JPH04127355U - Edge processing formwork panel - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a formwork panel for concrete pouring that prevents concrete from seeping in from the edges and adhering to the panel. [Structure] A formwork panel 1 is formed by laminating a surface material 3 on the surface of a core material 2 made of plastic foam, and has a structure in which the edge surface is covered with a face material 4.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is suitable for reinforced concrete construction (RC construction) or steel reinforced concrete construction. This is used for concrete pouring such as concrete construction (SRC construction), with treated edges. This invention relates to formwork panels for concrete pouring.

0002

[Conventional technology]

Traditionally, as formwork for RC construction and SRC construction, a surface material was pasted on the surface of a core material. Formwork panels are used. Concrete, such as formwork panels After pouring, it is glued together with the concrete frame and cut into the concrete frame surface. It can be recycled in the same way as formwork panels that remain as a thermal layer and serve as insulation materials, and general plywood formwork panels. There are repurposed formwork panels that can be used repeatedly. The structure of the above-mentioned formwork panels is usually made of a plush material such as urethane foam as the core material. Chic foam and honeycomb core are used to improve the strength of panels and A surface material is laminated on the surface of the core material to improve adhesion with the REIT. The growth is known.

0003

[Problem that the idea aims to solve]

However, on the edge side of the conventional formwork panel mentioned above, the core material is covered with the surface material. It is not covered and is exposed to the outside. If the core material is exposed in this way, the concrete will be removed at the connections between the formwork panels. The concrete tends to seep in from the edges and sticks to the panel when the concrete hardens. In the case of repurposed formwork, once used formwork can be removed from the concrete surface and used again. To prevent the concrete bonded to the edge of the formwork from peeling off when using the edge of the formwork, If the concrete is used while the concrete is still attached, the joints at the ends of the formwork will be damaged. There will be gaps and the precision of the formwork will deteriorate. Also, if you forcefully remove the concrete attached to the edge surface, the surface material may peel off or If the core material falls off and is used as a formwork again, a gap will be created at the joint of the formwork. There were problems with concrete leaking out. In addition, in the case of formwork that also serves as a heat insulating board, it can be used as a heat insulating panel after concrete is poured. When used, if the core material is exposed, it absorbs moisture and the insulation performance deteriorates. was there. The present invention is intended to eliminate the drawbacks of the above-mentioned conventional technology. If the concrete soaks in and adheres, or if the formwork is used as insulation, the insulation performance will be low. The purpose is to provide edge processing formwork panels that do not need to be lowered. It is.

0004

[Means to solve the problem]

The edge processing formwork panel of this invention has a surface on the surface of the core material made of plastic foam. In a formwork panel made of laminated materials, the edge side is covered with a facing material. Ru.

[0005]

【Example】

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The drawing shows one implementation of the invention. As an example, FIG. 1 is a partial sectional view showing an example of the edge processing formwork panel of the present invention, FIG. 2 is a cross-sectional view taken along line A--A in FIG. As shown in Figures 1 and 2, the edge processing formwork panel 1 of the present invention is made of plastic foam. It is a formwork panel formed by laminating a surface material 3 on the surface of a core material 2 consisting of a body, and the edge surface is covered with a face material 4. The above panel material 4 is wider than the edge width (panel thickness B) and cannot completely cover the edge. It is preferably about 40 to 60 mm wider than the edge width (B). As shown in Figure 2, the length of C is approximately 20 to 30 mm. is desirable. If the face material 4 is formed as described above, the width of the face material 4 will not be too wide. This makes it easier to cover the formwork panel, and since the width of the facing material 4 is not too narrow, it can be easily covered from the edge side. It is preferable because it is difficult to peel off. The material of the face material 4 is, for example, polypropylene, polyethylene, polyethylene Plastic sheets such as phthalate, the above plastic sheets are stacked on a thin metal sheet. Layered materials, soft foam sheets, non-woven fabrics, woven fabrics, etc. , Also, the back side of the above sheet is coated with adhesive in advance to form an adhesive tape. A material coated with a hot melt adhesive or the like can also be used. Used for repurposed formwork If so, it is preferable to use a material that does not easily adhere to concrete. It is also possible to use double-sided adhesive tape as the facing material 4, especially double-sided adhesive tape. The formwork panels whose edges are covered with strips can also be used as insulation materials as disposable formwork that will not be reused. When used in formwork, it is easy to connect the panels at the edges, and the panels are tightly attached to each other. Ideal for improving sexual performance. In addition, double-sided adhesive tape is used for the surface material 4 of the repurposed formwork. This is not preferable because it takes time and effort to separate the panels. If the above plastic sheet is used as the surface material 4, it will peel easily from the concrete. water resistance is improved. If another soft foam is used, the foam will Since the formwork is in close contact with each other, the airtightness of the formwork joints can be further improved. Ru.

[0006] As a material for the plastic foam used as the core material 2 of the edge processing formwork panel of the present invention. are polyurethane, polypropylene, polystyrene, ABS and polyvinyl chloride and phenolic foams. The core material 2 above can also be used as a heat insulating material. In the case of frames, materials with good heat insulation performance are used, and when used as repurposed formwork, materials with high strength are used. Select appropriate materials according to the intended use of the formwork panel, such as using good quality materials. can do. The surface material 3 is polyethylene terephthalate, polypropylene, polystyrene, Plastic sheets or films such as ABS, polyvinyl chloride, polyethylene, etc. Conventionally known materials such as liner paper, nonwoven fabric, metal foil, inorganic paper, etc., or laminates thereof, etc. surface material is used. Surface material 3 is made of self-adhesive core material, organic adhesive, concrete material, etc. Laminated with core material. To cover the edge side of the formwork panel, layer the above-mentioned face material 4 with core material 2 and surface material. It is laminated on the edge surface of the panel 1 with adhesive or adhesive. This invention covers all the edges. Although it is preferable to cover the whole circumference, it is not necessary to cover only a part of the circumference. The thickness, dimensions, density, etc. of the edge processing formwork panel 1 of the present invention are not particularly limited, and may vary depending on the application. It may be formed into an appropriate size and shape. The formwork panel of this invention can be used as formwork for concrete pouring, as formwork for diversion, or as insulation material. It can be optimally used as various formwork panels such as formwork.

[0007]

[Effect of the idea]

As explained above, the edge side of the edge-treated formwork panel of the present invention is covered with a facing material. Compared to conventional formwork panels in which the core material is exposed from the edges, , the adhesion of the mating surfaces of the panels has been improved, and when concrete is poured into the formwork, the edge Prevents concrete from seeping in from the surface and adhering to the core material. Furthermore, the end face? There is no risk of the surface material peeling off, and there is no need to touch the edges when transporting or moving the panel. It has the effect of protecting the panel and preventing it from being damaged. When the edge processing formwork panel of this invention is used for repurposed formwork, conventional formwork panels When using panels that have been used once, there is no need to remove concrete that has adhered to the edges. Also, even if concrete were to adhere to the edge of the panel, it would only adhere to the face material. Since it does not come into contact with the core material, it is easy to peel off and a clean edge surface can be obtained. Therefore, there are no gaps at the panel joints of the concrete formwork, creating a highly accurate formwork. A concrete structure with a good finish can be obtained. In addition, when the edge treatment formwork panel of the present invention is used as a formwork that also serves as a heat insulating material, the After the cleat hardens, there is no risk of moisture absorption from the small end surface and a decrease in insulation properties, resulting in good insulation. performance can be maintained.

[Brief explanation of drawings]

FIG. 1 is an external perspective view showing an example of the edge processing formwork panel of the present invention.

FIG. 2 is a cross-sectional view taken along line A-A of the edge treatment formwork panel of FIG. 1;

[Explanation of symbols]

1 Edge processing formwork panel 2 Core material 3 Surface material 4 Face material

Claims (1)

[Scope of utility model registration request] 1. An edge-treated formwork panel comprising a surface material laminated on the surface of a core material made of plastic foam, wherein the edge surface is covered with a facing material.