JPS6149459B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a construction method for joints when interconnecting heat-insulating composite boards, and in particular, a foam insulation material is laminated on the back side of a glass fiber reinforced cement board on the back side of the joint part. This invention relates to a construction method for joints in a heat-insulating composite board that is made by attaching a composite back-up material and filling the front side with caulking material, making it possible to construct a wall surface that is highly waterproof, heat-insulating, and fire-proof. .

The applicant has developed a heat insulating composite board or a heat insulating building that is highly waterproof, heat insulating and fireproof, and has put it into practical use.
A patent application or a utility model registration application was filed under No. 1), etc., but these heat-insulating composite boards had a structure with grooves for joints on the four peripheral edges, making it difficult to manufacture and requiring dimensional adjustment. When the heat insulating composite board 1 is cut for this reason, the grooves for the joints at the ends cannot be used, so in this case, the joints between the heat insulating composite boards 1 are simply caulked as shown in Figure 1. Since the material 2 and the foam insulation material 3 are sealed with organic materials, they have poor fire protection, and in the event of a fire, there is a risk that this joint will be blown away by the fire or burnt out due to combustion, causing the fire to spread from this part to the building. There were flaws.

The construction method according to the present invention relates to a completely new technology developed in view of the drawbacks of the conventional methods.
To specifically explain the construction method of the present invention using diagrams,
As shown in Figs. 2 to 5, a composite back-up is made by integrally laminating a foamed heat insulating material 5 of the same width on the back side of a glass fiber reinforced cement piece 4 of a certain width slightly larger than the width of the joint. On the other hand, a certain width of the foam insulation material 8 on the side of the insulation composite board 1, which is constructed by integrally laminating a glass fiber reinforced cement board 7 and a foam insulation material 8, is cut out, and then The joint can be completed by arranging the two composite boards 1 in parallel with a constant gap between them, inserting the backup material 6 into the gap on the back side of both, and filling the front side with the caulking material 2. . In the above embodiment, as shown in FIG. 3, a sealant 9 is filled in the joint between the backup material 6 and the composite plate 1 to completely seal this part and further strengthen the bond between the two. Is possible.

Figure 4 in the above diagram shows the state in which the composite back-up material 6 is applied to the joint by the pre-applied method, and Figure 5
The figure shows the state in which the composite back-up material 6 has been applied to the joint area using the retrofitting method.
is the anchor bolt, 11 is the concrete layer, 12
13 is a formwork support material, 13 is a home tie, and 14 is a nail for fixing the back-up material 6.

By applying the sealant 9 in the above embodiment to the outer surface of the backup material 6 in advance, it is possible to simplify the workability and significantly improve the fire protection of the joint area. be.

Furthermore, in the above embodiment, the backup material 6 having a width larger than the width of the caulking material 2 was described, but as shown in FIGS. It is also possible to use 6 as well.

As described above, the construction method according to the present invention involves attaching a composite back-up material made by integrally laminating a foam insulation material on the back side of a glass fiber reinforced cement board to the back side of the joint of the insulation composite board, and caulking the front side of the composite back-up material. Since the joint is filled with material, this joint is not only highly waterproof and insulating, but also has excellent fire resistance, and the caulking material on the surface of the joint will not melt or burn out in the event of a fire. However, the back-up glass fiber reinforced cement board backed by this caulking material can prevent fires in the same way as insulating composite boards, completely preventing fire from penetrating into the building and spreading. This construction method can be easily installed at the joint joint when cutting and joining heat insulating composite boards at any position, and the backup materials used in this method can be cut into various shapes. It has the feature that it can be mass-produced at low cost by, for example,

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the conventional construction method, FIGS. 2 to 5 are explanatory diagrams showing the present construction method, and FIGS. 6 and 7 are explanatory diagrams of other examples. 1: Heat insulation composite board, 2: Kokin material, 3, 5,
8: Foam insulation material, 4, 7: Reinforced cement board, 6:
Backup material, 9: Sealing agent.

Claims (1)

[Claims] 1. When joining insulating composite boards made by integrally laminating glass fiber-reinforced cement boards and foam insulation material in parallel to each other, foam is added to the back side of the glass fiber-reinforced cement boards on the back side of the joint joint. A method for constructing joints in a heat-insulating composite board, characterized by attaching a composite back-up material formed by laminating heat-insulating materials and filling the front side of the joint joint with caulking material.