JPH06212722A - Constructing method for thermal insulating slab - Google Patents

Abstract

PURPOSE:To spread a thermal insulating plate made of a plastic foamed material while simply fixing a deck plate at the time of construction of the thermal insulating slab using the deck plate. CONSTITUTION:A thermal insulating plate 3 applied with a pressure sensitive adhesive 2 to its surface is used, and spread while fixing a deck plate 1 by an adhesive 2. Thus, the light thermal insulating plate 3 made of a plastic foamed material can be prevented from flying-off being due to wind, and can moreover be prevented from slippage even when the slab to be constructed has a slope, and the executing ability of the thermal insulating plate 3 can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a heat-insulated concrete slab in a building, and more particularly to a method of constructing a heat-insulating slab using a deck plate (floor steel plate).

[0002]

2. Description of the Related Art Conventionally, a construction method using a deck plate has been known as a construction method capable of reducing the weight of a building, shortening the construction period, reducing the construction cost, and improving the work safety.

The construction method using the deck plate is mainly applied to a steel reinforced concrete (SRC) building or a reinforced concrete (RC) building, and the deck plate is laid as a formwork to construct a floor or roof slab. Then, concrete is placed on it and concrete is placed to construct a synthetic roof slab or a synthetic floor slab of deck plate and concrete.

On the other hand, the roof is preferably heat-insulated in order to protect the building from sunlight during the day and reduce the heat transfer in the heating and cooling, and the floor is also heat-insulated in order to improve the cooling and heating effect. It is preferable.

As the above-mentioned heat insulation construction, a heat insulating plate made of a plastic foam is laid on the laid deck plate, and after that, the concrete is arranged by arranging the concrete to insulate the synthetic roof slab or the synthetic floor slab. It is possible to interpose a plate.

[0006]

However, since the heat insulating plate made of plastic foam is lightweight, there is a problem that the heat insulating plate laid on the deck plate is easily blown off by the wind, resulting in poor workability. In particular, when building a roof with a slope that has been popular in recent years, since a heat insulating plate is laid on the inclined surface composed of deck plates, there is a problem that the heat insulating plate is likely to be displaced due to the inclination even if there is no wind. is there.

In order to solve the above problem, the heat insulating plate may be fixed to the deck plate, but if a stopper is used, a special stopper must be prepared, which leads to an increase in cost. At the same time, the workability is likely to deteriorate. In addition, the use of an adhesive takes time and effort for application and requires a curing time, so that workability is poor, and in particular, a solvent-type adhesive requires a safety measure against a volatile solvent.

The present invention has been made in view of the above problems, and when a heat insulating slab using a deck plate is constructed, a heat insulating plate made of plastic foam can be laid easily while being fixed to the deck plate. The purpose is to do.

[0009]

The means taken by the present invention for this purpose will be described with reference to FIG. 1. In the present invention, the deck plate 1 is used for the construction of an insulated concrete slab.
After laying, the heat insulating plate 3 made of plastic foam and having the adhesive 2 attached on the surface in advance is adhered and fixed to the deck plate 1, and then concrete 4 is placed on the heat insulating plate 3. It is what is said.

[0010]

The adhesive 2 attached to the heat insulating plate 3 is for fixing the heat insulating plate 3 to the deck plate 1. The heat insulating plate 3 should be laid on the deck plate 1 with the adhesive 2 side facing down. Then, the heat insulating plate 3 can be fixed onto the deck plate 1 with one touch.

[0011]

EXAMPLE First, as shown in FIG. 1A, a deck plate 1 is laid and fixed by being bridged between beam portions (steel beam or beam form) 5.

The deck plate 1 may have a corrugated cross section as shown in FIG. 2A, but FIG.
It is preferable that the deck plate has a large number of rib pieces having an L-shaped cross section formed on the back surface and has a flat top surface, as shown in FIG. In the case of this L-shaped deck plate with ribs, since the upper surface is flat, there is an advantage that a wide adhesive area can be easily obtained and the heat insulating plate 3 can be easily stabilized when the heat insulating plate 3 described later is adhesively fixed with the adhesive 2. .

Next, as shown in FIG. 1 (b), a heat insulating plate 3 made of plastic foam is laid on the deck plates 1 arranged side by side.

As shown in the enlarged view of FIG. 3, the heat insulating plate 3 has a pressure sensitive adhesive 2 attached to one surface thereof.
By laying on the deck plate 1 with the side facing down,
It is adhesively fixed on the deck plate 1.

The pressure-sensitive adhesive 2 may be attached to the entire one surface of the heat insulating plate 3, or may be attached partially if it is substantially uniform, for example, in the shape of a stripe, a lattice, or dots.
Further, in any case, in order to improve the handling property up to the laying of the heat insulating plate 3, it is preferable to cover the attachment surface of the adhesive 2 with a release paper.

As the plastic foam forming the heat insulating plate 3, for example, a foam plate made of polystyrene, polyurethane, polyethylene, polyvinyl chloride, phenol resin or the like can be used, preferably a polystyrene foam plate.

The size of the heat insulating plate 3 may be selected according to the construction area or the like, but is usually 600 to 1000 mm × 160.
A rectangle of about 0 to 2000 mm is easy to handle. The thickness of the heat insulating plate 3 is selected according to the necessary heat insulating property, but is generally about 20 to 50 mm.

After laying the heat insulating plate 3 and adhesively fixing it, FIG.
As shown in (c), the heat insulating slab is usually constructed by placing concrete 4 after arranging.

When an inclined surface is formed by the L-shaped ribbed deck plate and the heat insulating plate 3 with the adhesive 2 is laid on it, there is no scattering or slipping off due to wind, Good workability could be obtained. However, the heat insulating plate 3 with the adhesive 2 has a thickness of 30 mm and a width of 910.
An expanded polystyrene plate having a length of 18 mm and a length of 1820 mm (“Styrofoam B2” manufactured by Dow Kako Co., Ltd.) was coated with adhesive 2 on one side and covered with release paper.

Also, a horizontal surface is formed by the deck plate with L-shaped ribs, and the adhesive 2 is applied to the entire surface of one side of a polystyrene foam plate ("Styrofoam B2" manufactured by Dow Kako Co., Ltd.) having a thickness of 25 mm, a width of 910 mm and a length of 1820 mm. When the heat-insulating plate 3 attached with and covered with release paper is used as the heat-insulating plate 3 with the adhesive 2, and the heat-insulating plate 3 is laid, no scattering due to the wind occurs and good workability can be obtained. did it.

[0021]

The present invention is as described above and has the following effects.

(1) Since the heat insulating plate 3 can be easily adhered and fixed onto the deck plate 1 when the heat insulating plate 3 is laid, the heat insulating plate 3 is not blown or slipped by the wind and the deck plate 1 is used. The heat insulation construction of the existing synthetic slab can be performed efficiently and safely.

(2) Normally, the heat insulating plate 3 needs to estimate the loss of the scraps generated when laying it by 5 to 10%, but even the scraps can be easily adhered and fixed onto the deck plate 1 for use. Since it can be done, there is almost no need to estimate the loss.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a construction procedure of the present invention.

FIG. 2 is an explanatory diagram of a deck plate.

FIG. 3 is an enlarged view of a heat insulating plate.

[Explanation of symbols]

 1 Deck plate 2 Adhesive 3 Heat insulating plate 4 Concrete 5 Beam part

Claims (3)

[Claims] 1. When constructing a heat-insulated concrete slab, after laying a deck plate, a heat-insulating plate made of plastic foam and having an adhesive on its surface is adhesively fixed to the deck plate. A method for constructing a heat insulating slab, characterized by placing concrete on this heat insulating plate later. 2. The method for constructing a heat-insulating slab according to claim 1, wherein the deck plate is a deck plate having L-shaped ribs having a L-shaped cross section formed on the back surface and having a flat upper surface. . 3. The method for constructing an insulating slab according to claim 2, wherein the slab is a pitched roof slab.