JPH075150Y2 - Concrete formwork - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a concrete formwork capable of easily and economically constructing a retaining wall such as a pile of natural stones.

[Problems to be solved by conventional techniques and devices]

Conventionally, most of the retaining walls formed on the mountain slopes on the road side and around houses are dry retaining walls having a simple straight surface, and retaining walls that are aesthetically conscious have not been adopted.

In other words, it took a lot of money and effort to make a so-called castle wall-like retaining wall made of piled natural stones, so in the end, we had to make a mere straight retaining wall.

The applicant has completed the present invention as a result of research into whether a so-called castle wall-like retaining wall can be constructed without cost and effort.

[Means for Solving the Problems]

 The detailed description will be made with reference to the accompanying drawings.

A mold body 3 having an uneven surface 2 is provided, a mold release layer 6 is provided on the surface of the mold body 3 to improve mold release with concrete, and the mold bodies 3 are arranged side by side vertically and horizontally. In this case, the mold release layer 6 is provided on the contact surfaces of the adjacent mold bodies 3 in the same manner as described above, and the mold release layer 6 is set as a concrete inflow prevention layer. .

〔Example〕

A lot of natural stones are lined up and fixed so that they look like piled up natural stones, and a release agent is applied to these natural stones, then unsaturated polyester resin is applied, and glass nonwoven fabric or woven fabric or both are laminated. This is repeated, and the curing agent is used together to cure.

After hardening, when the natural stones are removed, the mold 3 having the uneven surface 2
As a result, a FRP plate can be obtained.

A method of laminating and hardening a prepreg plate may be adopted.

This FRP plate is screwed to the substrate 4 (any material such as resin, metal, wood, etc.) by an appropriate means such as a screw 1.

A mold release layer 6 such as a silicone rubber layer is formed on the surface and side surfaces of the FRP to improve the mold release.

A predetermined number of the mold bodies 3 are spliced adjacently to each other and erected at a desired position, and a concrete panel plate 8 is erected with a desired gap 7 interposed therebetween. When concrete is flown into the desired gap 7, the desired gap 7 is formed. Thus, the concrete retaining wall 9 is formed with a feeling that the surface of the width is piled up with natural stones inserted therein.

In the drawing, the silicone rubber layer is extended to the side surface of the FRP plate, the concrete poured into the joint of the mold 3 forms a burr wire, and the completed concrete retaining wall 9 (particularly the natural stone-shaped convex portion) The burr line is prevented from appearing on the upper side.

The FRP plate in the drawing is about 3 mm to 10 mm, the silicone rubber layer is 0.5 m
It is desirable that m to 10mm.

The drawing shows the case where the resin substrate 4 is attached to the FRP plate with screws and detachably provided, but the substrate 4 is also made of FRP and
It may be molded integrally with the plate.

The concrete retaining wall 9 formed by the mold 3
In order to make the stone look like a pile of natural stones, it is advisable to mix the inflowing concrete with inorganic pigments and anti-coloring agents that retain the color of natural stones.

FIG. 2 shows that the three mold bodies 3 are arranged adjacent to each other and the three uneven surfaces 2 are formed.
The figure shows a case where a continuous natural stone piled up state is expressed by one unit, and if this one unit is placed in a row on the left and right and up and down, any continuous natural stone piled up state can be easily obtained and is very well-formatted. A retaining wall can be formed.

The more the number of units of one unit is increased, the more the feeling of natural stone is emphasized, which is desirable.

Since the mold body 3 of this embodiment has a structure having the uneven surface 2 in which natural stones are piled up as described above, the mold body 3 is used to form a retaining wall without stacking natural stones. A retaining wall with the same shape as if natural stones were piled up in an embedded state can be easily and economically produced.

Further, since the mold body 3 is formed with the FRP plate in accordance with the natural stone, that is, the uneven surface 2 is formed by using the natural stone as a mold, the natural stone of any shape can be clearly shaped into the shape as it is. A concrete formwork that can be used and can be repeatedly and durablely used instead of being disposable.

Further, since the mold body 3 can be extended vertically and horizontally by making the uneven surface 2 continuous, if the number of the mold bodies 3 to be continuously arranged is selected according to the size of the construction site, the mold body 3 can be vertically arranged. It will also be possible to manufacture large retaining walls that spread continuously on the left and right with natural stones piled up.

[Action and effect]

According to the present invention, since a mold release layer is provided on the mold body, and a mold release layer is also provided on the contact surface between adjacent mold bodies, and the mold release layer is set as the concrete inflow prevention layer, the mold release layer is well separated from concrete. The concrete burr wire does not appear on the retaining wall that can be molded and is molded, so that a retaining wall with an excellent appearance can be obtained.

INDUSTRIAL APPLICABILITY As described above, the present invention provides an excellent concrete formwork capable of easily creating a retaining wall in which a concrete burr wire does not appear.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view of the product, FIG. 2 is a front view of the product in a stacked state, FIG. 3 is a partial sectional view of the product, and FIG. It is a production sectional view of a concrete retaining wall. 2 ... uneven surface, 3 ... mold, 6 ... release layer.

Claims (1)

[Scope of utility model registration request] 1. A mold body 3 having an uneven surface 2 is provided, and a mold release layer 6 is provided on the surface of the mold body 3 to improve mold release from concrete. When arranged in the installed state, the release layer 6 is also formed on the contact surfaces of the adjacent mold bodies 3 as described above.
And the mold release layer 6 is set as a concrete inflow prevention layer.