JPH0754433A - Heat insulating plate and construction method of heat insulating slab making use thereof - Google Patents

Abstract

PURPOSE:To make it possible to construct a heat insulating plate of a plastic foamable body while fixing it simply to a deck plate in the case a heat insulating slab using the deck plate is constructed. CONSTITUTION:One side edge section is left over as a non-adhesive section on one side of a heat insulating plate to provide an adhesive 3, and the heat insulating plate 1 is fixed with the adhesive 3 while setting a position with the side edge section as the non-adhesive section as an earth point. The heat insulating plate 1 can simply adhere and fix, at the same time, the position can be set while preventing the heat insulating plate 1 from unslipping, so that positioning work can be facilitated.

Description

Detailed Description of the Invention

[0001]

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

[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. It is a method of constructing a composite roof slab or a composite floor slab of deck plate and concrete by placing concrete on it.

On the other hand, it is preferable that the roof is heat-insulated in order to protect the building from the sunlight in the daytime and to reduce the heat transfer of air conditioning, and the floor is also heat-insulated in order to improve the air conditioning effect. Is preferred.

As the above-mentioned heat insulation construction, a heat insulating plate made of plastic foam is laid on the laid deck plate, and after the laying, the reinforcing bars are reinforced and concrete is laid, whereby the heat insulating plate is put in the synthetic roof slab or the synthetic floor slab. It is possible to intervene.

[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 can be fixed to the deck plate, but if the stopper is used, a special stopper must be prepared,
Not only will this lead to higher costs, but the workability will also deteriorate. In addition, the use of an adhesive takes time and effort for application and requires a curing period, 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 in constructing a heat insulating slab using a deck plate, a plastic foam heat insulating plate can be easily laid while being fixed to the deck plate. The purpose is to do.

[0009]

To this end, according to the first aspect of the present invention, as shown in FIG. 1, a plastic foam used for constructing a heat insulating slab using a deck plate 4 (see FIG. 3) is used. The pressure-sensitive adhesive 3 is attached to one surface of the heat insulating plate 1 while leaving at least one side edge portion as the non-adhesive portion 2.

According to the second aspect of the present invention, as shown in FIG. 3, after the deck plate 4 is laid, the heat insulating plate 1 made of plastic foam and having the adhesive 3 attached to one side thereof is attached to the deck plate 4. The heat insulating plate 1 according to the invention of claim 1 is used as the heat insulating plate 1 to which the adhesive 3 is attached when constructing a heat insulating slab in which the concrete 5 is placed on the heat insulating plate 1 by adhesively fixing it to the heat insulating plate 1. Then, the heat insulating plate 1 is adhered and fixed while performing the alignment using the peripheral portion of the heat insulating plate 1 which is the non-adhesive portion 2 as a ground point.

[0011]

The adhesive 2 attached to the heat insulating plate 1 is for fixing the heat insulating plate 1 to the deck plate 4, and the heat insulating plate 1 should be laid on the deck plate 4 with the adhesive 2 side facing down. Then, the heat insulating plate 1 can be fixed onto the deck plate 4 with one touch.

By the way, the adhesive 3 is applied to the entire one surface of the heat insulating plate 1.
Is attached, it becomes difficult to adjust the deviation of the fixed position.

Therefore, in the present invention, at least one side edge portion of the heat insulating plate 1 is left as the non-adhesive portion 2, and even if the side edge portion which has become the non-adhesive portion 2 is used as the ground point and is applied to the deck plate 4, it is not adhered. This makes it easier to perform the alignment work.

[0014]

FIG. 1 shows an embodiment of a heat insulating plate 1 according to the present invention. The heat insulating plate 1 has a plate-like body made of a plastic foam and an adhesive 3 attached to one side thereof. Has become.

Examples of the plastic foam forming the heat insulating plate 1 include foams such as polystyrene, polyurethane, polyvinyl chloride, and phenol resin, and among them, polystyrene foam is preferable.

The size of the heat insulating plate 1 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 1 is selected according to the required heat insulating property, but is generally about 20 to 50 mm.

The adhesive 3 is attached with one side edge portion of the heat insulating plate 1 left as the non-adhesive portion 2. The one side edge portion that has become the non-adhesive portion 2 is used as a grounding point at the time of alignment as described above, and the non-adhesive portion 2 is colored, the adhesive 3 is colored, and the like. It is preferable that the adhesive portion 2 be easily identified.

The non-adhesive portion 2 may be provided at only one side edge portion as shown in FIG. 1, but may be provided at four side edge portions as shown in FIG. When the non-adhesive portions 2 are provided on all sides, the adhesive 3 does not get on the hand even when the operator grips the peripheral portion of the heat insulating plate 1, and the heat insulating plate 1 becomes easy to carry.
Either side can be used as a grounding point during alignment,
Work becomes easier.

The non-adhesive portion 2 in the present invention is not limited to the above-mentioned one-side edge portion or four-side edge portion, but may be provided at the two-side edge portion or the three-side edge portion.

The pressure-sensitive adhesive 3 may be attached to the entire solid surface of the attachment area, but may be a partial shape such as a stripe shape, a grid shape, or a dot shape as long as it is substantially uniform on the entire attachment area. In any case, in order to improve the handling property up to the laying of the heat insulating plate 1, it is preferable to cover the attachment surface of the adhesive 3 with release paper.

Next, a construction method using the heat insulating plate 1 will be described with reference to FIGS. 3 and 4.

First, as shown in FIG. 3 (a), the deck plate 4 is laid between the beam portions (steel beam or beam form) 6 and fixed by laying.

The deck plate 4 may have a corrugated cross section as shown in FIG. 4 (a), 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 when the heat insulating plate 1 is adhesively fixed with the adhesive 3, and the heat insulating plate 1 can be easily stabilized.

Next, as shown in FIG. 3B, the heat insulating plate 1 is laid on the deck plates 4 arranged side by side.

The heat insulating plate 1 is laid so that the pressure sensitive adhesive 3 side is on the lower side so that the heat insulating plate 1 can be adhesively fixed onto the deck plate 4 by the pressure sensitive adhesive 3. At the time of this laying, the edge part which became the non-adhesive part 2 of the heat insulation board 1 is grounded on the deck plate 4, and the heat insulation board 1 can be easily aligned by tilting and shifting. .

After the heat insulating plate 1 is adhesively fixed at a predetermined position in this manner, as shown in FIG. 3 (c), the heat insulating slab is usually constructed by placing concrete 5 after arranging. It

[0027]

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

(1) Since the heat insulating plate 1 can be easily adhered and fixed onto the deck plate 4 when the heat insulating plate 1 is laid, the heat insulating plate 1 does not fly or slip due to wind, and the deck plate 4
Heat insulation construction of synthetic slabs using can be performed efficiently and safely.

(2) The heat insulating plate 1 which has become the non-adhesive portion 2 is aligned by using the peripheral portion of the heat insulating plate 1 as a grounding point, so that it is possible to prevent the heat insulating plate 1 from being easily displaced by the adhesion of the adhesive 3 during the alignment. It is possible to perform the alignment while doing so, and the alignment work becomes easy.

(3) Normally, it is necessary for the heat insulating plate 1 to estimate the loss of the scraps generated when laying it by about 5 to 10%, but even the scraps can be easily fixed to the deck plate 4 by adhesion. Since it can be used as it is, there is almost no need to estimate the loss.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a heat insulating plate according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the heat insulating plate according to the present invention.

FIG. 3 is an explanatory diagram of a construction procedure of the present invention.

FIG. 4 is an explanatory diagram of a deck plate.

[Explanation of symbols]

 1 Insulation board 2 Non-adhesive part 3 Adhesive 4 Deck plate 5 Concrete 6 Beam part

Claims (2)

[Claims] 1. A heat insulating plate made of a plastic foam used for constructing a heat insulating slab using a deck plate, and having a pressure sensitive adhesive attached to one surface thereof while leaving at least one side edge portion as a non-sticky portion. Insulation board characterized by. 2. An insulating slab in which a deck plate is laid, a heat insulating plate made of plastic foam and having an adhesive on one side is adhesively fixed to the deck plate, and then concrete is placed on the heat insulating plate. In the construction of, the heat insulating plate according to claim 1 is used as a heat insulating plate provided with an adhesive, and the heat insulating plate is aligned while the non-adhesive portion of the heat insulating plate is used as a ground point for alignment. A method for constructing a heat insulating slab, characterized in that it is adhesively fixed.