JP2909618B2 - Concrete curing frame and concrete curing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a concrete curing frame and a concrete curing method. More specifically, the present invention relates to a concrete curing frame and a concrete curing method capable of saving steam and improving a working environment in concrete curing work in the production of a concrete secondary product such as a concrete block.

[0002]

2. Description of the Related Art In the production of a concrete secondary product such as a concrete block, concrete is poured into a formwork, cured for a certain period of time, and when the moisture of the concrete is removed and hardened to a certain extent, the mold is removed. During this curing, in order to accelerate the hardening of the concrete, a sheet made of a synthetic resin is covered so as to wrap the formwork, and steam is fed into the sheet. As another means, there has been a method in which a large-sized steam room is formed, a formwork is carried into the steam room, and concrete is similarly heated and cured with steam.

[0003]

However, the above-mentioned conventional method has the following problems. (A) In the method using a sheet, since steam escapes from a gap between the sheets, it is necessary to continuously send steam during curing. Accordingly, a large amount of steam is wasted, and the operation and maintenance cost is increased. Further, since the steam is constantly fed, a large amount of dew is generated in the sheet. For this reason, since the sheet is covered with water and oil and becomes dirty, the working environment is not good, for example, soiling clothes during handling.

(B) In the method using a steam room, a large capital investment is required to form the steam room.
In addition, since the steam room is fixed, it is necessary to carry the mold for use, but it is difficult to use the mold because there are various restrictions on the size and shape of the mold.

[0005] The present invention solves the above-mentioned problems, and in the concrete curing operation in the production of concrete secondary products such as concrete blocks, a concrete curing frame capable of reducing the waste of steam and improving the working environment. The purpose is to provide. It is another object of the present invention to provide a concrete curing frame which is relatively inexpensive and easy to use without being limited by the size and shape of the mold.

[0006]

Means of the present invention taken to solve the above problems are as follows. According to the first aspect of the present invention, there is provided a concrete curing frame used in the manufacture of a secondary concrete product, which can be disassembled and assembled. And a plurality of frame members whose upper portion is substantially closed.

According to a second aspect of the present invention, there is provided a concrete curing frame used in the production of a concrete secondary product, wherein the curing frame is disassembled and assembled.
The assembled state includes a plurality of frame members in which a lower portion is opened and a side portion and an upper portion are substantially closed, and the frame member includes a lower frame member including a side member, and a side member. And an upper frame member having an upper surface member.

In the third invention, the concrete member according to the first or second invention, wherein the frame member has substantially the same shape, and the side member is formed to diverge toward the joint surface side. It is a frame.

According to a fourth aspect of the present invention, there is provided a concrete curing method according to the second or third aspect, wherein a guide member for facilitating positioning when the upper frame member is placed on the lower frame member is provided. It is a frame.

According to a fifth aspect of the present invention, there is provided the concrete curing frame according to the first to fourth aspects, wherein a running means is provided at the bottom of the frame member.

According to a sixth aspect of the present invention, there is provided a method for curing concrete in the production of a concrete secondary product, which can be disassembled and assembled, and in the assembled state, the lower portion is open and the side and upper portions are open. Moving the plurality of frame members, which are substantially in a closed state, to an installation location of a mold for manufacturing a secondary concrete product, assembling the frame member so as to house the mold inside, a frame member Sending steam into it,
Concrete curing method.

(Operation) In the production of a concrete secondary product, concrete is poured into a formwork, and then the formwork is housed inside, and frame members are assembled to form a concrete curing frame. Steam is fed into the concrete curing frame, and when the temperature inside the frame reaches a required temperature, the steam supply is stopped and left for a required time. As a result, the concrete in the mold inside the frame is heated and moisture is released, and the concrete hardens in a relatively short time, and the mold can be removed.

[0013] Since the side and the top of the concrete curing frame are closed and the inside of the frame is substantially closed, the steam fed into the inside of the frame does not easily come off. Therefore, even if the supply of steam is stopped when the steam fills the inside of the frame and reaches the required temperature, the temperature inside the frame does not decrease rapidly.
As a result, waste of steam can be reduced, and operation and maintenance costs can be reduced.

In the case where the frame member includes a lower frame member having a side member and an upper frame member having a side member and an upper surface member, even if the frame member is large, it is disassembled into small pieces. Since it is possible, it is convenient without bulk when storing or transporting.

In the case where the frame member has substantially the same shape and the side member is formed so as to widen toward the joint surface side, another frame member is provided on the outer surface side of the side surface portion and the upper surface portion of the frame member. Can be overlapped so that the side surface portion and the inner surface side of the upper surface portion are aligned. Therefore, it is convenient without bulk when storing or transporting.

In the case where a guide member for facilitating the positioning when the upper frame member is mounted on the lower frame member is provided, the positioning can be easily performed. Mounting work can be done quickly.

In the case where the running means is provided at the bottom of the frame member, the movement of the frame member or the concrete curing frame can be easily performed, and the fine adjustment of the installation position is easy, so that the workability is excellent. I have.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. 1 is a perspective view showing an embodiment of a concrete curing frame according to the present invention, FIG. 2 is a perspective view of an upper curing frame, FIG. 3 is a perspective view of a lower curing frame, and FIG. It is explanatory drawing which shows the structure of a skirt part.

Reference numeral A denotes a concrete curing frame, which includes two upper curing frames 1 and two lower curing frames 2. The structure of the upper curing frame 1 will be described with reference to FIG. The upper curing frame 1 includes rectangular side members 11 and 12 having one ends connected at a right angle, and a right triangle triangular upper surface member 13 having upper sides of these side members 11 and 12 as two sides. The side members 11, 12 and the upper surface member 13 are each framed by a metal frame member 10. A FRP sealing plate 14 is stretched over the window formed by the frame material 10.

In the vicinity of three corners of the frame member 10 of the upper surface member 13, a U-shaped foldable hanging bracket 15 is provided. A thermometer 16 is provided near the front end of the side member 11 so that the temperature inside the frame can be viewed from the outside. The rubber-shaped sealing member 1 is formed over the entire length of the
7 is attached. The upper curing frame 1 shown in the drawing
The other upper curing frame 1 that is paired with
Is not provided.

At the center of the side edge of each of the side members 11, 12, a bolt attachment portion 18 used for attaching to the other upper curing frame 1 is provided. The bolt attachment portion 18 is a side member 1
Outer opening 181 provided on the outer surface side of frame material 10 of 1 and 12
It has. The joining face plate 182 is 45 degrees from the outer surface of the frame material 10.
The bolt opening 183 is provided corresponding to the outer opening 181 (see FIG. 5). At the lower part on the outer surface side of the side members 11 and 12, attachment metal fittings 19 (see FIG. 6) are provided at six positions in the middle of the vertical member of the frame member 10. The mounting bracket 19 has a bolt hole (not shown) in the bottom plate.

The structure of the lower curing frame 2 will be described with reference to FIG. The lower curing frame 2 includes rectangular side members 21 and 22 having one ends connected at right angles. Side members 21, 2
2 are each framed by a metal frame member 20. An FRP sealing plate 24 is stretched over the window formed by the frame member 20.

Casters 23, which are running means, are provided at the lower part of the outer surface side of the side members 21 and 22 at seven positions corresponding to the vertical members of the frame member 20. A rubber skirt 25 is provided under the side members 21 and 22 over substantially the entire length. The skirt 25 closes a gap between the lower sides of the side members 21 and 22 and the installation surface. Side members 21, 22
A guide member 26 and a mounting bracket 29 are provided at the upper portion on the outer surface side of. The guide members 26 are provided at three locations near the connection corners of the side members 21 and 22 and at the respective distal ends. A guide slope 260 is provided inside the upper portion of the guide member 26.

Attachment fittings 29 are provided at six intermediate positions of the vertical members of the frame member 20 corresponding to the attachment fittings 19. The mounting bracket 19 has a bolt hole 290 in the upper plate. A bolt attachment portion 28 having the same structure as that of the bolt attachment portion 18 is provided at the center of the tip side of the side members 21 and 22. Further, a rubber seal member 27 is attached to the upper surface and the tip side of the side members 21 and 22. The other lower curing frame 2 that is paired with the lower curing frame 2 shown in the drawing is not provided with the seal member 27.

(Operation) FIG. 5 is a perspective view of an essential part showing an attachment structure between upper curing frames, FIG. 6 is a perspective view of an essential part showing an attachment structure of an upper curing frame and a lower curing frame, and FIG. It is a perspective view which shows the accommodation structure of curing frames. The operation of the present embodiment will be described with reference to FIGS. In the production of a concrete secondary product such as a concrete block, concrete is poured into a formwork, and then the formwork is accommodated therein, and the upper curing frames 1, 1 and the lower curing frames 2, 2 are assembled to form concrete. A curing frame A is formed.

First, the lower curing frames 2 and 2 are moved to a position surrounding the formwork, and the bolt attachment portion 28 is attached via the bolt B1, and the sealing member 27 is brought into close contact to form a square tube. (See FIG. 5). At this time, the lower curing frame 2,
2 can be smoothly moved by the action of the casters 23. Next, the upper curing frame 1 is lifted by a hanging machine such as a crane, and is placed on the lower curing frame 2. At this time, the bottom of the upper curing frame 1 is guided by the guide slopes 260 of the respective guide members 26 of the lower curing frame 2 so that the placement is performed smoothly.

The upper curing frame 1 and the lower curing frame 2 which have been placed are bolted to the fittings 19 and 29 and bolted to fix them. Next, the other upper curing frame 1 is similarly replaced with the lower curing frame 2
Place on top of and secure. Also, the upper curing member 1
They are also fastened and fixed via the bolt B1, and the sealing member 17 is brought into close contact (see FIG. 5).

Steam is fed into the concrete curing frame A, and when the inside of the frame reaches a required temperature, the supply of steam is stopped and left for a required time. As a result, the concrete in the mold inside the frame is heated and moisture is released, and the concrete hardens in a relatively short time, and the mold can be removed.

The side of the concrete curing frame A and the upper portion thereof are closed, and the inside of the frame is almost in a sealed state, so that the steam fed into the inside of the frame does not easily come off. Therefore, even if the supply of steam is stopped when the steam fills the inside of the frame and reaches the required temperature, the temperature inside the frame does not decrease rapidly. As a result, waste of steam can be reduced, and operation and maintenance costs can be reduced.

Since the upper curing frames 1 and 1 have substantially the same shape and the side members 11 and 12 are formed so as to expand toward the joint surface side, as shown in FIG. Can be repeated. Also, since the lower curing frames 2 and 2 have the same shape and the side members 21 and 22 are formed so as to expand toward the joint surface side, they can be similarly stacked. Therefore, it is convenient without bulk when storing or transporting. The present invention is not limited to the illustrated embodiment. For example, the shape of the concrete curing frame A may be a hemispherical shape or a square shape having a circular, elliptical, or polygonal upper surface. Various modifications are possible within the description of the range.

[0031]

The present invention has the above configuration and has the following effects. (A) Since the side and the upper part of the concrete curing frame are closed, and the inside of the frame is almost in a sealed state, the steam fed into the inside of the frame does not easily come off. Therefore, even if the supply of steam is stopped when the steam fills the inside of the frame and reaches the required temperature, the temperature inside the frame does not decrease rapidly. As a result, waste of steam can be reduced, and operation and maintenance costs can be reduced.

(B) When the frame member includes a lower frame member having a side member and an upper frame member having a side member and an upper member, the frame member is large. Since it is small and can be disassembled, it is convenient without being bulky during storage and transportation.

(C) In the case where the frame member has substantially the same shape and the side surface member is formed so as to diverge toward the joint surface side, the outer side of the side surface portion and the upper surface portion of the frame member has other parts. The frame members can be overlapped so that the side surface portions and the inner surface side of the upper surface portion are aligned. Therefore, it is convenient without bulk when storing or transporting.

(D) In the case where a guide member for facilitating the positioning when the upper frame member is placed on the lower frame member is provided, the positioning can be easily performed. The attachment work of the frame member can be performed quickly.

(E) In the case where the running means is provided at the bottom of the frame member, the movement of the frame member or the frame for concrete curing can be easily performed, and the fine adjustment of the installation position is easy, so that the workability is improved. Are better.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a concrete curing frame according to the present invention.

FIG. 2 is a perspective view of an upper curing frame.

FIG. 3 is a perspective view of a lower curing frame.

FIG. 4 is an explanatory view showing a structure of a caster portion and a skirt portion of a lower curing frame.

FIG. 5 is a perspective view of an essential part showing an attachment structure between upper curing frames.

FIG. 6 is an essential part perspective view showing an attachment structure of an upper curing frame and a lower curing frame.

FIG. 7 is a perspective view showing an accommodation structure of upper curing frames.

[Explanation of symbols]

 A Concrete Curing Frame 1 Upper Curing Frame 10 Frame Material 11, 12 Side Member 13 Top Member 14 Sealing Plate 15 Hanging Bracket 16 Thermometer 17 Sealing Member 18 Bolt Attachment 181 Outer Portion 182 Joining Face Plate 183 Bolt Port 19 Take Attachment 2 Lower curing frame 20 Frame 21, 22 Side member 23 Caster 24 Sealing plate 25 Skirt 26 Guide member 260 Guide slope 27 Seal member 28 Bolt attachment part 29 Attachment fitting 290 Bolt hole

Claims (6)

(57) [Claims] 1. A concrete curing frame used in the manufacture of a secondary concrete product, which can be disassembled and assembled. When assembled, the lower part is open and the side and upper parts are substantially open. A frame for concrete curing, comprising: a plurality of frame members which are in a state of being closed in a closed manner. 2. A concrete curing frame used in the manufacture of a secondary concrete product, wherein the curing frame can be disassembled and assembled. In the assembled state, the lower portion is open and the side and upper portions are substantially open. A plurality of frame members that are in a state of being completely closed, the frame member includes a lower frame member including a side member, and an upper frame member including a side member and an upper surface member. A frame for concrete curing. 3. The concrete curing frame according to claim 1, wherein the frame members have substantially the same shape, and the side members are formed so as to diverge toward the joint surface side. 4. The concrete curing frame according to claim 2, wherein a guide member for facilitating positioning when the upper frame member is placed on the lower frame member is provided. 5. The concrete curing frame according to claim 1, wherein a running means is provided on a bottom portion of the frame member. 6. A method for curing concrete in the manufacture of a secondary concrete product, the method comprising disassembling and assembling, wherein in the assembled state the lower part is open and the side and upper parts are substantially closed. Moving a plurality of frame members to a setting location of a formwork for manufacturing a concrete secondary product, assembling the frame member so as to house the formwork therein, sending steam into the frame member, A method for curing concrete, comprising: