JPH1053474A - Production of construction structure and solidifying and curing unit for concrete material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten a term of work and also to reduce a production cost by forming a precast concrete material at a construction site and solidifying and curing the precast concrete material by spraying steam having a prescribed temperature when forming the precast concrete material at the construction site. SOLUTION: A precast concrete material 2a is formed at the construction site by using a forming mold (2: a forming part for forming the precast concrete material), solidifying the forming material and thereafter working the material into a construction structure base material 6a to form a construction structure 6. Further, the precast concrete material 2a after placing the concrete in the forming mold is solidified and cured by spraying a vapor having a prescribed temperature supplied from a solidifying and curing unit 1 of the concrete material in the method for producing the construction structure. A term of work is shorten by the method because the precast concrete material is rapidly solidified at the construction site and mass-produced. The method has an advantage of requiring no transportation of the precast concrete material to the construction site and also not requiring a wide area for the precast material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a construction structure,
It relates to solidification curing of concrete material during production.

[0002]

2. Description of the Related Art Conventionally, in a construction structure, for example, a building or an apartment building, a foundation structure is manufactured at a construction site, and then concrete panels are assembled and concrete is poured together with aggregate into a concrete molding space formed by the concrete panels. It is manufactured by casting. Reinforcing bars are previously arranged in the concrete molding space.

However, according to this construction method, it takes a long time for concrete poured into the concrete molding space to be solidified, for example, about three weeks for a ceiling slab. Cannot be formed, and a long construction period is required.

[0004] Therefore, a concrete precast material (PC board) is formed at a concrete precast factory different from the construction site in recent years, and then transported to the construction site, where the concrete precast material is used as a base material for the construction structure. They are used to manufacture construction structures by bolting in.

In the concrete precast material, a reinforcing steel is placed in a concrete molding space of a pre-designed dimension, concrete is poured into the concrete molding space together with the aggregate, and the concrete is cured. After the completion of the curing, the panel of the concrete molding space is removed. Take out the concrete precast material from the molding space, deposit a large number of concrete precast materials formed in this way at the factory, and after a certain amount is deposited, transport it to the construction site with trucks etc. It is completed by bolting to the base material.

[0006] In this case, in a factory for molding a concrete precast material, steam is sprayed so that the concrete is rapidly solidified, or recently, infrared rays are irradiated.

[0007]

Conventionally, however, a large number of concrete precast materials are formed at a factory remote from a construction site and then transported to a construction site by a truck or the like. The construction cost cannot be shortened due to the high cost and the time required for transportation, and the factory requires a large site for installing concrete precast materials. There is a drawback that it causes an increase in cost.

This object has been achieved to solve the above problems. Concrete precast materials are formed at a construction site, and steam is sprayed at the time of molding to speed up solidification curing, shorten the construction period, and reduce construction time. The construction cost can be reduced, and a large area of the installation site is not required, thereby further contributing to lower construction costs.

[0009]

According to the first aspect of the present invention, a concrete precast material 2a is molded at a construction site using a molding die and solidified, and then the construction structure base material 6a is formed.
And the construction structure 6 is manufactured. When the concrete precast material 2a is solidified and cured, steam at a predetermined temperature is sprayed and solidified and cured at a construction site.

A second aspect of the present invention is a water supply tank 1d that is placed on a transportable base 1b and stores softened water, and a boiler that heats the water in the water supply tank 1d to generate steam. 1g, and a fuel tank 1f for sending fuel to the boiler 1g. The steam from 1 g of the boiler can be sprayed on a concrete material which is solidified and cured at a construction site.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIGS. 1 to 4 are simplified constitutional views showing an embodiment of a method for manufacturing a construction structure and a concrete curing unit for concrete material according to the present invention. In each of the drawings, reference numeral 1 denotes a concrete material curing unit. A hose 1 from the concrete material curing unit 1
a is extended and the solidification curing unit 1 for concrete material
Is supplied to the concrete precast material forming section 2 via the hose 1a. As shown in FIG. 2, the concrete precast material 2a formed by the precast material forming section 2 is
After being transported along the rails 3a, a railroad tie or the like is placed on the end side of the rail 3a and the rails 3a are deposited thereon. The deposited concrete precast material 2a is transported by being suspended from the support frame 5a of the crane 5 to the processing section 4, where it is assembled as a block material 4a forming a certain block.

The concrete precast material 2a deposited on the block material 4a in the working part 4 or the terminal end of the rail 3a by the support frame 5a of the crane 5 is
After being transported to the construction structure 6 at the construction site, it is fitted to the construction structure base materials 6a, 6a constituting the framework of the construction structure 6 by bolting or the like, and then jointed.

As described above, in this embodiment,
The steam from the concrete material curing unit 1 installed at the construction site is supplied to the precast material forming unit 2, and the precured material 2a thus cured is directly applied to the base material 6 a of the construction structure 6 at the construction site. The construction structure 6 is manufactured by inserting the material processed in the processing part 4 into the base material 6a as a block material 4a.

The above-mentioned concrete curing unit 1
As shown in FIGS. 3 and 4, a water softener 1c, a water supply tank 1d, a chemical injection device 1e, a fuel tank 1f, and a boiler 1g are installed on a transportable base 1b.
An outer frame panel 1h covers the water supply tank 1d, the chemical injection device 1e, the fuel tank 1f, the boiler 1g, and the like. In this case, the fuel tank 1f is provided with a window 1i on the outer frame panel 1h so as to contact the outside air. Also, on the outer frame panel 1h,
A door 1j is provided.

In FIG. 4, water such as tap water is supplied to the water softening device 1c. That is, water such as tap water from the valve 1k is supplied through the pipe 1m. The water softened by the water softening device 1c is supplied and stored in a water supply tank 1d, and is supplied from this water supply tank 1d to a boiler 1g via a pipe 1n. Fuel is supplied to the boiler 1g from a fuel tank 1f via a pipe 1o, and steam is generated by heating water supplied from a water supply tank 1d. This steam is supplied to the outside of the outer frame panel 1h via a pipe 1p. Is discharged from the hose 1a via a valve 1q provided in the hose.

The chemicals such as preservatives and antifreeze from the chemical injection device 1e are supplied to the boiler 1g together with the water from the water supply tank.

According to the concrete curing unit 1 for concrete material, as shown in FIG. 1, it is transported integrally to the construction site and installed, and then water such as tap water is supplied to the valve 1k to open the door 1j. Just by opening and igniting the boiler 1g, water such as tap water is softened by the water softener 1c, then stored in the water supply tank 1d, and then heated by the boiler 1g while being supplied to the boiler 1g. Steam is generated, and the steam from the pipe 1p passes through a motor valve 1x, a pressure reducing valve 1s, a valve 1t, a valve 1t, and a valve 1t provided in the pipe 1p.
Released from f. Therefore, the steam is sprayed onto the concrete material after the concrete and the aggregate are poured into the molding space in the precast material molding portion 2 installed at the construction site by using the hose 1a during the solidification and curing thereof, The speed of solidification curing of the concrete precast material can be increased.

In this embodiment, as shown in FIG. 4, a concrete curing unit 1
In addition to the switchboard 1u, a temperature controller 1r is provided inside h. The temperature control device 1r adjusts the pressure reducing valve 1s in accordance with the ambient temperature of the precast molding section 2 or the temperature of the entire construction site, and automatically adjusts the amount of steam blown out. Since the amount of steam is automatically adjusted corresponding to the ambient temperature of curing, solidification curing can be performed efficiently.

In the case of forming a concrete precast material in the precast material forming section 2, a frame 2d is erected on an iron plate 2c as shown in FIG. 5, and a reinforcing bar 2f is set in a forming space 2e obtained by the frame 2d. After that, 2 g of concrete is poured together with the aggregate, and a covering material 2 h such as a vinyl sheet is placed thereon.
By inserting the tip of the hose 1a inside the h and spraying the steam from the hose 1a, the steam can be efficiently supplied to the concrete 2g. Curing speed can be increased and mass production can be achieved.

As shown in FIG. 6, when the covering material 2h is covered, a simple frame 2i made of wood, steel, or resin is shown in FIGS. 7 and 8 so that the covering material 2h does not directly contact concrete. For defining the space such as the spacers 2j and 2k are arranged around the mold, and covered with the covering material 2h from above, to secure a space for steam inside, and the steam sufficiently spills over the whole. To do. In this case, depending on the case, if the end of the covering material 2h is pressed by a corner 2m or a weight 2m such as a steel material, it is possible to prevent the sheet from being turned up by wind or the like, and to prevent the outside air from entering.

Further, as shown in FIG. 7, when there are two or more locations where steam curing is performed, a hose 1a may be branched in the middle so that the remote locations can be cured simultaneously.

As a method of covering the covering material 2H, each molding die may be covered one by one, and a hose 1a may be inserted into each of the molding dies. Alternatively, as shown in FIG. 7, several molding dies are collectively covered with one covering material. You may.

Further, as shown in FIG. 9, the outer peripheral partition 2n is protruded from the mold, and is covered with a lid 2q having a hinge 2p. Good.

As shown in FIG. 10, a lid 2r for covering the entire mold may be used, and steam may be sprayed from a hose 1a attached to the lid 2r. In short, any configuration may be used as long as it does not allow the sprayed vapor to escape.

It should be noted that the concrete curing unit 1 of the present invention is not only applicable to the case where a concrete precast material is formed, but also the case where the concrete solidification is performed using the concrete panel of the construction structure itself. For curing, it can be adopted by spraying steam. The outer frame panel 1h may be omitted to expose the fuel tank, boiler, and water supply tank. However, in this case, a partition wall shall be provided between the fuel tank and the boiler at the request of laws and regulations.

[0026]

According to the first aspect of the present invention, a concrete precast material is molded at a construction site using a molding die, solidified, and then incorporated into a construction structural base material to produce a construction structure. When solidifying the concrete precast material, the concrete precast material can be rapidly solidified at the construction site by spraying steam at a predetermined temperature and solidifying and curing at the construction site, and mass production of the concrete precast material can be achieved. The construction period can be shortened, and the transportation of concrete precast materials to the construction site is not required as in the past, only the transportation of concrete and aggregates. It is not necessary to consider the installation area of the vast area of It will contribute to.

According to the second aspect of the present invention, a water supply tank which is placed on an operable base and stores softened water,
A boiler that generates steam by heating the water in this water tank,
A fuel tank for sending fuel to the boiler is provided, and steam from the boiler can be sprayed on concrete material that is solidified and cured at a construction site. Since the unit is unitized, when solidifying and curing concrete material at the construction site, steam and spray can be provided quickly only by installing this unit at the construction site, thereby significantly shortening the construction period.

[Brief description of the drawings]

FIG. 1 is a simplified configuration diagram for explaining a method of manufacturing a construction structure and a concrete curing unit for a concrete material according to the present invention.

FIG. 2 is a perspective view for explaining a part of the present invention.

FIG. 3 is a perspective view showing an embodiment of a concrete material curing unit of the present invention.

FIG. 4 is a plan view showing one embodiment of a concrete material curing unit of the present invention.

FIG. 5 is a cross-sectional view for explaining a part of the present invention.

FIG. 6 illustrates a part of the present invention.

FIG. 7 illustrates a part of the present invention.

FIG. 8 illustrates a part of the present invention.

FIG. 9 illustrates a part of the present invention.

FIG. 10 illustrates a part of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 solidification curing unit for concrete material 2 precast material molding unit 4 processing unit 6 construction structure 6a base material 1b base 1c water softener 1d water supply tank 1e chemical injection device 1f fuel tank 1g boiler 1h outer frame panel

Claims (2)

[Claims] When a concrete precast material is molded at a construction site using a mold and solidified, the concrete precast material is incorporated into a construction structural base material to produce a construction structure, and when the concrete precast material is solidified, A method for manufacturing a construction structure, comprising: spraying steam at a predetermined temperature onto a concrete precast material after casting concrete in a molding die at a construction site to solidify and cure. 2. A water supply tank, which is placed on a transportable substrate and stores softened water, a boiler that heats the water in the water supply tank to generate steam, and a fuel tank that sends fuel to the boiler. Wherein the steam from the boiler can be sprayed onto a concrete material which is solidified and cured at a construction site.