JP2001140373A - External heat insulating wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an external heat insulating structure while avoiding increases in cost of construction and thickness of a wall. SOLUTION: An external heat insulating wall is made of a plate-shaped body composed chiefly of hydraulic material whose particles are coupled together awed hardened. A number of hollow aggregates with air sealed therein are contained in the outdoor side of the inside of the plate-shaped body to form an external heat insulating layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an external heat insulating wall material used for walls of various types of concrete buildings, wooden buildings and the like.

[0002]

2. Description of the Related Art Conventionally, as an insulating concrete wall in a house such as a condominium in Japan, an insulating material mat such as foamed polyurethane or foamed polystyrene is applied to an indoor side surface of a concrete wall having an exterior surface painted or tiled. What has a so-called inner heat insulating structure in which an interior material is stretched on the indoor side is widely used.

[0003] However, in the wall of the above-mentioned inner heat-insulating structure, a warm room temperature is blocked by the above-mentioned inner heat-insulating material and does not reach the concrete wall in winter, so that the concrete wall is significantly exposed to cold outside air. The temperature becomes low, and the cool air of the concrete wall and the warm air of the room temperature cause a temperature gradient inside the inner heat insulating material to condense water vapor in the air into the inner heat insulating material. In addition to causing ticks, it also results in lowering the heat insulation function.In addition, in the summer, the concrete wall with heat storage stores the high heat of the outside air and gives hot air to the room for a long time in the summer, and in the winter, , The stored cold air was spread over the room for a long time, and this eventually resulted in the room being affected beyond the heat insulating function of the internal heat insulating material.

[0004] In contrast to the above-mentioned inner heat-insulating structure, it is possible to improve the disadvantages of the inner heat-insulating structure by adopting an outer heat-insulating structure in which a heat insulating material is provided on the exterior side of the concrete wall.
It is already known in Japan, and in Europe and the United States, walls with external heat insulation structures are widely used.

However, when the heat insulating material is disposed outside the concrete wall in the outside heat insulating structure, it is necessary to further cover the outside of the heat insulating material with some kind of exterior material. A structure is adopted in which an exterior layer such as bricks, concrete panels, and wooden walls are overlapped by adding an air layer of appropriate width to the outside of the building, but such overlapping addition structure increases construction cost. On the other hand, there is a disadvantage that the wall is thick and an extra site area is required. In particular, the latter disadvantage is unacceptable in a narrow land state such as Japan.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to realize an external heat insulating structure while suppressing an increase in construction cost and an increase in the thickness of a wall.

[0007]

Means for Achieving the Object As a means for achieving the above object, the present invention relates to a plate-like body which is formed by bonding and hardening a hydraulic material as a main component, and wherein an outdoor outside inside the plate-like body is provided. Next, an external heat insulating wall material in which a large number of hollow aggregates sealed with air are included to form an external heat insulating layer is proposed.

[0008] The "hydraulic material" in the present invention includes:
Portland cement, gypsum, granulated slag, gypsum slag cement, lime slag cement, and various other hydraulic materials are used. In practice, these hydraulic materials are used as a main component, and are usually mixed with ordinary aggregates such as jam, rock wool, glass wool, various fibers, reinforcing bars, wire mesh, and other various reinforcing materials and additives. In addition, the “plate-like body”
It is used as a general term for shapes of panels, blocks and the like. In addition, the above "air-sealed hollow aggregate"
Spherical bodies, cylindrical bodies, irregularly shaped bodies, and the like, which are made of glass, synthetic resin, ceramic, slag, or other various materials and have air sealed therein, are used. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0009]

FIG. 1 shows an example in which the present invention is applied to an external heat insulating concrete panel (1). Portland cement is used as a hydraulic material, sand and water are mixed in a required ratio, and aggregate (3). In this example, recycled aggregate is mixed in the room and bonded and hardened. Inside the plate-shaped concrete body (2), a glass hollow aggregate (4) with air sealed inside and outside the room. Are buried adjacent to each other, thereby forming an outer heat insulating layer (5) composed of the hollow aggregates (4).

[0010] The outer insulating concrete panel of the above example (1) ...
When the outer heat-insulating layer (5) is attached to a concrete building with the outer heat-insulating layer (5) facing the outside of the room, the concrete heat-insulating layer (5) is provided only with the concrete panels (1). It is only necessary to apply the exterior such as painting and tiling on the exterior side of the concrete panel (1) ... and the interior such as wallpaper application on the interior side, so that the construction cost can be reduced and the wall thickness can be reduced. It is not limited to the thickness of the concrete panel (1), and the site area is not short.

FIG. 2 shows another example (1a) applied to an outer heat-insulating concrete panel. Reinforcing bars (6a) are provided at appropriate intervals in the middle of a concrete plate-like body (2a) thicker than the example of FIG. At the same time, the spherical hollow aggregate made of synthetic resin (4
a) an outer heat insulating layer (5a) on the outdoor side consisting of ... and an outer heat insulating layer (5a ') consisting of a spherical hollow aggregate made of synthetic resin (4a') having a smaller diameter. And other structures are substantially the same as those in FIG.

In each of the above examples, the outer heat insulating layers (5), (5)
a) and (5a ′) have a structure in which hollow aggregates having the same diameter are buried in adjacent states, and in addition, as shown in FIG. 3, small-diameter hollow aggregates are arranged between adjacent large-diameter hollow aggregates (4b). Aggregate (4b ')
... may be buried. According to this example, it becomes possible to bury each hollow aggregate densely, and the outer heat insulating layer (5
b) The heat insulation performance is improved as a whole.

FIG. 4 shows an embodiment in which the gypsum panel is used for an outer heat-insulating gypsum panel (1c). Gypsum is used as a hydraulic material, and glass wool (3c). A glass hollow hollow aggregate (4c) ... is buried outside the interior of the plate-like body (2c) to form an outer heat insulating layer (5).
c) is formed, and paper protection sheets (7c) and (7c) are joined to both sides of the gypsum plate (2c).

The outer heat-insulating gypsum board (1c) of the above example is mounted on a wall of a wooden building with its outer heat-insulating layer (5c) facing the outside, and its outside surface is covered with, for example, an exterior material of waterproof decorative plywood. , The outer insulation wall is obtained. The wall according to this example is
The thickness is almost the same as that of the conventional inner heat insulating wall.

FIG. 5 shows another example (1d) applied to the outer heat-insulated gypsum panel. A large-diameter spherical hollow aggregate made of synthetic resin (FIG. 4) is placed on the outdoor side of a gypsum plate-like body (2d) thicker than the example of FIG. 4d) ...
External heat insulating layer (5) consisting of small-diameter spherical hollow aggregate (4d ')
d) is formed, and the exterior material (8d) of, for example, waterproof decorative plywood is joined to the outdoor side surface of the gypsum plate-like body (2d), and the reinforcing material (9d) of plywood is joined to the indoor side surface. 4 is substantially the same.

When the external heat-insulating gypsum panel (1d)... Of the above example is mounted on the wall of a wooden building with its external heat-insulating layer (5d) facing the outside, an external heat-insulating wall is immediately obtained. The thickness of the wall according to this example is almost the same as that of the conventional inner heat-insulating wall, and the construction efficiency is greatly improved.

Since the outer heat-insulating wall material of each of the above examples contains a large number of hollow aggregates therein, it has sufficient strength as a wall material and also has light weight.

[0018]

The outer heat insulating wall material of the present invention has an outer heat insulating layer made of hollow aggregate inside and outside of the interior of the wall material. Compared with the wall, the construction cost can be greatly reduced, and since the thickness of the obtained wall is not increased, the external insulation wall can be realized without shrinking the site area. is there. Further, since the outer heat insulating wall material of the present invention includes a large number of hollow aggregates therein, it has sufficient strength and light weight as a wall material, thereby contributing to improvement in building safety and workability. .

[Brief description of the drawings]

FIG. 1 is a partially omitted horizontal cross-sectional view of an external heat-insulating concrete panel.

FIG. 2 is a cross-sectional view of another example of the external heat-insulating concrete panel.

FIG. 3 is a partially enlarged sectional view showing another example of the outer heat insulating layer.

FIG. 4 is a partially omitted cross-sectional view of the outer heat-insulating gypsum panel.

FIG. 5 is a transverse cross-sectional view of another example of the external heat-insulating gypsum panel.

[Explanation of symbols]

1, 1a, 1b Outer insulating concrete panel 1c, 1d Outer insulating plaster panel 2, 2a, 2b Concrete plate 2c, 2d Plaster plate 4, 4a, 4a ', 4b, 4b', 4c, 4d, 4d '
Hollow aggregate 5, 5a, 5a ', 5b, 5c, 5d Outer insulation layer

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Claims (1)

[Claims] 1. A plate-like body made of a hydraulic material as a main component and bonded and hardened, wherein a large number of air-sealed hollow aggregates are contained inside and outside the plate-like body to form an outer heat-insulating layer. Outer insulation wall material formed.