.5m ³ ~1.5m ^3, in the conventional plant has a plurality of molding line,
Therefore, there are many cases where one batch of fresh concrete is divided and supplied to multiple molding lines.
In addition, even with a single molding line, it takes several minutes to tens of minutes depending on the transport distance, the outside air temperature, the waiting time for temporary storage (stock), and the charging and filling time, and it is very difficult to digest fresh concrete. There is no present. Therefore, the workability (slump) of fresh concrete changes due to the passage of time and the outside air temperature, and the charging and filling time has been adjusted depending on the adjustment. In such a situation, scientific and quantitative control in the process and collection of records were not possible at the present.

[0006] When the produced fresh concrete is used under the condition that there is no change in time and temperature and is supplied to a predetermined place or position, the fluctuation in quality can be reduced to an acceptable value. The temperature of the material, that is, coarse aggregate, fine aggregate, cement, water used, etc., fluctuates greatly depending on the season, the outside air temperature, the stock situation, and the like. Japanese Industrial Standards (JIS), International Standards Organization standards (ISO 9
000 series), it is essential in JIS to perform management every time fresh concrete is manufactured, that is, to perform batch management. However, in reality, it is natural for fresh concrete manufactured by batch management that the above-mentioned outside air temperature, material temperature, transport time, storage time, and input method change every time. It was considered that there was no problem under the conditions. There is no problem with the document rules and quality records that are the basics of process management required by the ISO9000 series, but it is thought that technical records and management of quality records, especially production records, cannot be technically and costly at this time. ing.

[0007] In addition, not only fresh concrete for developing ultra-early strength of the secondary product, but also in the conventional manufacturing method, when filling the fresh concrete into a mold,
Vibrating table type filling method, vibrating machine frame mounting type filling method,
Vibration was applied by a method such as an internal vibration type filling method. Here, the vibrating table type filling method is a method in which a molding form is fixed to a table to which a vibrator is attached, and the table is vibrated at a low frequency to vibrate the molding form and fresh concrete. The vibrator form mounting type filling method is a method in which a vibrator is directly attached to a molding form to apply high frequency vibration or low frequency vibration. Further, the internal vibration type filling method is a method in which a rod vibrator is inserted into fresh concrete filled in a molding form to apply vibration.

However, in these vibration filling systems, noise and vibration pollution occur (usually 110 dB to 120 dB or more) because low and high frequency vibrators are used when fresh concrete is filled into a mold. For this reason, not only workers but also residents near the factory are adversely affected.

[0009] Therefore, unlike other manufacturing industries, it is impossible to take a two-shift or three-shift production system to meet the delivery date, and it is a general management to have a product inventory of three months or more at all times. It is a form and it is the present condition that it gives up as fate. Another problem is the property of concrete, that is, the time required for hardening. Normally, even after the fresh concrete is filled into a molding form and accelerated curing is performed by steam or the like, the pre-heating time is 2 hours to 3 hours.
Time and heating time are 2 to 6 hours, slow cooling time is 1 to 2 hours, and after demolding, natural curing requires 7 to 14 days or more. At present, it is impossible to escape from pre-modern management.

[0010] As described above, in a device where noise and vibration are intense,
Due to noise and vibration restrictions, a large number of vibrators cannot be used, resulting in very poor production efficiency. Furthermore, devices and members such as molds are also severely damaged and worn.

[0011] In addition, as a process before filling the fresh concrete into the molding form, the mold release, demolding, cleaning,
There are release agent application, wiping, rebar incorporation, mold assembly, and the like. The time required for these pre-processes is usually 10 to 60 seconds or more for a small product, and several minutes to several tens of minutes for a medium or large product. After that, the mold is filled with fresh concrete while applying vibration. However, due to the basic characteristics of fresh concrete, at least the type of compact mold is required for the filling process.
60 to 120 seconds per trolley, 12 for medium products
0 to 300 seconds, 180 to 6 for large products
Since the time required is more than 00 seconds, no matter how much the time required for the previous process is reduced, it takes several times the time required for the filling stage. As a result, improvement in productivity is hindered.

Recently, self-filling concrete with high fluidity that does not require vibration has been partially implemented, but various restrictions, that is, material costs and management costs due to strict selection and limitation of materials, have increased. In addition, there is a problem in management of workability (slump), that is, an increase in equipment cost and labor cost for stable and uniform management, and a problem of long charging and filling time. Also, the curing time, that is, the curing time, needs to be 1.5 to 4 times that of ordinary concrete.

Therefore, the productivity per day is low and a large number of molds is required, so that the mold cost is increased. Therefore, a large work space is required. Since the strength is slowly developed, the curing space, formwork and inventory increase. In addition, special techniques and management are required for product appearance and surface finish. According to these methods, manufacturing records in the manufacturing process required for product assurance, temperature of fresh concrete immediately before being put into each formwork, workability (slump), magnitude of filling energy given to fresh concrete, and application. It has been extremely difficult to quantitatively or scientifically manage the time and curing condition. Even factory production, which is said to be well managed, had the above problems. Efforts have been made to quantitatively manage fresh concrete at construction sites, but this is largely dependent on the capabilities of the staff in charge. In other words, fresh concrete is manufactured in factories, supplied to trucks with agitators, transported to the site where it is needed and used, but uneven transport time,
At present, the quality fluctuates greatly depending on conditions such as the outside air temperature and the waiting time at the site, and it is difficult to control and control the quality.
It is a fact that quality control based on continuous measurement and control of fresh concrete immediately before casting and quality control based on time-series records is not performed. It is a difficult situation.
In addition, in order to correct the change in workability (slump) of fresh concrete caused by the length of transportation time and waiting time at the construction site, post-addition of a chemical admixture for concrete or addition of water to trucks with agitators. 10
There is a major problem that needs to be solved for the environment in order to emit noise of 0 dB or more.

Recently, in the production of concrete for high strength and high durability, when an ultrafine particle admixture such as blast furnace slag fine powder or silica fume is used, or when a chemical admixture for concrete is used in combination, In order to fully exploit the inherent performance of materials,
It has been pointed out that it is necessary to reconsider the method of mixing (Concrete Engineering ''
95/3 "Vol.33, No.3, ISSN 0387-1061, page 16).

[0015]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to control the reaction of a concrete hardening accelerator by devising a method of mixing or combining coal ash or the like to adjust the pot life, improve the quality, An object of the present invention is to provide a method for manufacturing a secondary concrete product capable of improving productivity and reducing costs by effectively utilizing industrial waste.
Further, an object of the present invention is a method and an apparatus for manufacturing a secondary product that reduces noise and vibration generated by filling energy when manufacturing, that is, when charging fresh concrete into a molding form, to a level that sufficiently satisfies environmental standards. Another object of the present invention is to provide a method and an apparatus for producing fresh concrete, which reduce noise and vibration generation at a construction site as much as possible.

It is a further object of the present invention to measure and record the important steps that affect the quality during the manufacturing process, ie, the temperature and workability of fresh concrete immediately before putting it in, and to put it into a mold for each item. An object of the present invention is to provide a manufacturing and construction method capable of accurately executing product quality assurance by measuring and recording time, energy application time, and energy level. Still further, an object of the present invention is to provide a concrete hardening accelerator and a retarder which are added after being adjusted so as to maintain optimum workability according to the shape and weight of the product before being put into a molding mold. ,
An object of the present invention is to provide a manufacturing and construction method capable of effectively performing quality assurance by measuring and recording each data of a control for adding a fluidizing agent or the like. Also,
In addition to the measurement and recording of data during the filling and molding stage, in addition to the ambient temperature of the curing device,
The center of the concrete filled in the mold for each item
An object of the present invention is to provide a manufacturing and construction method capable of performing more accurate quality assurance by measuring a surface temperature, supplying an optimal heat energy for each product thickness for a required time, and measuring and recording these data. . The object of the present invention is
It is an object of the present invention to provide a method and an apparatus capable of performing good quality control and production records of fresh concrete at a construction site and performing the same work properly and reliably as at a concrete secondary product manufacturing plant.

[0017]

Means for Solving the Problems Hereinafter, the present invention will be described using reference numerals in the accompanying drawings. In the production method of claim 1, hydraulic cement, fine aggregate, coarse aggregate, and water are used.
Further, if necessary, a chemical admixture for concrete or other admixtures is added and kneaded to produce a fresh concrete 34. The fresh concrete 34 is supplied to the fresh concrete loading devices 1, 2, 3 having a secondary mixing function. On the other hand, concrete function-enhancing material 11 composed of one or more of coal ash, incinerated ash, stone-based fine powder, silica fume, and the like,
A concrete hardening accelerator, water, a chemical admixture for concrete, and, if necessary, one or more of other admixtures and hydraulic cement are added and suspended.
The concrete function-enhancing material 11 processed into a slurry state is supplied to the fresh concrete dosing devices 1, 2, 3 having a secondary mixing function, and the fresh concrete 3
4 or after kneading, while charging the fresh concrete 34 directly or via the charging hopper 56 into the concrete secondary product molding form 7.
The molding is performed by applying a required filling energy. That is,
This is a method in which the slurry-like concrete function-enhancing material 11 and the fresh concrete 34 are kneaded by the fresh concrete input devices 1, 2, and 3 having a secondary kneading function.

According to the second aspect of the present invention, the concrete function-enhancing material 11 composed of one or more of coal ash, fine stone-based powder, incinerated ash, and silica fume is provided with a concrete hardening accelerator, water, A chemical admixture for concrete is added, and if necessary, another admixture or one or more of one part of hydraulic cement is added and suspended. The slurry-processed concrete function-enhancing material 11 is added to and mixed with the concrete being kneaded to produce a fresh concrete 34, and the fresh concrete 34 is put into the molding form 7 via the input hopper. While applying the filling energy, it is molded. That is, this is a method in which the slurry-like concrete function-enhancing material 11 is added to the present mixer in the process of producing fresh concrete, and slump loss can be prevented because of the slurry.

According to a third aspect of the present invention, there is provided a method for producing a fresh cement obtained by mixing a hydraulic cement, a fine aggregate, a coarse aggregate and water with a chemical admixture for concrete or other admixtures, if necessary. Fresh concrete dosing equipment with secondary mixing function for concrete
To supply. A concrete hardening accelerator, water,
A chemical admixture for concrete, and if necessary, one or more of other admixtures and hydraulic cement are added. Fresh concrete loading devices 1, 2, 3 with a secondary mixing function of this concrete function enhancing material 11
After being mixed with or mixed with the fresh concrete 34, the fresh concrete is charged into the concrete secondary product molding form 7 while applying the filling energy to form it. That is, the concrete function-enhancing material 11 is added to the fresh concrete input devices 1, 2, and 3 having the secondary kneading and mixing function without being formed into a slurry state, and kneaded with the fresh concrete 34. Slump loss can be prevented by the fresh concrete loading devices 1, 2, and 3 having a mixing function.

According to a fourth aspect of the present invention, the hydraulic cement is manufactured by adding a hydraulic admixture, a fine aggregate, a coarse aggregate, and water and, if necessary, a chemical admixture for concrete or other admixtures. Fresh concrete 3
4 is supplied to the fresh concrete dosing devices 1, 2, 3 with the secondary mixing function, and the concrete hardening accelerator, the chemical admixture for concrete, etc. are supplied to the fresh concrete dosing devices 1, 2, 3 with the secondary mixing function. After being supplied and kneaded or mixed with fresh concrete, or after being mixed, the fresh concrete 34 is charged into the molding form 7 while applying filling energy to perform molding. That is, without using coal ash or incineration ash, a method in which only a concrete hardening accelerator and a chemical admixture for concrete are mixed with fresh concrete 34 by a fresh concrete input device 1, 2, 3 having a secondary mixing function. Yes, fresh concrete feeding device with secondary mixing function 1,
2 and 3, slump loss can be prevented.

According to the manufacturing method of the fifth aspect, the application of the filling energy to the fresh concrete 34 put into the molding form 7 is performed by swinging, sliding or twisting, or a mixed movement of these two or three. It is performed by one or a combination of an oscillating-type filling method that gives a stroke and a long cycle; a vibrating table-type filling method; a vibrator form-mounting-type filling method;

According to the manufacturing method of the sixth aspect, the application of the filling energy to the fresh concrete 34 put into the molding form 7 is performed by the oscillating filling method alone or by the oscillating filling method and other vibration filling methods. When carrying out by the combination of the above, the molding form 7 is loaded on the bogie 8 having a longer length than the molding form 7, and both ends of the bogie 8 projecting laterally from both ends of the molding form 7. High-frequency vibrations generated instantaneously by the collision with the reversing mounts 9
To the fresh concrete 34 inside. The waveform of the high-frequency vibration is superimposed on the crest of the basic waveform to improve the filling characteristics of fresh concrete.

According to the manufacturing method of claim 7, when the filling energy is applied to the fresh concrete 34 by the oscillating filling method alone or in combination of the oscillating filling method and another vibrating filling method, the concrete secondary Depending on the conditions such as the shape, dimensions, and weight of the product, the rotation speed, amplitude (number of swings),
The rotation angle (total amplitude), the horizontal distance and vertical distance (radius of rotation) from the center of rotation 10 or the center of the transverse axis to each end of the molding form 7, or the position of the bogie 8 from the center of rotation 10 or the center of the transverse axis. The horizontal distance and the vertical distance to the end are set and adjusted so that the filling energy (G) applied to the fresh concrete is optimized.

[0024] In the manufacturing method according to the eighth aspect, the temperature, workability (slump) or viscosity, weight, etc. of the fresh concrete 34 supplied to the fresh concrete dosing devices 1, 2 and 3 having the secondary mixing function are measured and recorded. Then, the amount (hardening accelerator, retarder, fluidizing agent, etc.) of the admixture added and adjusted so that the quality (properties) of the fresh concrete 34 matches the purpose of use is measured and recorded. The filling energy is adjusted to the molding form 7 and the fresh concrete 34 by one or a combination of a filling method, a vibrating table type filling method, a vibrator form mounting type filling method, and an internal vibration type filling method. When applying while filling, the magnitude of the filling energy and the filling time are measured and recorded together with the molding time.

According to a ninth aspect of the present invention, the molding mold 7 is conveyed to a curing room, or the molding mold 7 is covered with a shielding sheet to perform accelerated curing of the product by steam under high pressure or normal pressure. Alternatively, a heating medium is supplied to a mold having a curing function to promote the curing of the product.

In the manufacturing method according to the tenth aspect, when a heating medium is supplied to the molding mold having a curing function to perform accelerated curing of the product, in addition to the ambient temperature of the curing device, the molding mold is added to the molding mold for each item. The temperature of the central part and the surface part of the filled concrete are measured, the optimal thermal energy is supplied for the required time for each product thickness and volume, and these data are measured and recorded.

[0027] In the method for producing and constructing a quality-controlled fresh concrete according to the eighteenth aspect, it is manufactured in a factory in advance and installed on a truck with an agitator or a site required by other methods, or a production line for secondary products. Before the fresh concrete to be transported is directly put into a formwork assembled on site by a truck with an agitator or another method, or immediately before being supplied to a hopper of a pump truck for feeding a fresh concrete. In addition, a fresh concrete supply device having a secondary kneading function, in which a load cell and other measuring devices and a recording device are integrated, once received and required, a necessary chemical admixture for concrete,
Other admixtures, concrete function enhancing materials, and concrete hardening accelerators are added, and the outside air temperature during secondary kneading (° C.) and the amount of fresh concrete to be kneaded secondarily (Kg) are added. Of concrete admixture for concrete (K
g), the amount of other admixtures (Kg), the amount of concrete function enhancing material (Kg), the amount of concrete hardening accelerator (Kg), kneading time (seconds), The number of rotations (.rpm) of the fresh concrete, the temperature (° C) of the fresh concrete during the secondary kneading, and the workability (cm) are measured and recorded in time series, and the change in the workability that occurs during transportation. Is corrected to the workability of the design blending, and then supplied to a mold or a hopper of a pump truck for pumping fresh concrete, and the fresh concrete is cast at a predetermined place.

In the method for producing and applying fresh concrete according to the nineteenth aspect, the fresh concrete is manufactured in advance at a factory and transported to a truck with an agitator or another site required by other methods, or a production line for secondary products. Before loading the concrete, by agitated truck or other method, directly on a formwork assembled on site or just before feeding it to the hopper of a pump for pumping fresh concrete. This is a fresh concrete supply device with secondary kneading function, in which the dossels and other measuring devices and the recording device are integrated.
Chemical admixtures for concrete added as necessary, other admixtures, concrete function enhancing materials, concrete
When the curing accelerator is previously processed into a suspension / slurry with another device, the amount of each material to be added (Kg) and the ambient temperature (° C), the suspension time (minutes), the viscosity and the temperature (° C) ) Is measured and recorded, and the slurry-processed material is added to a fresh concrete supply device having a secondary kneading function, and stirred.
Then, the fresh concrete is supplied to the mold or the hopper of a pump pump for feeding the fresh concrete, and the fresh concrete is cast at a predetermined place.

According to a twentieth aspect of the present invention, in addition to the configuration of the eighteenth or nineteenth aspect, a single or a plurality of fresh concrete supply devices with a secondary kneading function are installed and supplied. I do. As described above, in the method for manufacturing, quality control and construction of fresh concrete according to claims 18 to 20, the temperature and workability (slump) of the fresh concrete 34 supplied to the fresh concrete charging device 2 with the secondary mixing function.
Alternatively, the viscosity, weight, etc. are measured and recorded, and a chemical admixture for concrete, or another admixture or a concrete function-enhancing material is added and kneaded so that the quality (properties) of the fresh concrete 34 conforms to the mix design. ,
The amount of these additives is measured and recorded, and the hopper 9 of the pump truck for direct formwork or fresh concrete pumping is used.
8. It is also possible to separately record which part (part) of the building or the building was used.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION A molding form having a curing function refers to a part or the whole of an upright part, a plane part, an oblique part, and other parts in contact with concrete, which are independent or plural. The space has a double structure, and the space is filled with a heating material or a heating agent, or high-pressure steam or hot air,
Hot air, a heating medium such as heated water or oil is allowed to flow or stay, or a heating substance such as water or oil filled in the space is heated or heated by electric heating or another method, so that one surface or Heat for accelerating hardening is given to concrete from both sides. In a preferred use of this molding mold with curing function, in order to uniformly cure the different thickness and volume of the concrete secondary product within the same time, adjust according to the thickness and volume of each part of the product The modified minimum heat is applied to the space.

The curing temperature is adjusted by manually or automatically controlling the supply amount of the heating medium. As one method,
A control device is provided in the conduit for injecting the heating medium into the space of the double structure of the molding form, and sensors such as a flow meter and a thermometer are connected to the control device. Depending on the thickness and volume of each part of the product, the heating medium is adjusted and injected into each space until the surface temperature of each part and the temperature of the central part become equal to a preset value, and the temperature of the surface part is further adjusted. There is a method of maintaining the same temperature for 0 to 120 minutes after the temperature of the central portion becomes equal. Thus, a high-quality product can be manufactured without heat energy loss. As described above, in addition to the measurement record of the data at the filling molding stage, also at the curing stage of the product, in addition to the ambient temperature of the curing device, the temperature of the central part of the concrete filled into the molding mold for each item in addition to the ambient temperature of the curing device. The quality assurance of the product can be further ensured by measuring the temperature of the surface portion, supplying the optimum heat energy for each product thickness for a required time, and measuring and recording these data.

The concrete hardening accelerator may be water-based or powder-based. As a method of a fresh concrete dosing device with a secondary mixing function, a feeding mechanism with a secondary mixing function is provided in addition to a stationary type loading device 2 in which a charging mechanism with a secondary mixing function is attached to a fixed object on a production line. Is mounted on a carrier 54 such as a tire-type forklift or a crawler-type transport vehicle having a self-propelling ability, or a space moving means 84 such as an overhead traveling crane is provided with a loading mechanism 3 having a secondary mixing function. The aerial self-propelled loading device 1 is mounted on a vehicle, and when supplied by a truck 93 with an agitator at a construction site, there is also a method using a fresh concrete receiving and assembling stand 95. In either system, it is desirable to mount the main body of the charging mechanism with the secondary mixing function so that the direction of the main body can be freely changed vertically, horizontally, and back and forth with respect to the support. When the loading mechanism with the secondary mixing function is made detachable from the support, the secondary mixing function of the fresh concrete 34 in the optimum workability state is not affected by the outside temperature or the concrete kneading temperature. It can be put into the molding form 7 from the attached fresh concrete supply device. Also,
In the self-propelled fresh concrete loading devices 1, 2 and 3 with the secondary mixing function, when the charging mechanism with the secondary mixing function is removed, the forklift 54 and the overhead traveling crane 84 can be used for normal lift work and transport work. Can be used.

A stationary type fresh concrete loading device 2 having a secondary kneading function is mounted on one or two molding molds 7.
It is also possible to install a plurality of units on the table and move the two or four or more fresh concrete loading devices 2 up, down, left and right to put the fresh concrete 34 into the molding form 7. When the loading mechanism with a mixing function is mounted on a transport vehicle 54 such as a forklift to form a self-propelled fresh concrete loading device 1 with a secondary mixing function, the driving force of the transport vehicle 54 mixes the fresh concrete. , A concrete hardening accelerator, a concrete admixture for concrete, and the addition of fresh concrete to a molding form. In addition, two or four or more fresh concrete loading hoppers 56 are provided for one or two of the stationary type fresh concrete loading devices 2 with a secondary mixing function, and these loading hoppers 56 are installed. By moving it up, down, left, and right, the fresh concrete 34 can be put into the molding form 7. 52 and 53 at the construction site
By preparing the assembling stand 95 for receiving fresh concrete having a roof as shown in (1), fresh concrete of stable quality can be supplied even in rainy weather.

The main component of the concrete hardening accelerator to be added may be one or more of lithium, aluminum, thallium, gallium sulfate and double sulfates containing these metals. The chemical admixture for concrete is a high-performance water reducing agent, high-performance superplasticizer, high-performance AE superplasticizer or high-performance AE superplasticizer, the main component of which is naphthalene-based naphthalene sulfonate formalin condensate + special lignin sulfone Acid, naphthalene sulfonate formalin condensate + long-acting polymer (release polymer)
In the case of melamine, a melamine sulfonic acid formalin condensate + a slump loss reducing agent is used. In the case of a polycarboxylic acid, a polycarboxylic acid compound, a polycarboxylic ether, a polycarboxylic acid compound + a crosslinked polymer are used. Aminosulfonic acid, alkyl naphthalene, lignin sulfonate, oxycarboxylate, polycarboxylate, trimethylolmelamine monosulfonate condensate, tar sulfonate, alkyl allyl sulfonate, polyalkyl allyl sulfonate, In the triazine system, a polyol complex, a cellulose ether, a glycidol derivative, and a rhodan compound are used.
Species or a mixture of two or more can be used.

The admixture added as necessary is a calcium aluminate-based expanding agent; a quick-setting binder, a thickener, a separation resistance agent, an antifoaming agent, a siliceous powder, fly ash, pozzolan, blast furnace slag; Aluminum hydroxide, calcium sulfate, sucrose, aluminum chloride, polyaluminum chloride;
Salts of aluminum sulfate, aluminum ammonium sulfate and the like; oxycarboxylic acids such as gluconic acid, citric acid and tartaric acid; sodium, lithium, potassium, strontium and calcium salts; alumina silicate, zirconium silicide, diatomaceous earth, bentonite, It can be selected from silica sand, kaolin, cellulosic, acrylic, polysaccharide polymers, water-soluble polysaccharides, sodium peptate, and the like.

A hardening agent for concrete such as stone / mineral powder, silica sand, coal ash, etc. added to a fresh concrete in the manufacturing process or a fresh concrete input device having a secondary kneading function, which is processed into a slurry and added. ,
As the ratio of the mixture of the chemical admixture for concrete, for example, coal ash (alone) = 1: 1 in a weight ratio where the amount of cement used per m ^{3 of} concrete is 1
1.5-0.5, silica sand (single) = 1: 1.5-0.0
5, silica fume (alone) = 1: 1.5-0.05,
Coal ash + silica sand (mixed) = 1: 1.5-0.05, coal ash + silica fume (mixed) = 1: 1.5-0.05, silica sand + silica fume (mixed) = 1: 1.5 ~ 0.05,
Coal ash + silica sand + silica fume (mixed) = 1: 1.5-
0.05, concrete hardening accelerator = 1: 0.01-
0.20, Chemical admixture for concrete = 1: 0.002
０．０0.035, water cement ratio = 25% to 85%.

As a means for processing the concrete function-enhancing material 11 such as coal ash, incinerated ash, stone-based fine powder, and silica fume into a slurry, a suspension machine or a mixer 4 is used. The concrete function enhancing material 11 is added to the material of the fresh concrete being manufactured in the batcher plant 62 or the like, or is added later to the fresh concrete 34 manufactured in the batcher plant or the like.
Means for transferring the concrete function-enhancing material 11 from the mixer 4 to the mixer 15 of the batcher plant 62, the fresh concrete dosing devices 1, 2, 3 with a secondary kneading function, or the supply hopper 12 for the concrete function-enhancing material are Transfer pump 5 and transfer pipe 14,
Alternatively, a belt conveyor 48 is used. Mixer 1
5 is supplied through a screw-type feeder 33 with a temporary storage hopper or directly to fresh concrete dosing devices 1, 2, and 3 having a secondary kneading function. The mixture is sufficiently stirred and mixed with the function-enhancing material 11, and is then directly or via the input hopper 56 and the shooter 57 into the molding form 7.

The method of mixing the necessary amount of the concrete function-enhancing material 11 into the fresh concrete 34 based on a predetermined composition and supplying the mixture to each molding line is based on the concrete kneading temperature in a normal state. Is less than 20 ° C. and digestion time per batch is 30
It is desirable to be within minutes. Naturally, a production process in which the digestion time of one batch exceeds 15 minutes is uneconomical in terms of cost. Outside of these conditions, for example, if the kneading temperature and digestion time of the fresh concrete 34 exceed the above-described conditions, the amount of the concrete hardening accelerator and the mixing ratio with coal ash and the like, and also the chemical admixture for concrete By changing the combination with the hydraulic cement or the hydraulic cement, it is possible to adjust the composition so as to meet the working conditions.

As a method for producing and supplying a stable fresh concrete 34 by more detailed management, a fresh concrete 34 to which a concrete hardening accelerator, coal ash, or the like is added immediately before being put into the molding form 7 is used.
Is supplied to the fresh concrete dosing devices 1, 2 and 3 having a secondary mixing function, in which the secondary mixing and fine addition of the chemical admixture for concrete are performed. Concrete can be manufactured at low cost. A fresh concrete metering and control device 31 is attached to the fresh concrete loading devices 1, 2, 3 with the secondary mixing function. A fresh concrete data measuring and recording device 60 is attached to the fresh concrete dosing devices 1, 2, 3 with the secondary kneading function, and the temperature and workability (slump) of the fresh concrete 34 immediately before being poured are chronologically measured. Measure and record. By adjusting the fresh concrete to be charged based on this measurement data, a truly scientific quality assurance system that could hardly be implemented until now can be established. Also, at the construction site, before the assembled formwork 101 or the truck 93 with the agitator is put into the hopper 98, the fresh concrete input device 2 with the secondary mixing function includes a fresh concrete measuring and controlling device 31, A fresh concrete data measuring and recording device 60 is attached to measure and record the temperature and workability (slump) of the fresh concrete 34 immediately before putting in time series. By adjusting the fresh concrete to be input based on this measurement data, a truly scientific quality assurance system that could hardly be implemented until now is also established for fresh concrete used at construction sites. Can be.

Further, the fresh concrete 34 produced and transported in the ordinary batcher plant 62 is received by the screw-type feeder 33 with a temporary storage hopper, and the fresh concrete input devices 1 and 2 having the secondary mixing function are provided therefrom. , 3 is supplied, or before and after the supply of the fresh concrete 34, the slurry-like concrete function-enhancing material 11 is supplied. It can be put into the frame 7.

In another embodiment of the production method of the present invention, materials such as a hardening accelerator, coal ash, a chemical admixture for concrete, and the like are used.
Fresh concrete loading device with next mixing function 1,
It can also be added directly to 2, 3 and stirred and supplied.

In the production method of the present invention, when the fresh concrete 34 is charged into the molding
An oscillating low-noise molding device 6 is used as one means for providing a proper and sufficient filling energy for compaction. The low-noise molding device 6 applies the filling energy to the fresh concrete 34 by the swinging motion of low rotation (low frequency) and high amplitude (large stroke). Low noise molding equipment 6 according to the type of product (dimensions, shape, weight, etc.)
Distance from the center of the axis 10 to the lower surfaces 8a and 8b of the end of the form-loading truck 8 in a horizontal state (radius of rotation), the height of the reversing platform 9 (related to the amplitude), and the number of revolutions of the low-noise molding device 6 ( The optimum kinetic energy is applied to the molding form 7 and the fresh concrete 34 to be filled by adjusting and changing the number of swings. The low-noise molding device 6 is provided with a low-noise molding data measurement recording device 61 for measuring and recording the number of rotations, the magnitude of the filling energy, the filling time, and the like. The drive of the device 6 is controlled.

As the vibration filling method, a conventional vibration table type filling method, a vibrator mounting type filling method or an internal vibration type filling method can be arbitrarily selected. An oscillating filling method can be used in combination. Either method adjusts the amplitude and the number of revolutions so that the noise at the sound pressure level is 85 dB or less, and has a workability such that the fresh concrete 34 can be charged and filled in the molding form 7 in a short time. By performing the adjustment using the fresh concrete loading devices 1, 2, and 3 having a secondary mixing function, a good-quality concrete secondary product can be efficiently manufactured.

Furthermore, the swing characteristics of a large stroke (30 mm to 300 mm) and a long cycle (30 rotations / minute to 150 rotations / minute) by the low noise molding device 6 and a conventional vibration filling method which is extremely different from this. Vibration characteristics (amplitude: 0.5mm)
２2 mm, cycle: 3000 rotations / minute to 9000 rotations / minute)
In this manner, the time required for charging and charging fresh concrete and the improvement in appearance and finish of the product after molding and curing are more effectively achieved. For medium- and large-sized products, fresh concrete is filled for 30 minutes to 120 minutes.
By applying a minute vibration of 85 dB or less with a form-mounting vibrator after one minute, it is possible to prevent a decrease in adhesive force due to breathing occurring at a lower portion of a reinforcing bar incorporated in a molded product. In addition, the structure of the concrete can be further densified, and a high-quality product can be stably and efficiently manufactured.

The proper combination of a concrete hardening accelerator, coal ash, incinerated ash, stone-based fine powder, a chemical admixture for concrete, etc. makes it easy to adjust the pot life and has a favorable effect on the material of concrete. To enhance the concrete function. By providing the necessary energy by controlling the filling energy, concrete separation can be prevented and energy can be saved.In addition, the low noise filling molding method using the rocking method can be used alone or with the conventional vibration table method. By using this method together with the vibration filling molding method, it is possible to realize a significant improvement in the environment. By measuring and recording various data useful for quality control at important points in the manufacturing process and using material supply management for plant operation management, it is possible to improve the quality of products, and the recorded measurement data can be used by users. By submitting it in response to the request, the effectiveness of quality assurance can be ensured.

A molding form in which fresh concrete is charged and charged by a fresh concrete charging device having a secondary mixing function is most efficiently transported to a curing room for curing in a small product (product weight of less than 1000 kg). For medium and large-sized products (product weight 1000 kg or more), it is desirable to cure at the position where fresh concrete is charged and filled. For this purpose, a mold having a curing function and a control function is used, and a control device for the curing time and the additional heat is used together. This eliminates the need for a transport facility and a large curing room for moving the formwork, and can reduce the overall equipment cost from one-half to one-third of the conventional cost. In addition to the measurement and recording of data during the filling and molding stage, the center and surface temperatures of concrete filled into the mold for each item are measured in addition to the ambient temperature of the curing device during the curing stage of the product. Supply the optimal thermal energy for the required time for each product thickness,
By measuring and recording each of these data, the quality assurance of the product can be further ensured.

In order to promote the hardening of concrete and guarantee the quality, heat management is an important technical management item in the production process. By filling with a low-noise molding device, wear of the formwork is prevented and durability is improved. It can be used for two to three times as long in durability as the conventional vibration filling method. In addition, the cost of the formwork can be reduced and the structure can be simplified. The time for charging and filling fresh concrete is also reduced by 30% to 50% as compared with the conventional case, and the curing time and space, product stock and product storage are also reduced by 30% to 50% compared to the conventional case. As a result, the overall manufacturing cost is reduced from 15% to
30% reduction, quality assurance system and environmental improvement in compliance with ISO9001, response to reduction of working hours, labor saving
It can save labor, save time, improve productivity, and effectively utilize industrial waste (such as coal ash).

[0048]

FIG. 1 to FIG. 10 show a series of flow of a manufacturing process of a manufacturing plant used for carrying out the method of the present invention. In the production plant shown in FIG. 1, cement, water, fine aggregate, coarse aggregate, a chemical admixture for concrete, and other admixtures, which are common concrete materials, are measured first, and then used in a normal batcher plant. The fresh concrete 34 is manufactured by being kneaded and mixed by the mixer 15 of 62, and is fed through the fresh concrete temporary storage hopper 16 to the screw type feeder 33 with the temporary storage hopper by the fresh concrete pressurizing pump 17 via the pumping pipe 18. . The pumped fresh concrete 34 is sent to the stationary type fresh concrete loading device 2 with a secondary mixing function by the screw 35 of the feeder 33.

On the other hand, water, a chemical admixture for concrete and other admixtures, and a concrete hardening accelerator are added to the coal ash, silica fume, stone-based fine powder, cement, and fine aggregate, respectively, as required, by the measuring device 47. The concrete function-enhancing material 11 which is weighed, put into a suspension machine or a mixer 4 and agitated, and processed into a slurry state is transferred by a transfer machine or a transfer pump 5 to a stationary type fresh concrete charging apparatus having a secondary mixing function. Be transported. The transfer of the concrete function-enhancing material 11 is controlled and managed by a concrete function-enhancing material quantitative transfer controller device 13a and a concrete function-enhancing material measuring device 13b. The fresh concrete 34 is managed by the controller 31 for measuring and controlling the fresh concrete provided in the fresh concrete loading device 2 with the secondary mixing function, and is supplied to the fresh concrete loading device 2 with the secondary mixing function. Data such as workability and temperature of the fresh concrete 34 is measured and managed by the fresh concrete data measurement / recording controller 60. The supplied fresh concrete 34 and the slurry-like concrete function-enhancing material 1
After being sufficiently stirred by the stirring blades 32, 1 is put into the concrete secondary product molding form 7 and is filled and molded by the swinging motion of the swing type low noise molding device 6.
The operation data of the oscillating low-noise molding device 6 is measured and managed by the data measurement record control device 61.

In the manufacturing plant shown in FIG. 2, the concrete function-enhancing material 11 processed into a slurry is controlled by the concrete function-enhancing material measuring device 13b, and the concrete function-enhancing material feeder or hopper 12 is controlled by the belt conveyor 48. Sent to The concrete function-enhancing material 11 introduced into the stationary type fresh concrete introduction device 2 with the secondary kneading and mixing function by the screw 49 of the hopper 12 is subjected to the secondary kneading from the transfer pump 17 through the screw type feeder 33 with the temporary storage hopper. It is mixed and stirred with the fresh concrete 34 supplied to the fresh concrete loading device 2 with a mixing function. The supply amount of the fresh concrete 34 is managed by the fresh concrete metering and controller device 31. In addition, property data such as the temperature and workability of the fresh concrete 34 are measured and managed by the fresh concrete data measurement and recording controller device 60. The fresh concrete 34 and the slurry-like concrete function-enhancing material 11 supplied in a fixed amount are sufficiently stirred by the stirring blades 32 and then charged into the product forming form 7. Filled and molded. The operation data of the oscillating type low noise molding device 6 is a data measurement record control device 6
1 is measured and managed.

The manufacturing plant shown in FIG. 3 and the manufacturing plant shown in FIG. 4 are respectively a stationary type concrete feeder with a secondary mixing function in the manufacturing plant shown in FIG. 1 and the manufacturing plant shown in FIG. No. 2 is changed to a floor self-propelled type. In this case, when the tire-type forklift or crawler-type transport vehicle 54 passes through or temporarily stops on the weighing scale 63, the fresh concrete 34 is quantitatively weighed by the weight indicator 64 connected to the weighing scale 63 and the floor is weighed. It is supplied to a surface self-propelled type fresh concrete loading device 3 with a secondary mixing function.
The quantitative measurement of the concrete function enhancing material 11, the quantitative measurement of the fresh concrete 34, and the measurement and recording of various property data are the same as described above. The fresh concrete 34 and the slurry-like concrete function-enhancing material 11 supplied in a fixed amount are sufficiently stirred and then charged into a molding form 7 to be filled and molded by an oscillating low-noise molding apparatus 6. The operation data of the oscillating low-noise molding device 6 is measured and managed by the data measurement record control device 61.

In the manufacturing plant shown in FIG. 5, the fresh concrete 34 weighed by the weighing device 46 is kneaded with a chemical admixture for concrete and other admixtures added later by the secondary kneading mixer 55. Thereafter, the raw material is mixed and stirred with the concrete-function-enhancing material 11 in the form of a slurry by the self-propelled fresh-concrete mixing device 3 with a secondary kneading function, and is charged and filled into the molding form 7.

In the production plant shown in FIG.
Measuring device 47 for silica fume, stone-based fine powder, cement, fine aggregate, and water, a chemical admixture for concrete and other admixtures, and a concrete hardening accelerator as required.
, And are charged and stirred by the suspension machine or the mixer 4. The concrete-function-enhancing material 11 processed into a slurry is sent to a mixer 15 of a batcher plant by a transfer machine or a transfer pump 5, and cement, water, fine aggregate, coarse aggregate, and general concrete materials are used.
Kneaded with a chemical admixture for concrete and other admixtures to produce fresh concrete. The fresh concrete 34 is fed through a fresh concrete temporary storage hopper 16 and a screw type feeder 33 with a temporary storage hopper by a fresh concrete pressure pump 17 through a pressure feeding pipe 18. The fresh concrete 34 is fixed by a screw 35 of a feeder 33 and is a fixed type fresh concrete input device 2 with a secondary mixing function.
After being quantitatively fed by the quantitative metering control device 31 and sufficiently stirred by the stirring blades 32, it is charged into the molding form 7 and filled and molded by the swinging motion of the swinging low noise molding device 6. You. Temperature of fresh concrete 34,
Property data such as workability is measured and managed by a data measurement and recording controller device 60, and various data of the oscillating low noise molding device 6 is measured and managed by a data measurement and recording control device 61.

In the manufacturing plant shown in FIG. 7, the slurry-processed material 11 is transferred to the concrete function-enhancing material feeder or hopper 12 by the belt conveyor 48 and the screw 49 of the hopper 12 controls the batcher plant 62. It is sent to the mixer 15 and kneaded. Fresh concrete 34 supplied from the transfer pump 17 to the stationary type fresh concrete loading device 2 with a secondary kneading function via the screw-type feeder 33 with a temporary storage hopper is charged into the molding form 7 and shaken. Filling and molding are performed by the swinging motion of the dynamic low noise molding device 6. The supply amount of the fresh concrete 34 is managed by the fresh concrete metering and controller device 31, and the property data such as the temperature and workability of the fresh concrete 34 are measured and managed by the fresh concrete data measurement / recording controller device 60, and oscillate. The operation data of the low-noise molding device 6 is measured and managed by the data measurement record control device 61.

The manufacturing plant shown in FIG. 8 and the manufacturing plant shown in FIG. 9 are different from the manufacturing plant shown in FIG. 6 and the manufacturing plant shown in FIG. It is replaced by a self-propelled fresh concrete loading device 3 with a secondary mixing function.

In the manufacturing plant shown in FIG. 10, the concrete-function-enhancing material 11 in the form of a slurry is transferred to the concrete-function-enhancing material feeder or hopper 12 by the belt conveyor 48, and the screws 49 of the hopper 12 are screwed.
Is sent to the mixer 15 of the batcher plant 62 to be mixed. The fresh concrete 34 supplied from the transfer pump 17 to the secondary mixing mixer 55 by the transfer pump 17 is quantitatively measured by the measuring device 46. The fresh concrete 34 supplied from the mixer 55 to the fresh concrete loading device 3 with a secondary mixing function of a floor self-propelled type is charged and molded into a molding form 7.

In the embodiment shown in FIG. 11, two hoppers 56 for charging the fresh concrete 34 are installed between the stationary type fresh concrete charging device 2 with the secondary kneading function and the mold 7. ing. One hopper 5
While the concrete 6 is being supplied with the fresh concrete 34, the fresh concrete 34 is charged into the formwork 7 by another hopper 56. This eliminates the waiting time, and enables the work of charging and filling fresh concrete to be performed efficiently.

In the embodiment shown in FIG.
Are installed in parallel, two stationary type fresh concrete loading devices 2 with a secondary mixing function are placed in parallel, and four fresh concrete loading hoppers 56 are placed in parallel. While the two units on the right side (left side) are receiving the supply of fresh concrete 34, the two units on the left side (right side) are simultaneously charged and filled with two pieces of the molding form 7 into the two forming molds 7.・
The time efficiency of filling is further improved.

In the embodiment shown in FIG. 13, two stationary concrete input devices 2 with a secondary mixing function are installed in parallel, and a pair of shooters 57 are used to form the fresh concrete 34 into a molding form 7. And filling. While one charging device 2 is receiving the supply of fresh concrete 34 from the hopper 33, the other charging device 2 is inverted and loads the fresh concrete 34 into the molding form 7. This further improves the time efficiency of charging and filling.

In the embodiment shown in FIG. 14, four stationary concrete feeding devices 2 with a secondary kneading function are installed in parallel, and are mounted on two molding molds 7 installed in parallel. On the other hand, the simultaneous input of the fresh concrete 34 can be performed. At this time, the capacity of each of the four fresh concrete loading devices 2 with a secondary mixing function was 500 kg.
About 2 to 3 as shown in FIG.
When the fresh concrete 34 is charged and filled into layers, preferably more, the concrete hardening accelerator and the admixture are uniformly dispersed in the fresh concrete, so that the quality of the product can be further improved. If only the charging time is taken, it can be charged at once with a large tonning device of several tons, but it is preferable to install multiple small ones in parallel in terms of uniformity of fresh concrete quality and production efficiency. .

FIG. 15 shows an example of an oscillating type low noise molding apparatus 6 used in the method of the present invention. A carriage 8 on which a molding form 7 is loaded is fixed to a fixed frame (shown in FIG. (Not shown), and a reaction force at which the lower surfaces 8a and 8b of both ends of the carriage 8 come into contact with each other, or a hollow and hemispherical homer 67 for soundproofing, rubber, wood, urethane A shock absorber 59 in which a band-shaped member such as a foam or a steel plate is combined in a single layer or a plurality of layers, and a spacer 66 for adjusting the amplitude are installed to absorb vibration / shock and prevent / reduce noise. . By changing the thickness and number of the spacers 66 in accordance with the dimensions and weight of the product (molding frame), the filling effect by adjusting the time lag of bogie reversal can be improved.
By performing the height adjustment, the amplitude of the swing at the time of filling and molding can be arbitrarily adjusted.

A crank 68 is fixedly mounted on the carriage receiving base 65, and an electric motor (not shown) mounted on a fixed frame is provided in a vertically long through hole 70 provided at the lower end of the crank 68. A cam 68 fixed eccentrically to the output shaft is fitted. The cam 68 and the inner peripheral surface 71 of the through hole 70 are not in contact with each other, and play is generated between them. When the lower end surfaces 8a and 8b of the carriage 8 collide with the reaction force or the reversing gantry 9, the carriage 8 reversely rotates by a small angle due to the reaction force. This bouncing motion is repeated several times until both the carriage and the reversing platform 9 come into contact, and high-frequency vibration is generated. This high-frequency vibration is superimposed on the wave front of the swing basic waveform as shown in FIG. 47, and the added high-frequency vibration causes the fresh concrete 3
The fluidity of 4 further increases, and the fresh concrete 34 is filled evenly in every corner of the molding form 7. The momentary high-frequency vibration is greatly affected by the amount of eccentricity of the cam 68 and the amplitude setting. The length of the cart 8 is set to be longer than the length of the molding frame 7, and the left and right ends 8 a, 8
When b is extended to the side of the left and right ends 7a and 7b of the molding frame 7, the horizontal distance from the center of rotation 10 to the reversing base 9 becomes longer, and the turning radius R of the swing becomes larger. Thus, more effective high-frequency vibration can be generated.

FIGS. 16, 17 and 18 show a case in which two molding molds 7 are stacked in parallel on a carriage 8 of an oscillating low-noise molding machine 6, and the reversing gantry 9 is a mold end 7a. , 7b are located farther from the rotation center 10. The ends 8a and 8b of the trolley 8 that has been swung and rotated collide with the upper end of the reversing gantry 9 to be reversed. The high frequency vibration instantaneously generated by bogie 8 bouncing back several times on reversing gantry 9 is efficiently propagated to molding form 7 and fresh concrete 34 in the form, whereby fresh concrete 3 is formed.
The filling and compaction of No. 4 is performed better.

FIG. 19 shows that a fresh concrete 34 is placed on the molding form 7 which has been oscillated by the oscillating type low noise molding apparatus 6.
It is the conceptual diagram which looked at the process of charging and filling from the side.
In this example, the fresh concrete 34 is put into the forming mold 7 which is oscillating in three layers. At this time, the fresh concrete 34 performs a horizontal motion as indicated by an arrow, and also performs a vertical motion due to a collision at the time of inversion. As a result, excess air entrained in the fresh concrete 34 is dissipated / dissipated, and the compaction of the fresh concrete 34 is improved. At this time, the slump of the fresh concrete 34 is 5 cm or more.
Although it is possible to fill even a low value of about 8 cm, according to the experimental results, a low slump may cause an increase in charging / filling time or cause a defect such as a jumper.
Fresh concrete with a slump value of ２５25 cm is more economical.

FIG. 20, FIG. 21, and FIG. 22 show an example of the condition setting when the mold 7 to be mounted on the oscillating type low noise molding apparatus 6 is classified into three types, small, medium, and large. . Tables 6 and 7 show the calculation formulas and measurement data of various quantities relating to the movement of the forming mold and fresh concrete and the filling energy (vibration acceleration) at this time. As is clear from these measurement results, the optimal filling energy can be applied to each condition by setting and adjusting the conditions corresponding to the type (shape and weight) of the product. At the same time, by adjusting the fresh concrete to the optimum workability (slump) according to the type of product, no extra energy or power is required,
Filling and molding with low noise, low vibration and energy saving are possible.

In the embodiment shown in FIG. 23, two hoppers 56 for charging the fresh concrete 34 are installed between the stationary type fresh concrete charging device 2 with a secondary mixing function and the molding form 7. ing. One hopper 5
While 6 is receiving the supply of fresh concrete 34 from the charging device 2, another hopper 56 loads the fresh concrete 34 into the molding form 7. This eliminates waiting time and improves time efficiency. In this example, a swing type filling method and a conventional vibrating type filling method are used in combination, and vibrators 73 are attached to the left and right side surfaces of the molding form 7.

In the embodiment shown in FIG. 23, the fresh concrete loading device 2 with the secondary kneading function and the mold 7
And two hoppers 56 are provided between the hopper 5 and the other hopper 5 while one hopper 56 is receiving the supply of the fresh concrete 34 from the charging device 2.
6 puts the fresh concrete 34 into the molding form 7. This eliminates the waiting time, and the charging and filling time is efficient. In this example, a swing type filling method and a conventional vibrating type filling method are used in combination.

FIG. 25 is an enlarged view of the self-propelled floor type fresh concrete loading device 3 with a secondary mixing function. When the tire-type forklift 54 comes on the weighing scale 63, The fresh concrete 34 is quantitatively weighed by a weight indicator 64 connected thereto, and is supplied to an inverting type bucket of the fresh concrete loading device 3 having a secondary mixing function. The concrete admixture for concrete, which is added later for adjustment, is stored in an inverted type fixed quantity tank 74. In this example, the conventional vibratory filling method is independently employed, and the vibrator 73 is attached to the front and rear wives sides of the molding form 7.

In the embodiment shown in FIG. 26 and FIG.
After the filling and molding of No. 4 is performed and the molding form 7 is shifted to the finishing line, re-vibration is given by the conventional form-mounting vibrator 73. The vibrator 73 is attached to the front and rear wife sides of the molding form 7. A lift device 58 that pushes up the cart 8 is installed inside the reversing mount 9.

In the embodiment shown in FIGS. 28 and 29, the rocking type low noise
After the filling and molding of No. 4 is performed and the molding form 7 is transferred to the finishing line, re-vibration is applied by the conventional form-mounting vibrator 73. The vibrators 73 are attached to the left and right side surfaces of the molding form 7. A lift device 58 that pushes up the cart 8 is installed inside the reversing mount 9.

In the embodiment shown in FIG. 30, a conventional vibration table type filling method is used for filling and molding of fresh concrete. The molding form 7 is placed on the receiving table 77 of the vibration table type filling / molding apparatus 76, and the vibrator 73 is provided on the lower surface side of the receiving table 77. The fresh concrete 34 supplied to the stationary type fresh concrete charging device 2 with the secondary kneading function by the screw 35 of the screw type feeding device 33 with the temporary storage hopper is turned into the molding form 7 by reversing the bucket of the charging device 2. And charging energy is given by the vibrator 73.

In the embodiment shown in FIGS. 31 and 32, the building is provided with overhead traveling crane devices 78 and 80 in the upper and lower stages, and the moving body 9 of the overhead traveling crane 78 on the upper stage side.
2 is equipped with a hopper 79 for charging fresh concrete. The moving body 84 of the overhead traveling crane 80 on the lower side is equipped with a charging mechanism with a secondary mixing function, thereby constituting an aerial self-propelled fresh concrete charging device 1 with a secondary mixing function. The vibrators 73 are attached to the front and rear widow sides of the molding forms 7 arranged in a plurality of rows and columns on the horizontal plane. When the moving body 92 of the overhead traveling crane 78 moves in the X-axis and Y-axis directions, the fresh concrete 34 is supplied to the aerial self-propelled fresh concrete loading device 1 with a secondary mixing function. Moving body 8 of overhead traveling crane 80
By moving the 4 in the X-axis and Y-axis directions, the fresh concrete 34 is charged into the molding form group, and the filling energy is given by the vibrator 73.

In the embodiment shown in FIGS. 33 and 34, the moving body 92 of the upper traveling crane 78 is equipped with a hopper 79 for putting fresh concrete, and the moving body 84 of the lower traveling crane 80 is equipped with An input mechanism with a secondary mixing function is provided, and thereby, an aerial self-propelled fresh concrete input device 1 with a secondary mixing function is configured. The vibrators 73 are attached to the front and rear widow sides of the molding forms 7 arranged in a plurality of rows and columns on the horizontal plane. When the moving body 92 of the overhead traveling crane 78 moves in the X-axis and Y-axis directions, the fresh concrete 34 is supplied to the fresh concrete loading device 1 with the secondary mixing function, and the moving body 84 of the overhead traveling crane 80 is moved. Is moved in the X-axis and Y-axis directions, whereby the fresh concrete 34 is charged into the group of molding frames 7. In this example, a swing-type low-noise molding device 8 is provided in a lower space 75 of a molding form group in a building.
3 is arranged so as to be movable in the X-axis and Y-axis directions.
Further, a vibrator 73 is attached to the front and rear wives sides of each molding frame 7. The filling energy of the fresh concrete 34 is given by the oscillating low-noise molding device 6 and the vibrator 73. Instead of moving one oscillating low-noise molding device 6 vertically and horizontally, one oscillating low-noise molding device 6 can be arranged for each column or row of the molding form 7. .

In the embodiment shown in FIGS. 35 and 36, the moving body 92 of the upper traveling crane 78 is provided with a hopper 79 for putting fresh concrete, and the moving body 84 of the lower traveling crane 80 is attached to the moving body 84 of the lower traveling crane 80. An input mechanism with a secondary mixing function is provided, and thereby, an aerial self-propelled fresh concrete input device 1 with a secondary mixing function is configured. The vibrators 73 are attached to the front and rear widow sides of the molding forms 7 arranged in a plurality of rows and columns on the horizontal plane. When the moving body 92 of the overhead traveling crane 78 moves in the X-axis and Y-axis directions, the fresh concrete 34 is supplied to the fresh concrete loading device 1 with the secondary mixing function, and the moving body 84 of the overhead traveling crane 80 is moved. Is moved in the X-axis and Y-axis directions, whereby the fresh concrete 34 is charged into the group of molding frames 7. In the lower space 75 of the group of forming molds in the building, one swing-type low-noise molding device 83 is arranged for each 71 forming molds. Further, a vibrator 73 is attached to the front and rear wives sides of each molding frame 7. The filling energy of the fresh concrete 34 is provided by the individual oscillating low-noise molding device 6 and the vibrator 73.

FIG. 52 and FIG. 53 show an embodiment in a construction site. 2 with hoist crane 96
It is supplied to the fresh concrete input machine 2 with the next mixing function. The weight is measured and recorded at the time of dispensing. The temperature of the supplied fresh concrete is immediately measured together with the outside air temperature, and the workability is also measured and recorded.At the same time, a chemical admixture for concrete is added according to the difference in workability based on the design mix, and the mixture is kneaded for 40 seconds or more. The workability after mixing is measured and recorded again, and if there is a difference, the fine addition is adjusted again and automatically adjusted to ensure the set value. It can also be adjusted manually as needed.

FIGS. 54 and 55 show an embodiment in a construction site as in the previous embodiment. In the present embodiment, while adjusting the workability, concrete hardening accelerator, other admixtures, and further concrete alone or in combination with a plurality of concrete function-enhancing materials, directly in its original form,
Alternatively, these are processed into a slurry, added and kneaded into a fresh concrete input machine with a secondary kneading function, and a concrete admixture for concrete is again added and adjusted so as to obtain a predetermined workability, so that the set value is ensured. Will be adjusted automatically. It can also be adjusted manually as needed. Naturally, various necessary data are measured and recorded.

FIG. 56 is also an embodiment in a construction site.
The fresh concrete transported to the construction site by the truck 93 with the agitator is supplied to the fresh concrete input device 2 with a secondary mixing function, and various necessary data are measured and recorded, and the workability is set based on the measured data. Various admixtures and concrete function-enhancing materials required for the above are added, and a chemical admixture for concrete is added again to adjust the workability to a predetermined value, and the data are measured and recorded.

The following seven experimental examples are shown in connection with the implementation of the method of the present invention, but the present invention is not limited to these examples. Experimental example 1: Comparison of pot life (slump loss) Experimental example 2: Comparison of bending strength load Experimental example 3: Comparison of appearance (average bubble diameter) Experimental example 4: Comparison of vibration waveforms Experimental example 5: Sound pressure level Example 6: Calculation of charging energy (G)

Experimental Example 1: Comparison of pot life (slump loss) Comparative examples are ordinary portland cement 396 kg / m ³ , water 182 kg / m ³ , fine aggregate 701 kg / m ³ , coarse aggregate 1017 kg
/ m ³ , water reducing agent 6.0 kg / m ³ , aluminum sulfate (liquid)
40.0 Kg / m ³ was mixed with a mixer, and the change in slump value of the produced fresh concrete was measured according to JIS A1101.
It measured according to. The measurement results are as shown in the upper part of Table 1. Example is aluminum sulfate (liquid) 4
0.0Kg / m ³ , water 10.0Kg / m ³ , water reducing agent 2.0Kg / m
^3. Coal ash 50.0Kg / m ³ processed into slurry, ordinary Portland cement 396Kg / m ³ , water 182
Kg / m ^3, fine aggregates 701Kg / m ^3, coarse aggregate 1017Kg / m ^3,
4.0 kg / m ^{3 of} water reducing agent was mixed with a mixer to produce fresh concrete, and the change in slump value was measured according to JIS A1.
It measured according to 101. The measurement results are as shown in the lower part of Table 1. In comparison with the comparative example, the slump loss of the fresh concrete of the example of the present invention was small at any measurement time point, and the pot life was long.

[Table 1]

Experimental Example 2: Comparison of flexural strength load Comparative examples are ordinary Portland cement 396 kg / m ³ ,
Water 182 kg / m ³ , fine aggregate 701 kg / m ³ , coarse aggregate 1017
Kg / m ^3, kneading the water-reducing agent 6.0 kg / m ³ in the mixer and filled into mold frame by the swinging type filling method shown fresh concrete produced in Figure 37. Curing condition is 70 ℃
The steam heating was performed for a total of 4 hours, with the temperature rising time until 2 hours and the holding time at 70 ° C. being 2 hours, and the product (shown in FIG. 38 and FIG. 39) was immediately removed from the mold and removed. Immediately after the mold, at a material age of 7 days, and at a material age of 14 days, the bending strength load was measured by the method shown in FIG. The measurement results are as shown in the upper part of Table 2. Examples are ordinary portland cement 396Kg / m ^3, water 182 kg / m ^3, fine aggregates 701Kg / m
^3, coarse aggregate 1017Kg / m ^3, kneading the water-reducing agent 4.0 Kg / m ³ in the mixer, mixed secondary kneading the stationary fresh concrete produced received by function fresh concrete throwing device, aluminum sulfate (liquid) After adding 40.0 kg / m ³ and a water reducing agent 2.0 kg / m ³ to the fresh concrete in the fresh concrete charging device having a secondary kneading function, and kneading with the fresh concrete, this fresh concrete is shown in FIG. The mold was filled by a rocking filling method. The curing conditions were as follows: the heating time up to 70 ° C. was 2 hours, the holding time at 70 ° C. was 2 hours, and steam curing was performed for a total of 4 hours. Demolding, immediately after demolding, age 7
The bending strength load was measured by the method shown in FIG. The measurement results are as shown in the middle part of Table 2. An example is the ordinary Portland cement 350
Kg / m ^3, water 182 kg / m ^3, fine aggregates 701Kg / m ^3, coarse aggregate 1017Kg / m ^3, kneading the water-reducing agent 4.0 Kg / m ³ in the mixer, 2 fresh concrete produced in stationary Receiving in the fresh concrete loading device with the next mixing function,
1. Aluminum sulfate (liquid) 40.0 kg / m ³ , water reducing agent
Was added to 0 kg / m ³ and coal ash 50.0 kg / m ³ of fresh concrete remains in the secondary Mixing in function fresh concrete dosing device original, after mixing the fresh concrete and kneading, drawing the fresh concrete 37 Was filled into the mold for shaping by the rocking filling method shown in FIG.
The curing conditions were as follows: the temperature rise time up to 70 ° C. was 2 hours, the holding time at 70 ° C. was 2 hours, and steam curing was performed for a total of 4 hours.
The product (shown in FIGS. 38 and 39) was immediately removed from the molding form, and the bending strength load was measured by the method shown in FIG. 40 immediately after the release, at the age of 7 days and at the age of 14 days. The measurement results are as shown in the lower part of Table 2. In comparison with the comparative example, the bending strength load of the examples of the present invention and the examples was large at any measurement time point, and a product having high strength was obtained.

[Table 2]

Experimental Example 3 Comparison of Appearance (Average Cell Diameter) Comparative examples were 396 kg / m ^{3 of} ordinary Portland cement,
Water 182 kg / m ³ , fine aggregate 701 kg / m ³ , coarse aggregate 1017
Kg / m ^3, kneading the water-reducing agent 4.0 Kg / m ³ mixer and filled into mold frame by manufactured conventional vibrating table-type low-frequency filling method of the fresh concrete. Curing conditions were as follows: the temperature rising time to 70 ° C. was 2 hours, the holding time at 70 ° C. was 2 hours, and three products (FIGS. 41 and 42) were manufactured by steam curing for a total of 4 hours. 200mm on the part
An area of × 200 mm was set as shown in FIG. 42, and a maximum of six bubbles were arbitrarily extracted, the diameter was measured, and the average value was calculated. The results are as shown in the upper part of Table 3.
Examples are ordinary Portland cement 350 kg / m ³ ,
Water 182 kg / m ³ , fine aggregate 701 kg / m ³ , coarse aggregate 1017
Kg / m ^3, kneading the water-reducing agent 4.0 Kg / m ³ in a mixer, receiving the fresh concrete produced in secondary Mixing function fresh concrete dosing device stationary, aluminum sulfate (liquid) 40.0 kg / m ³ , water 10.0 kg / m ³ ,
Water reducing agent 2.0 Kg / m ^3, the coal ash 50.0 kg / m ³ is processed into a slurry, and added to secondary Mixing fresh concrete in function fresh concrete throwing device, after mixing the fresh concrete and kneading, This fresh concrete was filled into a molding form by an oscillating filling method. Curing conditions are as follows: heating time to 70 ° C for 2 hours, 70 ° C
Assuming that the holding time is 2 hours, three products (FIGS. 41 and 42) were manufactured by steam curing for a total of 4 hours, and a 200 mm × 200 mm area was set in the center of the side of the product as shown in FIG. The maximum diameter of six bubbles was arbitrarily extracted, the diameter was measured, and the average value was calculated. The results are as shown in the middle row of Table 3. In the embodiment, ordinary Portland cement 35 is used.
0 kg / m ³ , water 182 kg / m ³ , fine aggregate 701 kg / m ³ , coarse aggregate 1017 kg / m ³ , and a water reducing agent 4.0 kg / m ³ are mixed with a mixer, and the produced fresh concrete is fixed. Received by a fresh concrete loading device with secondary mixing function, aluminum sulfate (liquid) 40.0Kg / m ³ , water 1
0.0Kg / m ³ , water reducing agent 2.0Kg / m ³ , coal ash 50.0Kg
/ m ³ is processed into a slurry, added to the fresh concrete in a fresh concrete charging device with a secondary kneading function, mixed with the fresh concrete, and this fresh concrete is molded by a rocking filling method. After that, re-vibration was applied by adjusting the amplitude and the number of revolutions so that the noise at the sound pressure level of the conventional frame-mounted vibrator was 80 dB. The curing conditions were 4 hours in total, with the heating time up to 70 ° C being 2 hours and the holding time at 70 ° C being 2 hours.
The three products (Figs. 41 and 42) were manufactured by steam curing for a time, and a 200 mm x 200 mm area was set in the center of the side surface of the product as shown in Fig. 42. The diameter was measured and the average was calculated. The results are as shown in the lower part of Table 3. In comparison with the comparative example,
Both the examples of the present invention and the appearance of the examples were good.

[Table 3]

[0082] Experimental Example 4: Comparison Comparison example of a vibration waveform, ordinary portland cement 396Kg / m ^3, water 182 kg / m ^3, fine aggregates 701Kg / m ^3, coarse aggregate 1017Kg
/ m ³ and a water reducing agent 4.0 Kg / m ³ were kneaded with a mixer, and the produced fresh concrete was filled into a mold using a conventional table-type low-frequency filling method. Vibration waveforms of upper / lower (Z-axis), front / rear (Y-axis), left / right (X-axis) directions at the time of filling into a molding form can be measured using a piezoelectric velocity converter, broadband vibrometer, intelligent recorder Was set at the measurement position in FIG. 43 and measured. FIG. 45 shows the measurement results.
Examples are ordinary Portland cement 350 kg / m ³ , water 182 kg / m ³ , fine aggregate 701 kg / m ³ , coarse aggregate 1017 kg
/ m ³ and water reducing agent 4.0Kg / m ³ are kneaded and mixed by a mixer, and the produced fresh concrete is received by a stationary type fresh concrete charging device having a secondary kneading function, and aluminum sulfate (liquid) 40.0Kg / m ³ addition, water 10.0 kg / m ^3, water reducing agent 2.0 Kg / m ^3, the coal ash 50.0 kg / m ³ is processed into a slurry, the secondary mixing fresh concrete in function fresh concrete throwing device Then, after mixing with the fresh concrete, the fresh concrete was filled into a forming mold by an oscillating filling method. Vibration waveforms of upper / lower (Z-axis), front / rear (Y-axis), left / right (X-axis) directions at the time of filling into a molding form can be measured using a piezoelectric velocity converter, broadband vibrometer, intelligent recorder Was set at the measurement position in FIG. 44 and measured. The measurement results are shown in FIGS. 46 and 47.

Experimental Example 5: Comparison of sound pressure level The comparative example is 396 kg / m ^{3 of} ordinary Portland cement,
Water 182 kg / m ³ , fine aggregate 701 kg / m ³ , coarse aggregate 1017
Kg / m ^3, kneading the water-reducing agent 4.0 Kg / m ³ mixer was filled with fresh concrete produced in molding mold product shown in FIGS. 38 and 39 by conventional table-type low-frequency charging method . The sound pressure level at the time of filling the mold was measured at a distance of 1 m from the mold using a precision sound level meter, a digital audio tape recorder, and a piston horn. FIG. 48 shows the measurement results. Examples are ordinary Portland cement 350 kg / m ³ , water 182 kg / m ³ ,
Fine aggregate 701Kg / m ³ , coarse aggregate 1017Kg / m ³ , water reducing agent 4.0Kg / m ³ are kneaded and mixed with a mixer, and the produced fresh concrete is placed in a fixed type secondary concrete mixing device with a secondary kneading function. Receiving, aluminum sulfate (liquid) 40.0Kg / m ³ , water 10.0Kg / m ³ , water reducing agent 2.0
Kg / m ³ , 50.0Kg / m ^{3 of} coal ash are processed into slurry,
After being added to and mixed with fresh concrete in a fresh concrete charging device having a secondary kneading function, the fresh concrete is mixed into a shaping method by a rocking type filling method to form a product mold shown in FIGS. 38 and 39. Filled. The sound pressure level at the time of filling the mold was measured at a distance of 1 m from the mold using a precision sound level meter, a digital audio tape recorder, and a piston horn. FIG. 48 shows the measurement results. As compared with the comparative example, the sound pressure level of the example of the present invention was significantly reduced. The water reducing agent used in Experimental Examples 1 to 5 is a sodium naphthalene sulfonate-formaldehyde condensate (Mighty 150). As the coal ash, clinker ash having the properties shown in Tables 4 and 5 was used.

[Table 4]

[Table 5]

Experimental Example 6: Calculation of Filling Energy (Vibration Acceleration G) In the calculation example, the vibration acceleration in the oscillating low-noise molding apparatus of the present invention was calculated when the rotation speed was constant and the amplitude was changed. is there. Table 6 shows the results calculated for each of the small, medium, and large products.

[Table 6] In the calculation example, the vibration acceleration in the oscillating low-noise molding apparatus of the present invention is calculated when the rotation speed is changed while the amplitude is kept constant. Table 7 shows the results calculated for each of the small, medium and large products.

[Table 7]

Experimental Example 7: Adjustment of Slump Value A material for fresh concrete mixed with a design slump value of 18 ± 2 cm, ordinary Portland cement 360 kg / m ³ , water 170 kg / m ³ , fine aggregate 730
KG / m ³ , coarse aggregate 1156Kg / m ³ , and concrete admixture 4.3Kg / m ³ are mixed with a mixer, and the produced fresh concrete is received in a truck with an agitator, and transport time to the site is 30 minutes each. Table 8 shows the measurement results of the slump values of the fresh concrete after being transported for 60 minutes and 90 minutes.

[Table 8] Table 9 shows that fresh concrete transported by a truck with an agitator for 90 minutes was once received by a fresh concrete supply device with a secondary kneading function, and a chemical admixture for concrete, other admixtures, a concrete function-enhancing material, concrete The results are shown in which the curing accelerator was measured, added to the fresh concrete supply device with a secondary kneading function in its original form, stirred, and adjusted to a design slump value of 18 ± 2 cm.

[Table 9]

[0086]

As described above, according to the present invention, a concrete hardening accelerator and industrial waste such as coal ash, incinerated ash, fine stone-based powder, water, hydraulic cement, a chemical admixture for concrete, and other admixtures By appropriately combining the above and processing the slurry into a slurry and adding it, it was possible to sufficiently control the change in the pot life due to the rapid reaction of the concrete hardening accelerator. In addition, coal ash and incinerated ash can help prevent the depletion of sand (fine aggregate) resources that are indispensable for concrete. In other words, coal ash and incineration ash can produce great applications as a substitute for sand

According to the common technical knowledge so far, it is impossible to collect and manage quality records, particularly manufacturing records, in process management required by the standard ISO9000 series of the International Organization for Standardization in terms of technology and cost. In the production method of the present invention, the fresh concrete 34 supplied from the batcher plant is temporarily stored in principle,
Before supplying the fresh concrete with the secondary mixing function to the fresh concrete dosing devices 1, 2, 3, fresh concrete 34
The weight and properties of the concrete are accurately measured and measured, and the temperature of the fresh concrete 34 is set 30 to 100 seconds before it is charged into the forming mold 7 from the fresh concrete loading devices 1, 2, and 3 having the secondary mixing function. , Workability (slump value) is measured and recorded instantaneously, and the concrete hardening accelerator and concrete admixture for concrete are measured and measured respectively, and the required amount is added, and then added by kneading again. Since the fresh concrete 34 most suitable for filling is charged into the mold 7 directly or after being received by the supply hopper 56 and then charged and filled, various data necessary for quality assurance of the product can be collected and recorded as accurately as possible. , And manufacturing conforming to ISO9000 series standards.

In another embodiment of the present invention, a material such as coal ash and a concrete hardening accelerator, a chemical admixture for concrete,
Alternatively, the concrete function-enhancing material 11 obtained by adding and blending silica fume or other fine powder that enhances the function of another concrete and processed into a slurry by a suspension machine is used as a fresh concrete input device 1 having a secondary kneading function.
At the same time as the fresh concrete 34 or one of them, first supply and mix it again and mix it again. Measure the workability here and add a chemical admixture for concrete to adjust it to a predetermined value. After the post-addition, it is directly charged into the mold 7 or received by the supply hopper and then charged and filled, so that the necessary data is collected and recorded in the same manner as described above under the true manufacturing control. Good quality products can be manufactured.

In another embodiment of the present invention, coal ash, a concrete hardening accelerator, and a chemical admixture for concrete are added in the original form during the production of fresh concrete, or are added after being processed into a slurry by a suspension machine. Whichever method is selected, the fresh concrete 34 is measured, adjusted, and recorded in the fresh concrete input devices 1, 2, and 3 with the secondary mixing function from the viewpoint of the management of the fresh concrete 34, so that proper process management can be performed. A good quality product can be manufactured based on it. In the present invention, the measurement and recording of various data and the adjustment operation based thereon are performed and the fresh concrete 34 is re-mixed, so that the quality and uniformity of the concrete are achieved,
High strength and high durability concrete secondary products can be manufactured.

In the present invention, the durability of concrete can be improved by using coal ash or the like. Further, the conventional production method can be achieved by combining the fresh concrete input devices 1, 2, 3, with the secondary mixing function, the rocking type low noise molding device 6, the molding form 90 with the concrete curing function, and its control device. High-quality products that could not be produced at low cost under true manufacturing control.

According to the oscillating type low noise molding apparatus 6 of the present invention, the molding form 7 and the fresh concrete 34 are oscillated with a long cycle and a large stroke (in the conventional vibration filling method, the number of revolutions is 3000 to 9000 rpm, Amplitude: 0.5-2m
m, but in the present molding apparatus, the number of rotations: 30 to 120 r
pm, amplitude: 30 to 300 mm) or kinetic energy such as instantaneous high-frequency vibration at the time of reversal is applied as filling energy, thereby imparting fluidity to the fresh concrete 34, so that a good compacting effect can be obtained. Since air bubbles are reduced in both the inside and the surface of the secondary concrete product 86 and the appearance finish is improved, the number of man-hours for rework is significantly reduced, and the production efficiency is improved.

By giving a long-cycle swinging or the like in a long cycle, excessive noise and vibration do not occur, and the noise level is reduced from 70 to 80 dB from 110 to 120 dB (1/1000 in ratio). 1 / 100,000). In addition, the vibration acceleration by the present molding apparatus is 0.1 to 3 G from the conventional 6 to 20 G, which allows sufficient filling and molding, so that pollution due to vibration and noise is properly prevented, and the factory and surrounding areas Environment is improved, and stress on workers and local residents is reduced. In addition, if the molding form is chucked for sound and vibration proofing with a conventional vibrator, the above vibration acceleration is directly applied to the molding form, and the molding form is very durably damaged and worn. Poor. For this reason, the molding form must be made very strong and strong, and the investment amount of the formwork inevitably increases. However, in the oscillating low-noise molding apparatus used in the method of the present invention, charging and filling by minute vibration acceleration and kinetic energy are performed.
Due to the molding, damage and abrasion of the mold are significantly reduced (the mold life is two to three times as long as the conventional one), and the investment amount of the mold is drastically reduced.

Further, since the damage and abrasion of the mold are greatly reduced, the appearance of the product is prevented from being deteriorated due to the leakage of the toro, and the occurrence rate of defective products is also reduced. In the conventional method, many devices could not be used at one time because of the restrictions of vibration and noise, and the manufacturing system with two or three straight lines could not be adopted. Therefore, a large number of devices can be used at one time, and the production can be performed by two or three shafts, the operation rate of the equipment can be increased two to three times, and the production efficiency of the secondary concrete product can be greatly improved. In the method of filling and molding by rocking, etc., the fresh concrete moves smoothly along the reinforcing bars arranged inside the molding form, so that no gap is generated under the reinforcing bars, and the bonding strength between the concrete and the reinforcing bars is reduced. And the crack strength of secondary concrete products increases.

[0094] Conditions for producing a high-quality concrete product include, in general, selection and preparation of high-quality materials, reduction of the water-cement ratio, kneading method, filling method, temperature control of the material, curing method, and the like. It is said that optimization is appropriate. Comparing the filling method with the workability (slump) of fresh concrete and the correlation of the three important factors of the curing method, when the fresh concrete with a small unit water amount, that is, when the slump is 0 to 6 cm (± 3 cm), the filling energy ( (Vibration acceleration) was 3G or more, and optimally 6G or more was required. In recent years, chemical admixtures for concrete have made remarkable progress, the unit water volume has been greatly reduced, and the slump can be adjusted from 10 cm to 25 cm, or the slump flow can be adjusted from 45 cm to 75 cm. Was. Although it has begun to be partially used in secondary product factories, mold costs are high due to high material costs, which leads to cost increases, complicated management of use, and long curing acceleration time. Due to restrictions such as an increase, it has been difficult to completely adopt the company. Therefore, reducing the unit water volume, reducing the slump (5 cm to 8 cm), and filling with a strong filling energy is a condition for producing a good concrete secondary product, increasing the filling energy, and It is common sense to give for a long time. For this reason, there are many cases where excessive filling energy is applied, which is a background that noise generation cannot be prevented. In such technical common sense, a relatively small slump value of fresh concrete is provided by the application of a long-period, large-stroke swing and the superposition of instantaneous high-frequency vibration at the time of reversal by the noise and low vibration swing-type molding device 6. The utility of the method of the present invention to impart fluidity to 34 and provide good compaction is significant.

According to the method of the present invention, by using a fresh concrete feeding device having a secondary mixing function and an effective use of a concrete hardening accelerator, the noise can be reduced to 85 dB or less even in a factory having a conventional vibrator. Efficiency can be improved, and charging / filling time is 30% to 50%
%, The curing time can be reduced by 30% to 50%, and the shipping material age can be shortened from 14 days to within 3 or 7 days. The combined use of the oscillating low-noise molding method and the conventional vibration filling method (vibration table method, vibrator formwork mounting method, formwork internal vibration method) reduces the generated noise by 8%.
It can be reduced to 5 dB or less, and the charging / filling time can be further reduced by 20% to 30%. At the same time, good results could be seen in the finished appearance of the product.

By adding a concrete hardening accelerator to fresh concrete, the hardening speed can be increased and the curing can be promoted, so that the curing time can be reduced, the curing equipment cost can be reduced, and the curing space can be reduced. In addition, since the pot life can be extended and the amount of the concrete hardening accelerator to be added can be controlled optimally, the curing time and temperature can be controlled, the strength can be quickly developed, and a flexible production management system can be established. Since the device used in the method of the present invention has a simplified structure, capital investment costs can be reduced, equipment and device failures can be reduced, and inspection and repair can be easily performed.
Equipment maintenance and management costs can be reduced by 30 to 50% or more compared to the conventional case. In addition, the mold form having a curing function and a control function simplifies the form structure, saves space in production and curing steps, etc., and reduces the required amount of heat energy by 30 to 50% as compared with the conventional case. Since a conventional curing room / curing equipment and a mold transport / moving equipment are not required, the equipment cost can be reduced to 1/3 to 1/5 of the conventional equipment, and a low-cost production system can be provided. Overall, according to the method of the present invention, in a concrete secondary product manufacturing plant, the production cost can be reduced by 20 to 30%, and the inventory can be reduced to 1/2 to 1
/ 3. In addition, when applied to construction sites, fluctuations in the transport time of fresh concrete,
Fresh concrete of constant quality can always be adjusted on site in response to changes due to temperature, so there are no problems due to hardness or softness, and workability is significantly improved even in pumping and direct driving, And,
A quality assurance system compatible with ISO9001 can be established, working hours can be shortened by a system of 40 hours a week, workers can respond to aging, and work and local environment can be significantly improved.
It can sufficiently meet conflicting social demands such as effective use of industrial waste and improvement of productivity.

[Brief description of the drawings]

FIG. 1 is a flow chart showing an example of a production plant used for carrying out the method of the present invention, in which a slurry-like concrete function-enhancing material is directly supplied to a stationary type fresh concrete charging device having a secondary mixing function by a transfer pump. Is done.

FIG. 2 is a flowchart showing an example of a production plant used for carrying out the method of the present invention. Transferred to the supply hopper.

FIG. 3 is a flow chart showing an example of a production plant used for carrying out the method of the present invention. Supplied directly to

FIG. 4 is a flow chart showing an example of a production plant used for carrying out the method of the present invention.
It is transferred to the supply hopper at the previous stage of the fresh concrete input device with the next mixing function.

FIG. 5 is a flow chart showing an example of a manufacturing plant used for carrying out the method of the present invention. Is supplied to the secondary mixer at the preceding stage.

FIG. 6 is a flow chart showing an example of a manufacturing plant used for carrying out the method of the present invention. It is supplied to a fresh concrete dosing device with a secondary mixing function.

FIG. 7 is a flow chart showing an example of a production plant used for carrying out the method of the present invention, in which a concrete-enhanced material in the form of slurry is supplied to a mixer for producing fresh concrete by a belt conveyor, and the fresh concrete is placed on a stationary type. It is supplied to a fresh concrete dosing device with a secondary mixing function.

FIG. 8 is a flow chart showing an example of a production plant used for carrying out the method of the present invention, in which a concrete-function-enhancing material in the form of slurry is supplied to a mixer for producing fresh concrete by a transfer pump, and fresh concrete is supplied to a floor surface. It is supplied to a traveling type fresh concrete loading device with a secondary mixing function.

FIG. 9 is a flow chart showing an example of a production plant used for carrying out the method of the present invention, in which a concrete-function-enhancing material in a slurry state is supplied to a mixer for producing fresh concrete by a belt conveyor, and the fresh concrete is supplied to a floor surface. It is supplied to a traveling type fresh concrete loading device with a secondary mixing function.

FIG. 10 is a flow chart showing an example of a production plant used for carrying out the method of the present invention, in which a concrete-function-enhancing material in a slurry state is supplied to a mixer for producing fresh concrete by a belt conveyor, and fresh concrete is supplied to a floor surface. It is supplied to the secondary mixer at the preceding stage of the traveling type fresh concrete charging device having a secondary mixing function.

FIG. 11 shows an example of a production plant used for carrying out the method of the present invention, in which two fresh concrete hoppers are arranged with respect to one stationary type fresh concrete charging device having a secondary mixing function. It is a front view showing an aspect.

FIG. 12 shows an example of a production plant used to carry out the method of the present invention, in which four stationary hoppers for charging fresh concrete are arranged for two fresh concrete charging devices having a secondary mixing function of a stationary type. It is a front view showing an aspect.

FIG. 13 shows an example of a manufacturing plant used for carrying out the method of the present invention, in which one stationary mold is used for one molding form.
2 fresh concrete feeding device with next mixing function
It is a front view which shows the driving mode at the time of base arrangement.

FIG. 14 shows an example of a manufacturing plant used for carrying out the method of the present invention, in which a stationary 2
4 fresh concrete feeding device with next mixing function
It is a front view which shows the driving mode at the time of base arrangement.

FIG. 15 is an operation principle diagram of an example of an oscillating low-noise molding apparatus used for carrying out the method of the present invention.

FIG. 16 is a plan view of an example of an oscillating-type low-noise molding device used for carrying out the method of the present invention, in which two molding dies are stacked in parallel.

FIG. 17 is a front view of the oscillating low noise molding apparatus of FIG.

FIG. 18 is a side view of the rocking type low noise molding apparatus of FIG.

FIG. 19 is a schematic side view showing a process in which fresh concrete is charged and filled into a molding form by an oscillating low-noise molding apparatus in the method of the present invention.

FIG. 20 is a side view of an example in which a small-sized molding form is mounted on an oscillating-type low-noise molding apparatus in the method of the present invention.

FIG. 21 is a side view of an example in which a medium-sized molding form is mounted on an oscillating low-noise molding device in the method of the present invention.

FIG. 22 is a side view of an example in which a large-sized mold is mounted on a swing-type low-noise molding apparatus in the method of the present invention.

FIG. 23 is a diagram showing an example of a production plant used for carrying out the method of the present invention, in which two fixed hoppers for charging fresh concrete are arranged with respect to one stationary-type fresh concrete charging device having a secondary mixing function. It is a front view which shows an aspect, and a vibrator is attached to the both sides to the mold for molding.

FIG. 24 shows an example of a production plant used for carrying out the method of the present invention, in which two fresh concrete hoppers are arranged with respect to one stationary type fresh concrete charging apparatus having a secondary mixing function. It is a front view showing an aspect, and a vibrator is attached to both wives sides in a mold for molding.

FIG. 25 is a front view of an example of a manufacturing plant used to carry out the method of the present invention, in which fresh concrete is poured into a molding form from a fresh concrete loading device with a secondary mixing function of a floor self-propelled type. The vibrator is attached to the both sides of the molding form.

FIG. 26 is a front view of an example of a manufacturing plant used for carrying out the method of the present invention, in which fresh concrete is charged by an oscillating-type low-noise molding apparatus. Attached to the side.

FIG. 27 is a plan view showing a state where a molding form has been transferred to a finishing process line after fresh concrete has been charged by the low noise molding apparatus of FIG. 26;

FIG. 28 is a front view of an example of a manufacturing plant used for carrying out the method of the present invention, in which fresh concrete is charged by an oscillating low-noise molding apparatus. Attached to.

FIG. 29 is a plan view showing a state where a molding form is transferred to a finishing process line after fresh concrete is charged by the low noise molding apparatus of FIG. 28.

FIG. 30 is a front view of an example of a manufacturing plant used for carrying out the method of the present invention when fresh concrete is put into a molding form by a vibration table type filling method.

FIG. 31 is a front view of an example of a manufacturing plant used for carrying out the method of the present invention, in which an overhead traveling crane is equipped with a fresh concrete charging device with a secondary mixing function, and each forming mold has Vibrators are attached to both wives.

FIG. 32 is a plan view showing the arrangement of the aerial self-propelled fresh concrete dosing device with a secondary kneading function shown in FIG. 31 and a molding form.

FIG. 33 is a plan view showing an example of a manufacturing plant used for carrying out the method of the present invention, in which an overhead traveling crane is equipped with a fresh concrete loading device with a secondary mixing function, and The machine is mounted on both wives, and a swing-type low-noise molding device is movably arranged in the lower space of the molding form group.

FIG. 34 is a plan view showing the arrangement of a self-propelled aerial self-propelled fresh concrete charging device with a secondary kneading function and a molding form in FIG. 33.

FIG. 35 is a plan view showing an example of a production plant used for carrying out the method of the present invention, in which an overhead traveling crane is equipped with a fresh concrete charging device with a secondary mixing function, and each forming mold has Vibrators are attached to both wives, and an oscillating low-noise molding device is arranged for each molding form in the lower space of the molding form group.

36 is a plan view showing the arrangement of the aerial self-propelled fresh concrete dosing device with a secondary kneading function and the molding form in FIG. 35. FIG.

FIG. 37: Experimental example 2 of the present invention (comparison of bending strength load)
1 is a front view of an oscillating low-noise molding apparatus used for manufacturing a test piece in FIG.

FIG. 38 is a front view of a test specimen (U-shaped groove block) manufactured by the low noise molding apparatus of FIG. 37.

FIG. 39 is a side view of the test piece of FIG. 38.

40 is a front view of the test piece of FIG. 38 when a bending load test is performed.

FIG. 41 shows Experimental Example 3 of the present invention (appearance [average bubble diameter]).
FIG. 7 is a front view of a test specimen (U-shaped groove block) in Comparative Example 2).

FIG. 42 is a side view of the test piece of FIG. 41, in which the area of the visual inspection is shown as a square.

FIG. 43 is a side view showing a measurement position of the vibration table type filling apparatus in Experimental Example 4 of the present invention (comparison of vibration waveforms).

FIG. 44 is a side view showing a measurement position of the oscillating low-noise molding apparatus in Experimental Example 4 of the present invention (comparison of vibration waveforms).

FIG. 45 is a vibration waveform diagram of the vibration table type filling apparatus in Experimental Example 4 of the present invention (comparison of vibration waveforms).

FIG. 46 is a vibration waveform diagram of the oscillating low-noise molding apparatus in Experimental Example 4 (comparison of vibration waveforms) of the present invention.

FIG. 47 is an enlarged view of the vibration waveform of FIG. 46.

FIG. 48 is a graph in which measurement data of Experimental Example 5 (comparison of sound pressure levels) of the present invention is plotted.

FIG. 49 is an operation principle diagram of the oscillating low-noise molding apparatus used in Experimental Example 6 (calculation of filling energy) of the present invention.

FIG. 50 is a longitudinal sectional front view of a molding form having a curing function used for carrying out the method of the present invention.

51 is a side view of the molding form with a curing function of FIG. 50.

FIG. 52 is a plan view showing an embodiment of the present invention at a construction site. Fresh concrete transported by a truck with an agitator is supplied to a bucket in a fresh concrete receiving and assembling type gantry, and is secondarily mixed and mixed by a hoist crane. The concrete feeder is supplied with a function, and the concrete feeder is provided with a measuring device of the concrete function reinforcing material.

FIG. 53 is an elevation view of the embodiment of FIG. 52.

FIG. 54 is a plan view showing another embodiment of the present invention at a construction site, in which fresh concrete transported by a truck with an agitator is supplied to a bucket in a fresh concrete receiving and assembling type gantry, and is subjected to secondary by a hoist crane. It is supplied to a concrete dosing machine with a kneading function, and the concrete dosing machine is provided with a suspending or mixing machine for the concrete function-enhancing material.

FIG. 55 is an elevational view of the embodiment of FIG. 54.

FIG. 56 is an elevational view showing still another embodiment of the present invention at a construction site, in which fresh concrete transported by a truck with an agitator is put into a formwork assembled at the site with concrete having a secondary mixing function. It is supplied from the machine via a chute.

[Explanation of symbols]

1 Aerial self-propelled fresh concrete charging device with secondary mixing function 2 Stationary type fresh concrete charging device with secondary mixing function 3 Floor self-propelled fresh concrete charging device with secondary mixing function 4 Concrete function Reinforcement material suspension or mixing machine 5 Concrete function reinforcement material transfer machine or transfer pump 6 Oscillating low noise molding device 7 Concrete secondary product molding form 7a End of molding form 7b Forming form 7c Bogie connection part of molding form 8 Loading truck of molding form 8a Lower surface of end of form loading truck 8b Lower surface of end of form loading truck 9 Reaction force of swing type low noise molding device or Reversing gantry 10 Rotating center axis of rocking type low noise molding device 11 Concrete function reinforcing material 12 Supply machine or supply hopper of concrete function reinforcing material 13a Concrete machine Controller for quantitative transfer of reinforcing material 13b Measuring device for concrete function reinforcing material 14 Pipe for transferring concrete function reinforcing material 15 Mixer of fresh concrete batcher plant 16 Temporary storage hopper for fresh concrete 17 Pump for pumping fresh concrete 18 Pipe for pumping fresh concrete 19a Batch feeder / transfer device for batcher plant 19b Aggregate feeder / transfer device for batcher plant 20 Coal ash feeder / transfer device 21 Silica fume feeder / transfer device 22 Stone based fine powder feeder / transfer device 23a For suspension machine Fine aggregate supply or transfer device 23b Cement supply or transfer device for suspension machine 24 Concrete hardening accelerator supply or transfer pipe for suspension machine 25 Water supply or transfer pipe for suspension machine 26 For suspension machine Chemical admixture supply or transfer pipe for concrete 27 Other supply or transfer pipe for suspension machine 28 Water supply or transfer pipe for batcher plant 29 Chemical admixture supply or transfer pipe for concrete of batcher plant 30 Batcher plant Supply or transfer pipe for other admixtures 31 Metering and control of fresh concrete supplied to the fresh concrete charging device with secondary mixing function 32 Stirring blades of fresh concrete loading device with secondary mixing function 33 Fresh concrete Screw feeder with temporary storage hopper 34 Fresh concrete 35 Screw of screw feeder 36 Branch valve 37 Control valve 38 Water storage tank 39 Concrete chemical admixture storage tank 40 Concrete hardening Elastomer storage tank 41 Other admixture storage tank 42 Cement storage silo 43 Coal ash storage silo 44 Silica fume storage silo 45 Stone based fine powder storage silo 46 Fresh concrete meter 47 Concrete function reinforcing material meter 48 Belt conveyor 49 Concrete function reinforcing material feeder or hopper screw 50 Fine aggregate storage tank 51 Coarse aggregate storage tank 52 Hopper with material meter for concrete in batcher plant 53 Mixer blade for batcher plant mixer 54 Tire Type forklift or crawler type transport vehicle 55 Secondary mixing mixer 56 Fresh concrete input hopper 57 Fresh concrete input shooter 58 Elevator for forming form car lift 59 Shock absorber 60 Fresh Data measurement and recording control device for concrete 61 Data measurement and recording control device for oscillating low noise molding device 62 Batcher plant for fresh concrete 63 Weight scale 64 Weight indicator 65 Forming platform for oscillating low noise molding device 66 Height adjusting spacer for reaction force or reversing gantry 67 Homer for sound and vibration proof of reaction force or reversing gantry 68 Cam of oscillating low noise molding device 69 Crankshaft of oscillating low noise molding device 70 Oscillating low Through-hole of crankshaft of noise shaping device 71 Inner circumferential surface of through-hole of crankshaft of rocking type low noise forming device 72 Cam rotation center of rocking type low noise forming device 73 Vibrator mounted on forming mold 74 Tank for additional addition of fresh concrete dosing device with secondary mixing function 75 Lower space of molding form group 76 Vibration table type filling Molding device 77 Cradle for molding form of vibrating table type filling molding device 78 Overhead traveling crane 79 Fresh concrete loading hopper 80 Overhead traveling crane 81 Overhead traveling crane guide rail 82 Overhead traveling crane guide rail 83 Swing type low Noise forming device 84 Moving body of overhead traveling crane 85 Bending load tester 86 Secondary concrete product 87 Product appearance inspection area 88 Vibration table type filling molding device 89 Vibration measurement point 90 Molding form with curing function 91 Molding with curing function Pipe line of heating medium for formwork 92 Moving body of overhead traveling crane 93 Truck with agitator 94 Pumping truck for pumping fresh concrete 95 Fresh concrete receiving and assembling gantry 96 Hoist crane 97 Bucket 98 Pump for pumping fresh concrete Of hopper 99 fresh concrete beneficiaries prefabricated mold that has been assembled in the fresh concrete discharge chute 101 site of the roof 100 agitator with a track of the gantry

Claims (20)

[Claims] 1. A fresh concrete manufactured by adding and mixing a hydraulic cement, fine aggregate, coarse aggregate and water, and if necessary, a chemical admixture for concrete and other admixtures, to form a secondary concrete. It is supplied to a fresh concrete input device with a mixing function, and coal ash, incineration ash,
A concrete hardening material consisting of one or more of stone-based fine powder, silica fume, etc., a concrete hardening accelerator, water, a chemical admixture for concrete, and if necessary, other admixtures, One or more of the hydraulic cements are added and suspended, and the concrete function-enhancing material processed into a slurry is supplied to the fresh concrete charging device with a secondary mixing function,
While kneading with or mixing with fresh concrete, the fresh concrete is charged into a concrete secondary product molding form directly or via a charging hopper while applying filling energy to perform molding. Manufacturing method of concrete secondary products. 2. A concrete hardening accelerator, water, and a chemical admixture for concrete are added to one or more of the concrete function enhancing materials of coal ash, stone-based fine powder, incinerated ash, and silica fume. Then, if necessary, one or more of other admixtures and hydraulic cements are added and suspended, and the concrete functional reinforcing material processed into a slurry is mixed with the concrete being mixed. The concrete secondary is characterized in that it is added and mixed to produce a fresh concrete, and the fresh concrete is charged into a concrete secondary product molding form through a charging hopper while being filled with energy to form the concrete. Product manufacturing method. 3. A fresh concrete produced by adding and mixing a hydraulic cement, fine aggregate, coarse aggregate and water, and if necessary, a chemical admixture for concrete and other admixtures, to form a secondary concrete. It is supplied to a fresh concrete input device with a mixing function, and coal ash, incineration ash,
Concrete hardening accelerator, water, chemical admixture for concrete, and if necessary, other admixtures or water 1 in hard cement
Seeds or two or more kinds are added, and the concrete function-enhancing material is supplied to the above-mentioned fresh concrete charging device having a secondary kneading function, and while mixing with or mixing with fresh concrete, the fresh concrete is converted into a concrete secondary material. A method for producing a secondary concrete product, characterized in that a charging energy is applied and molded while being charged into a product molding form. 4. A fresh concrete produced by kneading a hydraulic cement, a fine aggregate, a coarse aggregate and water, and if necessary, further adding a chemical admixture for concrete and other admixtures, to form a secondary concrete. It was supplied to a fresh concrete charging device with a mixing function, and a concrete hardening accelerator, a chemical admixture for concrete, etc. were supplied to the fresh concrete charging device with a secondary mixing function, and were mixed with or mixed with fresh concrete. Thereafter, a method for producing a concrete secondary product, characterized in that the fresh concrete is cast into a concrete secondary product molding form while applying filling energy to the fresh concrete. 5. The application of the filling energy to the fresh concrete put into the forming mold is performed by a swing, a slide or a twist, or a swing that gives a mixed motion of two or three of them in a large stroke and a long cycle. The filling method is performed by one or a combination of a vibration table type filling method, a vibrating machine frame mounting type filling method, and an internal vibration type filling method. Item 6. The production method according to any one of Items 4. 6. The method according to claim 1, wherein the filling energy is applied to the fresh concrete to be charged into the forming mold by an oscillating filling method alone or a combination of the oscillating filling method and another vibrating filling method. The formwork is loaded on a bogie having a longer length than the molding form, and both ends of the bogie that protrude laterally from both ends of the forming form collide with the reversing gantry, and are instantaneously generated by the collision. The method according to any one of claims 1 to 5, wherein the high-frequency vibrations are propagated to fresh concrete in a mold. 7. The method according to claim 7, wherein the filling energy is applied to the fresh concrete to be poured into the molding form by the swing filling method alone or in combination with the swing filling method and another vibration filling method. Depending on the conditions such as the shape, size, weight, etc. of the following product, the number of rotations, amplitude (oscillation number), rotation angle (total amplitude), rotation center point or the center of the transverse axis of the shaping mold from each end of the shaping mold The horizontal distance and vertical distance (radius of gyration) to the part, or the horizontal distance and vertical distance from the center of rotation or the center of the transverse axis to the end of the form-loading bogie are determined by the filling energy ( The method according to any one of claims 1 to 6, wherein the setting is adjusted so that G) is optimized. 8. Measure and record the temperature, workability (slump) or viscosity, weight, etc., of the fresh concrete supplied to the fresh concrete dosing device with a secondary mixing function, and use the quality (properties) of the fresh concrete. Measure and record the amount of admixtures such as hardening accelerators, retarders, and fluidizers that have been added and adjusted to match the requirements. Also, rocking-type filling methods, vibrating table-type filling methods, vibrator formwork When applying and adjusting the filling energy to the forming mold and fresh concrete by one or more of the mounting type filling method and the internal vibration type filling method, the size of the filling energy and the filling time are molded. The method according to any one of claims 1 to 7, wherein the time is measured and recorded together with the time. 9. The molding form is conveyed to a curing room, or the molding form is covered with a shielding sheet to promote the curing of the product by steam under high pressure or normal pressure, or the molding form having a curing function is formed. The method according to any one of claims 1 to 8, wherein a heating medium is supplied to perform accelerated curing of the product. 10. When a heating medium is supplied to a molding mold having a curing function to promote product curing, the center of concrete filled in the molding mold for each item is added in addition to the ambient temperature of the curing device. The temperature of the part and the temperature of the surface part are measured, the optimum thermal energy is supplied for a required time for each member thickness or volume of the product, and these data are measured and recorded. The production method described in 1. 11. A plurality of stationary concrete input devices having a secondary mixing function are provided for one or two molding molds, and the two or four or more fresh concrete input devices are vertically moved. The method according to any one of claims 1 to 10, wherein the concrete is moved left and right and the fresh concrete is charged into a molding form. 12. A self-propelled fresh concrete loading device with a secondary mixing function by mounting a loading mechanism with a mixing function on a transport vehicle such as a forklift, and the driving force of the transport vehicle causes a fresh concrete loading device. The method according to any one of claims 1 to 11, wherein kneading, addition of a concrete hardening accelerator, addition of a chemical admixture for concrete, and introduction of fresh concrete into a molding form are performed. 13. Two or more fresh concrete hoppers are provided for one or two stationary concrete mixing devices having a secondary kneading function, and these charging hoppers are vertically moved. The method according to any one of claims 1 to 12, wherein the concrete is moved right and left and fresh concrete is charged into a mold. 14. The concrete hardening accelerator to be added whose main component is a sulfate of lithium, aluminum, thallium, gallium or one of double sulfates containing these metals.
The method according to any one of claims 1 to 13, wherein the method is a kind or two or more kinds. 15. The chemical admixture for concrete to be added is a high-performance water reducing agent, a high-performance superplasticizer, a high-performance AE superplasticizer or a high-performance AE superplasticizer, the main component of which is a naphthalene-based naphthalene. Sulfonate formalin condensate +
It is a special lignin sulfonic acid, a formalin condensate of naphthalene sulfonate + a polymer with sustained activity (release polymer), a melamine-based melamine sulfonic acid formalin condensate + a slump loss reducing agent, and a polycarboxylic acid-based polycarboxylic acid Acid compounds, polycarboxylic acid ethers, polycarboxylic acid compounds + cross-linked polymers, and aminosulfonic acid-based aromatic aminosulfonic acids, alkylnaphthalenes,
Lignin sulfonate, oxycarboxylate, polycarboxylate, trimethylolmelamine monosulfonate condensate, tar sulfonate, alkyl allyl sulfonate, polyalkyl allyl sulfonate, triazine-based polyol complex The method according to any one of claims 1 to 14, wherein the mixture is a mixture of at least one of cellulose, a cellulose ether, a glycidol derivative, and a rhodan compound, and one or more of these components are used in combination. 16. The admixture optionally added,
Calcium aluminate-based expanding agent; quick setting agent, thickening agent,
Separation resistance agent, defoamer, siliceous powder, fly ash,
Pozzolan, blast furnace slag; aluminum hydroxide, calcium sulfate, sucrose, aluminum chloride, polyaluminum chloride; salts of aluminum sulfate, aluminum ammonium sulfate, etc .; oxycarboxylic acids such as gluconic acid, citric acid, tartaric acid, sodium, lithium, Potassium, strontium, calcium salts; characterized by being alumina silicate, zirconium silicide, diatomaceous earth, bentonite, silica sand, kaolin, cellulosic, acrylic, polysaccharide polymer, water-soluble polysaccharide, sodium peptate, etc. The method according to any one of claims 1 to 15, wherein the method is performed. 17. Fresh concrete in the production process,
Alternatively, a mixture of stone / mineral powder, silica sand, coal ash, concrete hardening accelerator, concrete admixture for concrete, which is processed into slurry and added to the fresh concrete input device with secondary mixing function. Coal ash (single) = 1: 1.5 to 0.1 in weight ratio where the amount of cement used per m ^{3 of} concrete is 1.
5, silica sand (single) = 1: 1.5-0.05, silica fume (single) = 1: 1.5-0.05, coal ash + silica sand (mixed) = 1: 1.5-0.05 , Coal ash + silica fume (mixed) = 1: 1.5-0.05, silica sand + silica fume (mixed) = 1: 1.5-0.05, coal ash + silica sand + silica fume (mixed) = 1 : 1.5-0.05, concrete hardening accelerator = 1: 0.01-0.20, chemical admixture for concrete = 1: 0.002-0.035,
The method according to any one of claims 1 to 16, wherein the water cement ratio is 25% to 85%. 18. A truck with an agitator or a fresh agitator manufactured in advance in a factory and transported to an on-site or secondary product production line in need by an agitator truck or other method. By other methods, the load cell and other measuring and recording devices can be integrated before they are directly put into the on-site assembled formwork or just before they are fed to the hopper of a pump for pumping fresh concrete. Once received by the fresh concrete supply device with secondary kneading function,
Add necessary chemical admixtures for concrete, other admixtures, concrete function strengthening materials, and concrete hardening accelerators. External temperature during secondary kneading (° C), fresh for secondary kneading Amount of concrete (Kg), amount of added concrete admixture for concrete (Kg), amount of other admixtures (Kg)
g), the amount of the concrete function enhancing material (Kg), the amount of the concrete hardening accelerator (Kg), the kneading time (second), the number of revolutions of the arm during the secondary kneading (.rpm), 2 The temperature (° C.) and workability (cm) of the fresh concrete during the next kneading are measured and recorded in a time series, and changes in the workability that occur during transportation are corrected to the workability of the design blend. After that, it is supplied to a hopper of a formwork or a pump truck for pumping fresh concrete, and the fresh concrete is cast at a predetermined place. The quality controlled production and construction of fresh concrete. Method. 19. A truck with an agitator or a fresh agitator manufactured in advance in a factory and transported to an on-site or secondary product production line in need thereof by an agitator truck or other method. In other ways, the load cell and other measuring and recording devices may be integrated before being directly loaded into the on-site assembled formwork, or just prior to feeding to the hopper of a fresh concrete pumping pump truck. Is a fresh concrete supply device with a secondary kneading function, which is once received and added as necessary, as a chemical admixture for concrete, other admixtures, a material for enhancing the function of concrete, and concrete hardening. When the accelerator is previously processed into a suspension / slurry with another device, the amount of each material to be added (Kg), ambient temperature (° C), and suspension time (min) 19. The method according to claim 18, wherein the viscosity, the temperature (° C.) and the like are measured and recorded, and the material processed into a slurry is added to a fresh concrete supply device having a secondary kneading function, followed by stirring. Quality controlled production and construction method of fresh concrete. 20. A fresh concrete with a secondary kneading function.
20. The quality controlled production and construction method of fresh concrete according to claim 18 or 19, wherein a single or a plurality of heat supply devices are installed and supplied.