JPH11200618A - Mold material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently perform a mold execution by assembling a mold material (mold unit), which is provided with a rib for withstand pressure having a hole for mounting separator on one side and is standardized in dimension and shape, so that waste may be produced at a job site. SOLUTION: A mold material 1 is formed out of reinforcing concrete in which synthetic resin fiber such as Aramid fiber is blended into a standardized and prescribed dimension by press and extrusion and a product is made thin and light in weight. A grid-like rib 2 for withstand pressure which is provided on one side of the mold material 1 is provided with separator mounting holes 3 and the assembling of a mold is facilitated. On an end face of the mold material 1, a fitting part 4 constituted of a recessed and projection part or a notched part is provided. When the mold material 1 is assembled, concrete is prevented from leaking from a joining part. When this mold material 1 is assembled into various kinds of shapes at a job site, field working is unnecessitated and waste is prevented from being produced. As result, shortening of term of works, conservation of resources and reduction of waste can be contrived.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork material for forming a formwork, and more particularly to a technique effective when applied to a formwork for construction and civil engineering.

[0002]

2. Description of the Related Art In buildings such as buildings and power plants, and in various types of buildings such as civil structures such as bridge piers, viaducts, tunnels, breakwaters, etc., formwork is made using plywood, metal foam, etc., and concrete is formed there. The foundations and walls are constructed by casting.

[0003] In this case, as a substitute for plywood or metal foam, many formwork materials that can be processed variously according to the situation at the site and can use nails have been proposed. A formwork is manufactured by appropriately cutting or joining such a formwork material on site, and foundation construction work and the like are performed.

[0004] On the other hand, when a form is made of plywood, it is necessary to withdraw the form after the concrete is cast, which involves not only a labor and time but also a large amount of waste material. For this reason, in recent years, so-called residual forms (also called embedded forms, discarded forms, and the like) that do not require withdrawal of the form after concrete placement have been used in many cases.

[0005]

However, although the above-mentioned formwork material has been considerably improved with respect to the easiness of processing and the propriety of use of nails, the formwork is still produced by on-site processing. I have. Therefore, in such a construction method, it takes a lot of man-hours to form the formwork, which is one of the factors that hinder the shortening of the construction period. The same applies to the case of the remaining formwork. Even though the man-hours required for removing the formwork are omitted, a considerable amount of man-hour is still required for forming the formwork, and the effect of shortening the construction period by the remaining formwork is fully utilized. Could not. In addition, waste is inevitably generated as a result of on-site processing, and the problem in this respect has been left unsolved.

An object of the present invention is to provide a mold which can increase the efficiency of a mold forming process and does not generate waste material.

[0007] The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0008]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

That is, the formwork material of the present invention is a formwork material used for manufacturing a formwork for construction and civil engineering,
It is characterized in that its dimensions and shape are standardized and the on-site processing at the time of forming the formwork is eliminated. This allows
The time required for forming the mold can be greatly reduced, the work can be made more efficient, and the construction period can be shortened. In addition, since no on-site processing is performed, no waste material is generated, which can contribute to resource conservation and waste reduction.

On the other hand, ribs for pressure resistance may be formed on the side surface of the form material, or holes for mounting a separator may be provided at predetermined intervals on the upper surface of the form material and the ribs. This makes it possible to attach the separator to an arbitrary position, which increases the degree of freedom in forming the mold and facilitates the work of attaching the separator.

It is also possible to use the above-mentioned form material for a remaining form or for a decorative form. Further, the form material may be formed of reinforced concrete containing synthetic resin fibers.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(Embodiment 1) FIG. 1 is a perspective view showing the structure of a form member according to Embodiment 1 of the present invention, and FIG.
FIG. 3 is a cross-sectional view taken along the line A, and FIG. In addition, in FIG. 1 and subsequent drawings, the width of the form material and the like are exaggerated for easy understanding of the present invention.

As shown in FIG. 1, the form material 1 according to the present invention is standardized to a predetermined size of, for example, 1000 × 2000 × 20 (mm), and contains synthetic resin fibers such as aramid fibers. It is formed by reinforced concrete. In this case, the reinforced concrete containing the synthetic resin fiber has a compressive strength and a bending strength of 3 to 4 that of the conventional concrete.
It is possible to produce a desired shape by pressing, molding, or the like. Therefore, in the present invention, by taking advantage of its strength and formability, this is adopted as a material of the formwork material 1 to reduce the thickness and weight of the product, and to make a standard product by pressing, molding, extruding, etc. at a factory. As a batch production.

On the other hand, ribs 2 are provided on the side surface of the form material 1 in a grid pattern at intervals of 4 equal lengths and 8 equal widths, so that the pressure of concrete applied when used as a formwork can be reduced. I can bear it. Separator mounting holes 3 having a diameter of 9 mm are provided at regular intervals on the upper surface 1a, the end surface 1b, and the rib 2, so that the separator can be mounted at an arbitrary position. In the case where the form material 1 is manufactured by extrusion molding, since the ribs 2 can be formed only in one direction, the ribs in the direction perpendicular to the ribs 2 will be attached later.

Further, a fitting portion 4 for connection is provided on the end face 1c, and the adjacent form members 1 are joined together in an uneven fitting state as shown in FIG. 3 (a). Thus, when the form material 1 is assembled as a form, concrete does not leak from the joint. In addition,
Since the mold material 1 shown in FIG. 1 is shown as an example used for the end of the mold, the fitting portion 4 is not provided on the end surface 1b on the near side, and the separator mounting hole 3 is formed instead. I have. Further, the shape of the fitting portion is not limited to that shown in FIG. 3A, and may be formed in a hook shape as shown in FIG. 3B as long as concrete leakage can be prevented. Is optional.

Next, a mold 10 using the mold material 1 of FIG. 1 will be described. FIG. 4 is a perspective view of a mold constructed using the mold material 1 of FIG. 1, and FIG. 5 is a cross-sectional view taken along line BB of FIG.

This formwork 10 is a so-called residual formwork used for, for example, the foundation work of a building, and as shown in FIGS. The configuration is such that they are arranged in parallel. The rows of the formwork 10 are connected to each other by a separator 11 while maintaining a predetermined space therebetween, so that the formwork 10 is not separated by concrete pressure during concrete placement.
In this case, the separator 11 is attached to the formwork 10 by inserting the hook portion 11 a into the separator attachment hole 3 of the formwork material 1. Therefore, in the formwork 10, the separator 11 can be mounted at an arbitrary position by appropriately selecting the separator mounting hole 3. In addition, it is not necessary to perform a work of making a hole in a concrete panel or a metal foam, passing a separator, and fixing it with a dedicated metal fitting as in the related art.

Here, the formwork 10 is manufactured by assembling a formwork material 1 previously manufactured in a factory at a building site or the like. That is, first, the form of the form is assumed based on the design drawing, and the form material 1 is allocated according to the form. Next, the necessary formwork material 1 is manufactured at the factory according to the allocation, and is carried into the site. Then, at the site, the carried-in form material 1 is joined as it is along the layout to form the formwork 10. Therefore, according to the formwork material 1 of the present invention, on-site processing at the time of forming the formwork is not required at all, and the time required therefor can be greatly reduced. In addition, since no on-site processing is performed, no waste material is generated, which can contribute to resource conservation and waste reduction.

On the other hand, such a mold 10 is generally used as follows. First, the ground is excavated to make a hole for building a foundation, and a so-called throw-out concrete is hit on the bottom surface of the hole to construct a concrete base 12. Next, the frame members 1 are arranged and fixed in parallel on the base 12, and the separator 1 is provided between each row.
1 to form a mold 10. FIG. 4 shows a state in which the mold 10 is manufactured. After constructing the formwork 10 in this way, concrete is poured into the formwork 10. And after the concrete has solidified,
The formwork 10 is removed and the holes are backfilled to complete the concrete foundation.

(Embodiment 2) Next, a mold member 21 according to Embodiment 2 of the present invention will be described. FIG. 6 is a perspective view showing the configuration. In addition, the form material 1 of the first embodiment
The same reference numerals are given to the same parts as those described above, and the details are omitted.

The form material 21 is for forming a corner portion of the form, and is standardized and factory-produced similarly to the form material 1 described above. In this case, as in the case of the form member 1 of the first embodiment, a rib 2 is formed on one surface side, and a separator mounting hole 3 is also provided. Then, a mold is manufactured using this mold 21 together with the above-described mold 1 and various molds described later, and the foundation of the building is constructed.

(Embodiment 3) Further, a mold member 31 according to Embodiment 3 of the present invention will be described. FIG. 7 is a perspective view showing the configuration. Note that portions common to those of the formwork material 1 of the first embodiment are denoted by the same reference numerals, and the details thereof are omitted.

The frame member 31 is formed by adding the window space 3 to the frame member 1.
2 and is produced at the factory as in the case of the former frame material 1 and is not processed on site. In this case, as in the case of the formwork member 1 of the first embodiment, a rib 2 is formed on one surface side, and a separator mounting hole 3 is also provided. Formwork material 1, 21
Is the same as However, in the form member 31, a window space 32 is formed substantially at the center thereof, and a window frame member 33 such as a sash rail is attached in advance around the window space 32.

Here, in the conventional construction method, a form frame is roughly formed so as to form a window space, and a sash rail or the like is inserted into the space completed after concrete casting to form a window frame. On the other hand, in the formwork material 31 according to the present invention, the window frame member 33 is incorporated in the formwork material 31 in advance by taking full advantage of the remaining formwork, and immediately after the concrete is cast, it functions as a window frame. I am trying to do it. Therefore, it is possible to omit a process of additionally processing a rough space in accordance with the window frame and then mounting the window frame member thereon, thereby making it possible to increase work efficiency and shorten the construction period.

In this case, the position, shape, size, and the like of the window vary depending on each building, and the window frame member 33 also varies depending on the manufacturer. Therefore, although the form material 31 is a standard product, it is a product of a made-to-order product manufactured according to the design drawing.

Note that such a space is not limited to a space for a window, but can be applied to all spaces for forming an opening such as a door.

(Embodiment 4) In addition, a mold member 41 according to Embodiment 4 of the present invention will be described. FIG. 8 is a perspective view showing the configuration, and FIG. 9 is an explanatory view showing an example of a mold using the same. Note that portions common to those of the formwork material 1 of the first embodiment are denoted by the same reference numerals, and the details thereof are omitted. Further, in FIG. 9, since the drawing becomes complicated and the configuration becomes difficult to grasp, the ribs 2 and the separator mounting holes 3 are not provided.
Is simplified.

The form member 41 is used when forming a foundation or a bank having a predetermined shape. In this case, as in the case of the formwork member 1 of the first embodiment, a rib 2 is formed on one surface side, and a separator mounting hole 3 is also provided. Formwork materials 1 and 2
Same as 1 and so on. Although not shown in FIG. 8,
The rib 2 is also formed inside the slope portion 41 a of the formwork member 41.

On the other hand, the shape and dimensions of the form member 41 are set in accordance with an object whose shape and dimensions are predetermined, such as a basic reference cross section. That is, it is standardized so that the formwork as shown in FIG. 9 can be constructed uniformly, and is produced in a factory as in the case of the above-mentioned formwork material, and is assembled into the formwork on site.

Although the invention made by the inventor has been specifically described based on the embodiment, the invention is not limited to the embodiment and can be variously modified without departing from the gist of the invention. Needless to say,

For example, the above-described form material is merely one of the application examples of the present invention, and the shape and dimensions are merely examples, and are not limited to those described above. Also,
The same applies to the number of ribs and the number of holes, and their dimensions and pitch.

It should be noted that the formwork material according to the present invention can be applied not only to the remaining formwork for foundation construction as described above, but also to a formwork for constructing a wall or a retaining wall of a building. This can also be used as a decorative mold, for example, as shown in FIG.
As described above, a concave portion 51 may be provided on the back side of the form material 1 or the like, and a brick, a decorative board, a tile, or the like may be fitted therein. Further, the back surface itself may be used as a wall surface such as an interior / exterior surface, and in that case, the surface can be coated with a fluororesin to give an arbitrary color or pattern.

In the above description, the case where the invention made by the present inventor is mainly applied to a formwork for construction and civil engineering, which is its application field, has been described, but the invention is not limited to this.

[0035]

Advantageous effects obtained by typical ones of the inventions disclosed in the present application will be briefly described.
It is as follows.

(1) By standardizing the size and shape of the formwork material, no on-site processing is required for the manufacture of the formwork, and the time required for the work is greatly reduced to improve the work efficiency. Becomes possible. Therefore, the time can be devoted to other work, and the construction period can be shortened. In addition, since no on-site processing is performed, no waste material is generated, which can contribute to resource conservation and waste reduction.

(2) Since the separator mounting holes are provided at predetermined intervals, the separator can be mounted at an arbitrary position by appropriately selecting the holes. Thereby, the significance of standardizing the form material can be secured, and the degree of freedom of the form manufacturing operation can be increased.
In addition, the work of attaching the separator is also facilitated, and the work can be made more efficient and the construction period can be shortened.

(3) By using synthetic fiber reinforced concrete, the thickness and weight of the form material can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a mold member according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an explanatory view showing a configuration of a joining portion of a form member.

FIG. 4 is a perspective view of a mold constructed using the mold material 1 of FIG. 1;

FIG. 5 is a sectional view taken along the line BB of FIG. 4;

FIG. 6 is a perspective view illustrating a configuration of a form member according to Embodiment 2 of the present invention.

FIG. 7 is a perspective view showing a configuration of a form member according to Embodiment 3 of the present invention.

FIG. 8 is a perspective view showing a configuration of a form member according to Embodiment 4 of the present invention.

FIG. 9 is an explanatory view showing an example of a mold using the mold material of FIG. 8;

FIG. 10 is an explanatory view showing a state in which the form material according to the present invention is used for a decorative form.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Form material 1a Top surface 1b End surface 1c End surface 2 Rib 3 Separator mounting hole 4 Fitting part 10 Form frame 11 Separator 11a Hook part 12 Base 21 Form material 31 Form material 32 Window space 33 Window frame member 41 Form frame Material 51 recess

Claims (6)

[Claims] 1. A formwork material used for producing a formwork for building and civil engineering, characterized in that its dimensions and shape are standardized and that on-site processing in producing the formwork is eliminated. Formwork material. 2. The formwork material according to claim 1, wherein a pressure-resistant rib is formed on a side surface of the formwork material. 3. The mold material according to claim 1, wherein holes for mounting a separator are provided at predetermined intervals on an upper surface of the mold material and the ribs. 4. The formwork material according to claim 1, wherein the formwork material is a formwork material used as a residual formwork. 5. The formwork material according to claim 1, wherein the formwork material is a formwork material used as a decorative formwork. 6. The formwork material according to claim 1, wherein the formwork material is made of reinforced concrete containing synthetic resin fibers. .