JPS603344A - Light weight composite panel - 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 The present invention relates to a lightweight precast panel using a lightweight cellular concrete panel (hereinafter referred to as ALC, e-nel) cured with high temperature and high pressure steam, which is mainly used for curtain walls.

ALC panels are widely used because they are lightweight, have excellent heat insulation, and require a short construction period. However, it had the disadvantage of having low impact strength and being easily chipped. For this reason, it has been difficult to process the ends and provide a water return etc. in order to improve waterproof performance due to the possibility of chipping.

This invention was created to solve the above-mentioned drawbacks.
The purpose is to strengthen the periphery of the ALC panel and improve the waterproof performance of the joints.

The precast panel according to the present invention has an extruded fiber-reinforced concrete frame (hereinafter abbreviated as a GRC frame) integrally provided on the four circumferential edges of a board made of ALC.

The present invention will be explained below based on the illustrated embodiments. As shown in FIG. 1, the precast nozzle according to the present invention consists of an ALCI and a GRC frame 2 integrally provided around the periphery of an ALC panel 1.

As shown in FIG. 2, the ALC panel 1 is provided with a fitting groove 3 on its west side by cutting or the like.

On the other hand, a protrusion 4 is provided on the back side of the GRC frame.
The projecting piece 4 is fitted into the fitting groove 3 and integrated. Furthermore, it is possible to further strengthen the fixing force by applying adhesive between the ALC panel l and the GRC frame, or by using nails or bolts.

What is shown in FIG. 3 are the horizontal joints of a precast panel with such a configuration, and a roughly E-shaped GRC frame 2A at the top of the upper ALC panel 1' and the upper part of the lower ALC panel 1'.
2B is installed.

When constructing the panels, the erection work shown in Figure 4 is required, but because ALC has low local compressive strength, compressive failure is likely to occur in the areas where it contacts the ground.

In addition, during the erection of .ξ panels, the edges of the panels collided with the scaffolding and individual steel frames, causing chipping, which was a problem.

However, by reinforcing the edges of the ALC panel around the four sides with the GRC frame, it becomes strong against local compression and can prevent chipping. Therefore,/! , it is possible to process the edges of the LC panel in a complicated manner.

Figure 4 shows a concrete application example of GRC-i. A lower GRC frame 2 in the shape of a disconnection circuit is provided at the lower part of the upper ALC panel 1' and has a protrusion S that protrudes downward on the outdoor side.
C, and an upper GRC frame 2D that is provided on the upper part of the lower ALC panel 1'' and has a protrusion 6 that protrudes upward on the indoor side and has a Kfr plane substantially blood path.

In such a configuration, an equal pressure space with the outside air is formed between the protrusion 5 and the protrusion 6, which alleviates the blowing of wind and prevents water from entering by the rising part. be done.

FIG. 5 shows the structure of a horizontal joint when a molded joint material is used.

A lower GRC frame 2E, which is provided at the lower part of the upper ALC panel 1' and has a substantially T-shaped cross section and has a concave groove 7A, and a lower A
, provided on the upper part of the C-e flannel 1'', and similarly having a concave groove 7
It is composed of an upper GRC frame 2F having a substantially T-shaped cross section and having a shape of B.

Molded joint materials 8A and 8B are fitted into the concave grooves to provide a waterproof function.

Of course, as shown in FIG. 6, it is also possible to have a configuration in which a waterproof stand-up and a molded joint are combined.

Since the above GRC frame is manufactured by extrusion molding, the multiple protrusions and concave grooves can be easily molded.

The present invention has the above-mentioned configuration, and is a precast panel that is significantly effective against chipping of ALC panels and has dramatically improved waterproof performance.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a precast sonnel according to the present invention, Fig. 2 is a perspective view showing an embodiment of the invention, and Figs. 3 and 5 to 7 are sectional views showing horizontal joints of a precast panel. , FIG. 4 is a perspective view showing how the ALC panel is erected. 1... ALC panel, 2, 2A, 2B, 2C. 2D, 2E, 2F, 2G, 2H...GRC frame, 3...
- Fitting 4.4... Protruding piece, 5... Adhesive material, 6...
Irregular sealing material, 7... Notokup material, 8.
...Nail, 9°10...Protrusion, IIA, 11B...
Recess groove, 12A. 12B... Molded joint material. Patent applicant Asahi Kasei Kogyo Co., Ltd. Figure 1 Figure 3 Figure 2 Factor 5 Figure 6 219- Factor 7

Claims (1)

[Scope of Claims] 1. Fitting grooves are provided on the four circumferential edges of a lightweight aerated concrete panel cured with high temperature and high pressure steam, and an extruded fiber-reinforced concrete frame having a protruding piece on the back side is fitted into the fitting groove. Precast panel 2 characterized by being integrated, precast panel 1 according to claim 1, wherein an adhesive is interposed in the gap between the lightweight cellular concrete panel and the extrusion-molded fiber reinforced concrete frame. Lightweight cellular concrete, a precast panel according to claim 1, in which nails are passed directly through the reed panel and the extruded fiber-reinforced concrete frame.