JP2002236723A - Concrete work system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain and manage concrete workability in placing concrete to be an appropriate condition and also to perform all concrete work from mixing and kneading toe formwork removal under consistent manufacturing control and responsibility by appropriately grasping time difference, environmental change, etc., from concrete mixing and kneading to actual concrete placing. SOLUTION: A site terminal machine and a mill terminal machine are connected to each other in a communicable way through a data transmissible line network. This site terminal machine transmits mixing design information including the strength condition of ready-mixed concrete and work conditions, and work proceeding state to the mill terminal machine, and the mill terminal machine performs mixing design of the ready-mixed concrete and transmits a table of formulation for concrete raw material and information on concrete work to the site terminal machine. A freshly-mixed concrete mill measures concrete and kneads the concrete on a concrete placing day and ships ready- mixed concrete at a time corresponding to a scheduled work time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete construction system, and more particularly, to controlling the workability of ready-mixed concrete during casting in an appropriate state, and mixing and kneading the ready-mixed concrete. The present invention relates to a concrete construction system that performs all concrete construction from demolition to demolding under consistent manufacturing control and responsibility.

[0002]

2. Description of the Related Art Generally, in concrete construction work in construction and civil engineering work, ready-mixed concrete mixed with a ready-mixed concrete manufacturer (hereinafter referred to as a "mixed concrete manufacturer") is poured into a formwork after arrangement of reinforcing bars. It is accomplished by doing. The construction company requests the ready-mixed concrete manufacturer to mix-design based on the design standard strength and various construction specifications described in the architectural design documents, and the ready-mixed concrete manufacturer
Perform formulation design and material cost estimation, and conclude a manufacturing and delivery contract with a construction company.

FIG. 8 illustrates a conventional construction mode. In the conventional construction form, a ready-mixed concrete manufacturer performs a blending design based on a request from a construction company, submits a blending report, a multiplication report, and the like to the construction company, and receives an order from the construction company. The scheduled concrete placement date is determined according to the progress of the reinforcement and formwork construction, and is notified to the ready-mixed concrete manufacturer. Ready-mixed concrete manufacturers weigh concrete materials such as cement, water, aggregates and admixtures, knead the ready-mixed concrete, and ship them by trucks for transporting ready-mixed concrete (truck agitator, mixer truck, etc.) It is carried to the construction site and undergoes a prescribed acceptance inspection by the construction company at the time of unloading. After the ready-mixed concrete delivery document is submitted to the construction company, the ready-mixed concrete is handed over to a pumping company that pumps the ready-mixed concrete (hereinafter referred to as a “mixed concrete pumping company”). The ready-mixed concrete pumper pumps the ready-mixed concrete into the planned construction section, and the construction company and the workers of the ready-mixed concrete pumper cooperate to drive the ready-mixed concrete into the formwork. After the concrete pouring and compaction work is completed and a predetermined curing period has elapsed, the formwork is dismantled, and as a product inspection, an on-site inspection on the dimensional accuracy of the concrete skeleton is performed. A portion of the ready-mixed concrete brought in at the site is separately cured as a specimen for strength test, and after a predetermined period of time, the strength test of the specimen is carried out by a public organization, etc. The expression indicates the expected strength of the concrete body.

[0004]

As described above, in the conventional concrete construction, the concrete pouring process is performed under the cooperation of the ready-mixed concrete manufacturer, the ready-mixed concrete pumping company and the construction company. . However, actual concrete work involves delays in the arrival of trucks at the site due to traffic congestion, prolonged standby time in the site of trucks due to delays in concrete placement work, and the physical properties of ready-mixed concrete due to rapid weather fluctuations. It is substantially affected by unpredictable causes, such as changes.

[0005] For example, the fluidity of ready-mixed concrete changes due to the time difference from mixing and kneading to casting in a form, weather fluctuations, and the like. Therefore, ready-mixed concrete manufacturers predict the transport time of ready-mixed concrete and the like. The composition is determined or the composition of the concrete raw material is appropriately corrected according to the situation. However, prolonged transport time due to traffic congestion, delays in the casting process after delivery of ready-mixed concrete to the ready-mixed concrete conveyer, sudden changes in weather at construction sites, delays in site work due to delays in site work, etc. It is difficult to properly cope with the situation peculiar to the construction site, and there are many cases where the workability of concrete at the time of casting is deteriorated due to such causes.

[0006] Further, since the conventional concrete construction form is carried out under the cooperation of a construction company, a ready-mixed concrete manufacturer and a ready-mixed concrete pumping company, a consistent construction responsibility over the entire concrete placing process. The location is not always clear. For this reason, if a defect or the like occurs in the concrete body after the formwork is dismantled, or if a defective construction or the like is found at a later date, the location of the construction responsibility must be virtually unclear.

The present invention has been made in view of the above circumstances, and an object of the present invention is to appropriately grasp the time difference from the mixing and kneading of concrete to the actual concrete placement and environmental changes and the like, and to achieve the purpose. It is an object of the present invention to provide a concrete construction system capable of maintaining and managing concrete workability in an appropriate state at the time of setting.

[0008] Another object of the present invention is to provide a concrete construction system capable of performing all concrete works from mixing and kneading of concrete to demolding under consistent manufacturing control and responsibility.

[0009]

In order to achieve the above object, a concrete construction system according to the present invention comprises:
And a factory terminal capable of transmitting and receiving data, which is located at a ready-mixed concrete factory (hereinafter, referred to as a “mixed concrete factory”), wherein the on-site terminal and the factory terminal are connected via a network capable of transmitting data. Connected so that they can communicate with each other. The on-site terminal transmits the mixing design information including the strength and construction conditions of the ready-mixed concrete to the manufacturing terminal, and the manufacturing terminal mixes and designs the ready-mixed concrete, and mixes the concrete raw materials and the concrete work. Is transmitted to the on-site terminal. The ready-mixed concrete factory performs weighing and kneading on the day of placing concrete, and ships ready-mixed concrete at a time corresponding to the scheduled construction time. The actual progress of concrete placement and the difference in concrete placement time are sent from the on-site terminal to the factory terminal as current construction information, and the ready-mixed concrete factory sends the ready mixed concrete worker Ready-mixed concrete will be shipped at the appropriate time after correcting the mix as necessary or adjusting the manufacturing process in order to properly correct the abilities.

[0010] According to such a configuration, in the case of delay of concrete placing operation, delay of arrival of the ready-mixed concrete transporting vehicle at the site, congestion in the site of the transporting vehicle, etc., the ready-mixed concrete plant is operated at the site terminal. Based on the information sent from the machine to the terminal of the factory, correct and mix the ready-mixed concrete or adjust the ready-mixed concrete shipment promptly and appropriately, and appropriately manage or control the workability of the ready-mixed concrete during casting. Can be.

[0011] Preferably, the information on the concrete construction transmitted from the terminal of the mill to the terminal of the site includes the steps, man-hours and construction costs of the concrete construction, and is transmitted from the terminal of the site to the terminal of the mill. The current construction information includes information on the condition of reinforcing bars and formwork, weather conditions at the construction site, shortening or delaying of concrete placement time, arrival time of the truck at the site, and further information on standby time of the truck at the site. If desired
The on-site terminal may request or instruct the factory terminal for shipping time adjustment or compounding correction.

The present invention also provides a concrete construction system for producing ready-mixed concrete, pumping the ready-mixed concrete, and placing the ready-mixed concrete, wherein a site terminal capable of transmitting and receiving data is arranged at the construction site. , A factory terminal capable of transmitting and receiving data is placed in a ready-mixed concrete factory, and a site terminal and a factory terminal are connected so as to be able to communicate with each other via a network capable of transmitting data. Including the recipe design information from the on-site terminal to the factory terminal,
Based on the mixing design conditions, mix and mix ready-mixed concrete, send a mixing table of concrete raw materials and information on concrete work from the terminal in the mill to the on-site terminal, and display the progress of the concrete work when placing concrete. Transmitted from the on-site terminal to the factory terminal, based on the information obtained from the factory terminal, adjusted the blending and shipping of the ready mixed concrete, and pumped and poured the ready mixed concrete from the ready concrete factory side. Provide a concrete construction system characterized by management. According to the above configuration of the present invention, the progress of the concrete work can be managed from the ready-mixed concrete factory side, so that the ready-mixed concrete factory or an administrator who manages the ready-mixed concrete factory itself (hereinafter, referred to as “ready-mix factory etc.”) ) Can manage the entire concrete work.

Preferably, the ready-mixed concrete factory or the like manages or directly carries out on-site acceptance inspection of ready-mixed concrete, collection of a sample for a strength test, dismantling of a mold, inspection of the dimensional accuracy of a concrete body after dismantling a mold, and the like. I do. With this configuration, the entire concrete work can be performed under consistent manufacturing control and construction responsibility, so even if a defect or defect in the concrete frame is found after the formwork is dismantled, Location is clarified. In addition, since the entire concrete work can be centrally managed, the distribution mechanism of the ready-mixed concrete can be simplified, and the cost of the concrete work can be reduced.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Figure 1
1 is a system configuration diagram showing an overall configuration of a concrete construction system according to the present invention.

As shown in FIG. 1, a computer terminal of a construction company which is a purchaser of a ready-mixed concrete is connected to a computer terminal of a ready-mixed concrete manufacturer via a general public network such as a telephone network. The terminal of the construction company is composed of an electronic data processing device such as a personal computer capable of transmitting and receiving data, and is arranged at a site office of each construction site. The ready-mixed computer manufacturer's computer terminal (hereinafter referred to as a factory terminal) is, for example, a personal computer dedicated to the present system or a general-purpose computer terminal for compounding design and production management. Each terminal, as shown in FIG.
Input devices such as pointing devices and keyboards,
An image display device such as a liquid crystal display, an output device such as a printer, a storage device including a portable storage medium, a data processing CPU (arithmetic processing device), and the like are provided. Factory terminals
It is connected to a database that stores various past data related to formulation design, price management, production management, shipping adjustment, and the like.

When requesting a ready-mixed concrete manufacturer to perform a blending design, the on-site terminal sends the design conditions necessary for the blending design to the factory terminal, and the ready-mixed concrete manufacturer transmits the ready-mixed concrete based on the received data. Perform a blending design. At least the design reference strength of the concrete is transmitted from the on-site terminal to the factory terminal as the blending design condition.

FIG. 4 shows an example of an input screen for a recipe design request displayed on the display of the on-site terminal.
The input screen includes design strength input fields such as concrete design standard strength and nominal strength, as well as scheduled concrete placement date, construction schedule information such as rebar and formwork construction work, concrete quantity, construction site location, and building And an estimate condition input column (not shown) for inputting various conditions for estimating and integrating the amount of concrete work for integrating concrete construction costs. The input screen further includes input fields that can be entered as desired, such as slump value, maximum size of coarse aggregate, cement type, water-cement ratio, admixture or admixture type and mixture ratio, standard specifications described in the design documents, or Includes additional condition input fields such as special specifications. Various information such as strength conditions, construction conditions, and additional conditions input via the input screen are transmitted from the on-site terminal to the factory terminal.

The ready-mixed concrete manufacturer mixes and designs the ready-mixed concrete based on the various conditions received from the on-site terminal, mixes a report including a mix of concrete raw materials, a concrete work schedule and man-hours table, and a concrete work estimate. Etc. are transmitted from the factory terminal to the site terminal. FIG. 5 exemplifies a recipe report transmitted from the factory terminal to the site terminal. The content of the blending report itself is substantially the same as the description items of the blending design report generally used in building works. The construction company orders a concrete construction work from the ready-mixed concrete manufacturer based on the compounding report received from the terminal of the factory, and concludes a construction contract.

The construction company carries out rebar arrangement work and formwork work such as building a formwork by the scheduled date of concrete placement, and the ready-mixed concrete manufacturer weighs and measures ready-mixed concrete on the scheduled day of concrete placement. Kneading is performed, and shipment of ready-mixed concrete starts at a time corresponding to the scheduled construction time.

FIG. 2 is a system configuration diagram showing an operation state of a concrete construction system in concrete placing work. The factory terminal receives traffic congestion information and weather information from a third information organization, ships ready-mixed concrete so that trucks such as truck agitators arrive at the site at the scheduled time, and manufactures ready-mixed concrete. Information and shipping information are transmitted to the on-site terminal. If there is a specific reason for the transportation of ready-mix concrete that is longer than expected due to traffic congestion, or the weather conditions are significantly different from the conditions at the time of the blending design, the engineer of the ready-mixed concrete plant will Consider correction. When a technician of a ready-mixed concrete factory corrects the mix of ready-mixed concrete, information on the mix correction is sequentially transmitted from the mill terminal to the site terminal.

At the same time, the ready-mixed concrete manufacturer's
From the on-site terminal, the actual arrangement of the reinforcing bars and the formwork, the weather conditions at the construction site, and the like are transmitted to the factory terminal. In addition, in actual construction work, there is a case where it is inevitable that the reinforcement work and the formwork work must be performed simultaneously during the concrete placing work, so the progress of such related works will be monitored from the on-site terminal equipment. It is sequentially transmitted to the factory terminal.

After the first truck arrives at the construction site, unloading and pumping of ready-mixed concrete are started. At the time of unloading, a ready-container delivery note as illustrated in FIG. 6 is transmitted from the factory terminal to the site terminal. The ready-mixed concrete delivery document may be submitted again to the construction company by a ready-mixed concrete manufacturer's construction staff at a later date. When unloading ready-mixed concrete, the prescribed inspection and sampling of the construction site, for example, site inspection such as slump value of ready-mixed concrete, sampling of strength test and production of test specimen, etc., are the site supervisor or site manager of the construction company. In the construction site by ready-mixed concrete manufacturers in the presence of

The pumping, concrete pouring, compaction, and curing steps are also performed under the control of the ready-mixed concrete manufacturer, and the skilled workers of each work belonging to or commissioned to the ready-mixed concrete manufacturer take charge of each work. . The worker in charge of the ready-mixed concrete manufacturer is responsible for the concrete placement time that can be caused by various factors such as the actual condition of the reinforcing bars and formwork, the capacity of the concrete construction worker, the number of workers, weather fluctuations, and the arrival time difference of trucks Is shortened or delayed as the current construction information relating to the progress of the concrete construction, and is sequentially transmitted from the on-site terminal to the factory terminal during the construction. The factory terminal ships the ready-mixed concrete after correcting the composition as necessary in order to appropriately correct the workability of the ready-mixed concrete at the time of the actual casting. If desired, the site staff may specifically request or indicate the compounding correction or shipping time from the site terminal to the factory terminal.

In the case of delay of concrete placing operation, traffic jam at the site of the transport vehicle, etc., the worker in charge of the ready-mix concrete manufacturer sends the information of the work delay or the traffic jam at the site from the site terminal to the factory terminal. Etc., and the ready-mixed concrete mill
Adjust the ready-mixed container shipping time appropriately.

With the progress of the concrete placing operation, at the time when the amount of concrete until the completion of the placement of the scheduled construction section can be estimated, the worker in charge of the ready-mixed concrete manufacturer sends information such as the remaining amount of the casting from the on-site terminal. Send to factory terminal. The factory terminal adjusts the final scheduled shipment amount as necessary and adjusts the shipment as necessary in order to minimize the amount of waste of the ready-mixed concrete.

After the concrete placing work is completed, a predetermined curing period is secured, and then the formwork dismantling work is performed under the control of the ready-mixed concrete manufacturer. The repair work after the dismantling of the formwork may be performed under the control of a ready-mixed concrete manufacturer, or may be performed under the direct control of a construction company as in the past. As a quality inspection after the formwork is dismantled, construction errors of the concrete skeleton are performed by a ready-mixed concrete manufacturer in the presence of a construction company site supervisor or a site manager.

The specimens collected during the concrete placing work were subjected to a strength test at a predetermined test site at a predetermined time, and the results of the strength test were reported as a concrete strength test report as shown in FIG. Is transmitted from the device to the on-site terminal. The concrete strength test report may be submitted later to the construction company from a ready-mixed concrete manufacturer's construction staff at a later date.

Based on the results of the quality test and the strength test, when it is confirmed that the concrete body after demolding has the expected quality and performance, the construction company and the ready-mixed concrete manufacturer enter All construction work under the concluded construction contract is effectively terminated.

FIG. 3 is an overall work flow diagram showing a concrete construction form implemented by such a concrete construction system. According to the construction system described above, the site supervisor or the person in charge of the construction site requests the blending design of the ready-mixed concrete, receives the blending report from the ready-mixed concrete manufacturer, and after contracting with the ready-mixed concrete manufacturer, Except for managing the rebar arrangement and formwork construction, it is sufficient to witness the acceptance inspection on the day of concrete placement and the product inspection after the formwork is dismantled. Virtually all concrete work, including mix design, weighing / mixing, transportation / unloading, pumping, driving / compacting / curing, and demolition of formwork, is performed under the consistent management and construction responsibility of the ready-mixed concrete manufacturer Is done.

The workability of concrete that is actually cast at the construction site includes the time difference between kneading and placing due to the variation in the transport time of ready-mixed concrete, the difference in the degree of progress between the on-site work process and the ready-mixed concrete manufacturing process, and However, due to the difference in the environment between the ready-mixed concrete production plant and the construction site, a situation different from the initial construction plan may occur. However, according to the concrete construction system, the actual construction information of the construction site is used for the ready-mixed concrete production plant. Since it is fed back to the process, it is possible to adjust the blending and shipping time so that the physical properties of the concrete at the time of casting always exhibit proper workability.

Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various modifications may be made within the scope of the present invention described in the appended claims. It is needless to say that the modification or the modification is also included in the scope of the present invention.

For example, in the above embodiment, the entire concrete work is performed under the construction responsibility and management of the ready-mixed concrete manufacturer, but the management of other organizations or organizations having the ability to generally perform the concrete work is performed. The above construction system may be operated below.

In the above embodiment, the on-site terminal and the manufacturing terminal are connected using the public line network.
The site terminal and the factory terminal may be connected using a dedicated network for construction work.

[0034]

As described above, according to the above configuration of the present invention, the time difference from mixing and kneading of concrete to the actual concrete placement and environmental changes are properly grasped, and the concrete worker at the time of placing is concretely grasped. Provided is a concrete construction system capable of maintaining and managing the ability in an appropriate state.

Further, according to the present invention, there is provided a concrete work system capable of performing all concrete works from mixing and kneading of concrete to demolding under consistent manufacturing control and responsibility.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing an overall configuration of a concrete construction system according to the present invention, and illustrates a system operation mode at the time of blending design.

FIG. 2 is a system configuration diagram showing an overall configuration of a concrete construction system according to the present invention, and illustrates a system operation mode at the time of placing concrete.

FIG. 3 is an overall work flow diagram showing a work form that can be performed by the concrete work system shown in FIGS. 1 and 2;

FIG. 4 is a front view partially showing a formulation design request input screen displayed on a display of a site terminal.

FIG. 5 is a front view partially showing a display screen of a blending report transmitted from a factory terminal to a site terminal.

FIG. 6 is a front view partially showing a display screen of a ready-made concrete delivery note transmitted from a manufacturing terminal to a site terminal.

FIG. 7 is a front view partially showing a strength test result report screen transmitted from a factory terminal to a site terminal.

FIG. 8 is a work flow diagram showing an overall construction form of a conventional concrete construction.

Claims (6)

[Claims] 1. An on-site terminal capable of transmitting and receiving data disposed at a construction site, and a mill terminal capable of transmitting and receiving data disposed at a ready-mixed concrete factory, wherein the on-site terminal and the mill terminal are provided. Are connected so as to be able to communicate with each other via a data transmission-capable network, and the on-site terminal transmits mixing design information including concrete strength conditions and construction conditions to the factory terminal, and the factory terminal The machine designs and mixes ready-mixed concrete, transmits concrete mix information including the concrete mix table and concrete work information to the on-site terminal device. The difference with the present work information is transmitted from the on-site terminal to the factory terminal as the current construction information. A concrete construction system characterized in that, in order to appropriately correct the workability of ready-mixed concrete, the mixed concrete is adjusted as necessary or the production process is adjusted, and then the ready-mixed concrete is shipped at an appropriate time. 2. The concrete construction system according to claim 1, wherein the concrete construction information includes a concrete construction process, man-hours, and construction costs. 3. The current construction information includes progress of reinforcement and formwork construction, weather conditions at a construction site, shortening or delay of concrete placing time, arrival time of a ready-mixed concrete transport vehicle, and a transport vehicle. The concrete construction system according to claim 1, further comprising information on a standby time in the site. 4. The apparatus according to claim 1, wherein the on-site terminal includes means for requesting or instructing the factory terminal for shipping time adjustment or compounding correction. The concrete construction system described. 5. The production of a ready-mixed concrete,
In a concrete construction system that performs pumping of ready-mixed concrete and casting of ready-mixed concrete, on-site terminals that can transmit and receive data are placed at the construction site, and the terminals that can transmit and receive data are ready-mixed concrete mills. And the terminal of the factory and the terminal of the factory are communicably connected via a network capable of transmitting data, and the mix design information including the concrete strength conditions and construction conditions is transmitted from the site terminal to the factory terminal. To mix the ready-mixed concrete based on the mix design conditions, and send the mix table of the concrete raw materials and information on the concrete work from the terminal at the factory to the terminal at the site. The progress status is transmitted from the on-site terminal to the factory terminal, and the Based on the information obtained from the machine, the concrete construction system characterized by adjusting the formulation and delivery of ready-mix concrete, manages the pumping and pouring of ready-mix concrete from the side of the ready-mix concrete production plants. 6. The ready-mixed concrete factory manages or directly implements on-site inspection of ready-mixed concrete, collection of a sample for a strength test, dismantling of a formwork, and dimensional accuracy inspection of a concrete body after dismantling a formwork. The concrete construction system according to claim 5, wherein