JPS62121275A - Dam panel member - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (a), Industrial application field The present invention relates to a weir plate member using lath wire mesh.

(b), Prior Art Conventionally, when a lath wire mesh is used as a weir plate, the lath wire mesh is used as it is as a weir plate member to form a concrete placement space.

(C) 0 Problems to be Solved by the Invention However, with this method, the cement paste and mortar of the concrete placed in the concrete placement space leaks outside through the mesh of the lath wire mesh, resulting in 20% of the amount of concrete placed. Not only was ~3% lost, but the external appearance of the concrete structure after hardening became unsightly due to the leaked concrete. Additionally, if leaked cement paste, etc. adheres to and hardens on the fasteners and pipes that support the weir, it will require a great deal of effort to dismantle the formwork, and furthermore, it will be difficult to wash away the cement paste, etc. that has adhered to the fasteners, etc. It becomes necessary.

Furthermore, since the concrete poured through the lath wire mesh is in direct contact with the outside air, the water necessary for hardening the concrete inside the concrete is dissipated due to evaporation, etc., making it difficult to produce high-quality concrete. It was. Moreover, if the lath wire mesh is buried as is, there is a problem in that when the wire mesh rusts and expands, the concrete near the wire mesh will peel off.

In order to eliminate the above-mentioned drawbacks, the present invention has been developed to prevent the poured concrete from leaking to the outside, thereby making it possible to construct a structure with a beautiful appearance, as well as to prevent the concrete from leaking to the outside. The first objective is to provide a weir plate member that does not cause problems such as adhesion of concrete.Furthermore, it is capable of preventing the dissipation of water in the concrete and promoting good solidification of concrete. A second object of the present invention is to provide a weir plate member that can be used to remove concrete and that does not cause peeling of concrete even if the wire mesh rusts.

(d) Means for solving the first problem, that is, the present invention has a lath wire mesh (3), and the lath wire mesh (
3) and a separate sheet (6).

Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions on the drawings. The following r (el
The same applies to the column ``, action''.

(e) 1 Effect With the above-described configuration, the present invention acts so that the concrete poured in the concrete placement space (5) is prevented from leaking to the outside by the separate sheet (6).

(f), Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a cross-sectional view showing an example of a formwork in which an embodiment of the weir plate member according to the present invention is used, and FIG. 2 is a cross-sectional view showing an example of the weir plate member according to the present invention.

As shown in Fig. 1, the formwork 1 has supports 2 formed of pipes, etc., and the supports 2 are arranged at regular intervals in the direction perpendicular to the plane of the paper in the figure, which is the installation direction of the formwork 1. is set up.

On both sides of the formwork 1, lath wire mesh 3.3, which together with a separate sheet 6 (to be described later) constitutes a weir plate 4, is provided to construct a concrete casting chamber rIIJ5 having a width L1.
A separate sheet 6 made of vinyl, nonwoven fabric, etc. is installed between the lath wire mesh 3 and the concrete placement space 50. A separator 8 is provided between the columns 2 and 2, which are provided to sandwich the concrete placement space 5, so as to penetrate through the concrete placement space 5, and fasteners 7 are provided at both ends of the separator 8. are screwed together via a pipe-shaped member 9 provided to connect each support column 2 in a direction perpendicular to the plane of FIG. 1.

Since the formwork 1 has the above configuration, when constructing a structure by pouring concrete, the concrete pouring space 5 is constructed using the columns 2, members 9, sheathing plates 4, etc. , concrete is poured into the constructed concrete placement space 5. When installing the weir plate 4, the second
A separate sheet 6 is attached to one side of the lath wire mesh 3 as shown in the figure.
A weir plate member 10 to which is attached is used. This weir plate member 10 is produced in a factory or the like with the separate sheet 6 provided on the lath wire mesh 3 in advance, and therefore, at the site, the weir plate 4 is installed only with the conventional lath wire mesh 3. Simply installing the member 10 completes the installation of the separate sheet 6 at the same time.

Note that the weir plate member 10 may be used by installing a separate sheet 6 on a regular lath wire mesh 3 on site, but this has the disadvantage that it takes time to construct the formwork 1.

In this way, when the formwork 1 is constructed, the constructed formwork 1
Concrete is placed in the concrete placement space 5, but the placed concrete does not leak to the outside because the separate sheet 6 is interposed between the lath wire mesh 3 of the weir plate 4 and the concrete. However, the poured concrete can be effectively used to construct structures.

(g) 0 Effects of the invention As explained above, according to the present invention, since the lath wire mesh 3 is provided and the separate sheet 6 is provided on the lath wire mesh 3, concrete is poured into the concrete placement space S. The placed concrete is prevented from leaking to the outside of the concrete placement space 5 by the separate sheet 6, and the entire amount of placed concrete can be used for constructing the structure. In addition, since concrete does not leak outside, there is no possibility of concrete adhering to the stopper 7, support 2, member 9, etc. Therefore, not only is there no need to clean the adhering concrete, but after the concrete has hardened, the mold The frame l can also be easily dismantled.

Moreover, when the formwork 1 is dismantled, the lath wire mesh 3 can be recovered without concrete attached, making it possible to reuse the lath wire mesh 3 as the weir plate 4, which is economical. be.

Further, since concrete does not leak outside the concrete placement space 5, the appearance of the constructed structure is also beautiful. Moreover, even if the lath wire mesh 3 corrodes and expands when the weir board 4 is buried, since the separate sheet 6 is provided between the lath wire mesh 3 and the concrete, the corroded lath wire mesh 3 will There is no possibility that the concrete will peel off.

Note that when the separate sheet 6 is made of a water-impermeable material such as vinyl, the dissipation of moisture in the concrete in the concrete placement space S is effectively prevented, and high-quality concrete can be obtained. However, if a certain amount of moisture needs to be discharged, the separate sheet 6 may be formed from a water-permeable nonwoven fabric or the like.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an example of a formwork in which an embodiment of the weir plate member according to the present invention is used, and FIG. 2 is a cross-sectional view showing an example of the weir plate member according to the present invention. 3... Lath wire mesh 4... Shelter plate 5... Concrete placement space 6... Separate sheet 10... Sheet plate member

Claims (1)

[Claims] A weir plate member comprising a lath wire mesh and a separate sheet provided on the lath wire mesh.