JPH0227047Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a heat insulating material for roofing materials, wall materials, etc.

<Prior Art> Conventionally, the most commonly used thermal insulation materials as building materials have been plate-shaped materials made by mixing concrete, mortar, plaster, etc. with glass wool, foamed plastic, etc. However, although such a simple mixed plate material may have a heat insulating effect, it is brittle and cracks, so it can only be used as a base material.

<Problems to be solved by the invention> In view of the above-mentioned circumstances, the present invention aims to provide a heat insulating material that eliminates the above-mentioned defects by combining expanded styrene granules that provide a heat insulating effect and bags that serve as a waist member to form a concrete board. The purpose is to

<Means for solving the problem> The present invention involves mixing beads-shaped styrene foam granules by sprinkling them with cement powder, filling them into a bag, and flattening the bag to approximate the shape of a predetermined building material. A flat, lightweight core material is formed, and the entire surface of this flat, lightweight core material is covered with concrete to form a single board.

<Function> With the above structure, the foamed styrene granules themselves exhibit a heat insulating effect due to their heat insulating properties, and the foamed styrene granules are packed together with cement into a bag and the cement's hardening properties cause the foamed styrene granules to form. The body maintains a plate-like shape, and in combination with the flexibility of the bag itself, it presents a so-called stiff core material, which prevents cracks from forming on the surface of the board. Of course, it is lightweight as a whole.

<Example> Hereinafter, the present invention will be explained based on the drawings of the example.

1 is a bead-shaped (small sphere) expanded styrene granule with a particle size of about 3 to 5 mm, and an appropriate amount of the expanded styrene granule 1 is mixed with an appropriate amount of powdered cement 2, which will serve as a void filling material, and this state is prepared. In advance, fill a bag 3 made of woven or knitted fabric made of cotton, nylon, etc. sewn into a rectangular shape close to the size of a predetermined building material (3 shaku x 6 shaku or 2 shaku x 3 shaku), and flatten the bag 3. A flat lightweight core material 4 is formed. This flat lightweight core material 4 is inserted into a gap a of a predetermined building material size.
concrete 5 in the gap b between the formwork A and the flat lightweight core material 4.
The entire outer periphery of the flat lightweight core material 4 is covered with concrete 5 to an appropriate thickness, and when the formwork A is removed after the concrete 5 has cured, it becomes a single board 6, which is then combined with the insulation material 7. Become. By the way,
The thickness of the insulation material 7 is 2 to 2, which is the same as that of general building material boards.
It should be about 5cm.

The heat insulating material 7 formed in this way has the foamed styrene particles 1 packed in the bag 3 as a core material and cement 2, so it has the heat insulating effect of the expanded styrene particles 1 and bends with the fibers of the bag 3. The result is that the entire insulation material 7 is given a kind of stiffness due to the striation effect due to the
The heat insulating material 7 does not cause cracks on the surface of the heat insulating material 7 and is lightweight.

In this case, the cement 2 located in the bag 3 fills the voids in the 1 group of expanded styrene particles serving as the aggregate, and the cement paste of the concrete 5 penetrates into the bag 3 and absorbs this water. As a result, the cement 2 itself hardens and solidifies the group of expanded styrene particles into a plate shape.

<Effects of the invention> As mentioned above, the heat insulating material of the invention does not cause cracks on the surface by covering the concrete on the flat lightweight core material made of expanded styrene granules and cement. It can be used directly as roofing material and wall material. Of course, it may also be used as a base material. Moreover, since the expanded styrene granules are spread over the entire center of the board with an appropriate thickness, they have a heat insulating effect and a sound insulating effect, and the expanded styrene granules serve as a type of lightweight aggregate. Therefore, the entire board is also lightweight. Further, since the board itself may be slightly bent, it can be easily fitted into a building and has practical effects such as good workability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Figures 1A and B are partially cutaway slope views and cross-sectional views, Figure 2 is a slope view of a flat lightweight core material, and Figure 3 is a front view of expanded styrene granules. FIG. 4 is an explanatory view of filling the formwork with concrete. 1... Styrene foam granules, 2... Cement, 3
... Bag, 4 ... Flat lightweight core material, 5 ... Concrete.

Claims (1)

[Scope of utility model registration request] A mixture of expanded styrene granules and cement is filled into a rectangular bag made of woven or knitted fabric made of cotton, nylon, etc. to form a flat lightweight core material, and a constant thickness of concrete is poured around the entire outer periphery of the flat lightweight core material. Insulation material that forms layers to form a single board.