JPH0687564U - Formwork for heat insulation of concrete walls - Google Patents

Abstract

(57) [Summary] [Purpose] Concrete-containing water from the joint portion of a concrete wall heat-insulating formwork that can omit the work of removing the formwork after the work of constructing the concrete formwork and the work of attaching the insulating material are completed at the same time. The purpose is to effectively prevent the outflow of. [Composition] On the surface of the foamed phenolic plate 2, an inorganic fiber reinforced phenolic plate 3 of the same size as the foamed phenolic plate 2 is provided at a side end portion 2.
A and 3A are shifted and laminated integrally, and the shifted portion becomes a jagged joining step.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a formwork for heat insulation of a concrete wall.

[0002]

[Prior art]

 Generally, when building a concrete wall, a mold made of plywood, etc. is assembled, concrete is poured into this mold to wait for it to harden, and the mold is removed to perform various cosmetic constructions or heat insulation walls on the surface. The procedure was to attach the heat insulating material. However, in the case of the above-mentioned formwork method, the formwork is used only as a form for constructing a wall surface, and there is a drawback that the subsequent work of removing the formwork is very troublesome. In particular, when wearing a heat insulating material, etc., after removing the formwork, a plate-like heat insulating material with the same shape as the formwork is again attached to the concrete wall surface, or an adhesive agent is applied, so that it takes a lot of time and effort. There was a problem that it took a long time to build. In order to solve such a problem, a fiber-reinforced expanded phenolic resin board may be used as a heat insulating material and a formwork, and after the concrete is placed, this fiber-reinforced expanded phenolic resin board may be used as an interior material. .

[0003]

[Problems of conventional technology]

 By the way, as shown in FIG. 3, a mold made of these fiber-reinforced foamed phenolic resin plates is conventionally assembled by assembling the molds A and A by supporting them by supporting members B and C in vertical and horizontal directions and placing concrete D. Since the structure has been adopted, there is a problem that the water content of the concrete leaks from the abutting portion A1 of the form A and this contaminates the form surface, and cleaning or makeup finishing of the form A surface after the concrete is hardened is indispensable. There was such a problem.

[0004]

[Problems to be solved by the device]

 In view of the above-mentioned problems, the present invention, in which the construction of the concrete formwork and the work of attaching the heat insulating material are completed at the same time, and the work of removing the formwork afterward can be omitted, the water-contained formwork of the concrete wall, which contains concrete containing water from the joint The purpose was to effectively prevent the outflow of water.

[0005]

[Means for Solving the Problems]

 That is, in this invention, the form 1 for heat insulation of concrete wall is also laminated on the surface of the foamed phenolic plate 2 with the inorganic fiber reinforced phenolic plate 3 of the same size as the foamed phenolic plate 2 by shifting the side end portions 2A, 3A. It is characterized by being done.

[0006]

【Example】

 Next, an embodiment of this invention will be described. 1 is a sectional view of an embodiment of the present invention, and FIG. 2 is a sectional view showing a usage state of the embodiment.

The formwork 1 for heat insulation of a concrete wall according to the present invention has, for example, a density of 30 kg / m ³ on the surface of a foamed phenolic plate 2 and the same size as the foamed phenolic plate 2, for example, a density of 450 kg / m ³ The inorganic fiber-reinforced phenolic plate 3 is formed by laminating the side end portions 2A and 3A so as to be integrally laminated.

In the above embodiment, the thickness of the foamed phenolic plate 2 and the inorganic fiber reinforced phenolic plate 3 is generally about 2: 1 as shown in the figure, but these are required due to heat insulation performance and strength. It goes without saying that the ratio is different from. The direction in which the foamed phenolic plate 2 and the inorganic fiber reinforced phenolic plate 3 are displaced is either when the horizontal pieces are aligned and only the vertical sides are displaced in parallel, or when both the vertical and horizontal sides are displaced in the diagonal direction. May be.

[0009]

[Action]

 When assembling the heat insulation / formwork 1 of the concrete wall according to the present invention, as shown in FIG. 2, the end portions 2A and 3A which are offset from each other are joined together. Therefore, the displaced portion becomes a fitting portion, and the molds 1 and 1 are joined together without a gap. Further, the vertical and horizontal support members B and C prevent water and the like from flowing out from the joint after fixing. In addition, after the assembly, the one used as the formwork becomes the heat insulating material of the concrete wall as it is, and the subsequent work of removing the formwork is completely unnecessary. Further, since the foamed phenol plate 2 and the inorganic fiber reinforced phenol plate 3 are nonflammable, they also function as a fire wall.

[0010]

[Effect of device]

 As described above, the concrete wall heat insulation / formwork 1 of the present invention has both a function as a formwork, a heat insulation material, and a function for providing surface accuracy, and has an interlocking shape at the joint portion. Since the joint step is formed, the connection can be made tightly, the water containing concrete inside does not flow out, and the repair work after hardening can be greatly omitted.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a usage state of the embodiment.

FIG. 3 is a sectional view of a conventional example.

[Explanation of symbols]

 1 ... Formwork for heat insulation of concrete wall 2 ... Foamed phenolic plate 2A ... Side end 3 ... Inorganic fiber reinforced phenolic plate 3A ... Side end

Claims (1)

[Scope of utility model registration request] 1. A heat insulating and concrete wall for a concrete wall, characterized in that an inorganic fiber reinforced phenolic plate 3 of the same size as the foamed phenolic plate 2 is integrally laminated on the surface of the foamed phenolic plate 2 with the side edges thereof shifted. Formwork.