WO1988006220A1

WO1988006220A1 - Method of flooring ground in a house

Info

Publication number: WO1988006220A1
Application number: PCT/JP1987/000424
Authority: WO
Inventors: Yukihisa Ebara
Original assignee: Dow Kakoh Kabushiki Kaisha
Priority date: 1987-02-20
Filing date: 1987-06-25
Publication date: 1988-08-25
Also published as: AU7582287A; AU614930B2; JPH0558111B2; JPS62225658A

Abstract

Method of flooring ground in house which includes laying plastic films and foamed synthetic resin plates on the ground, wherein the plastic films are bonded to the lower surface or the both surfaces of the synthetic resin plates in advance.

Description

Description .--Name of invention

Soil floor construction method

Technical field

The present invention relates to a method of constructing a floor between floors by forming a floor on the ground without leaving a space under the floor, and making the floor excellent in heat insulation, moisture resistance, sound insulation and the like.

Landscape technology

Conventionally, the construction of the floor is done by embankment as necessary, adjusting the ground height, laying the split chestnuts, and then separating the plastic film (hereinafter referred to as “film”) and the heat insulation material separately. And concrete is placed on top of it. As a heat insulating material, a rigid synthetic resin foam board (hereinafter referred to as a “foam board”) is usually used, and the film functions as a moisture-proof layer.

By the way, the top surface of the split chestnut is sprinkled with some sand to smooth the surface, but if this sand is thickly covered with the split chestnut layer, the floor becomes unstable. It is inevitable that the split chestnut will abut the film and insulation on it. In addition, since the film and the heat insulating material are laid separately and over a wide area, when laying the heat insulating material after laying the film, the heat insulating material must be laid on the film. It cannot be obtained, and after laying the heat insulating material, the concrete must be laid on this.

As described above, the film and the heat insulating material are often stepped on the split chestnut, so the film may hit the corner of the split chestnut during the laying work, or the worker may break the film. There is a possibility that the desired moisture resistance may not be obtained. In addition, when foamed foam is used as heat insulating material, it is not only easy to crack due to work aging, but also lightweight. As a result, the rupture is scattered by the wind and is lost, which may cause a decrease in new heat property.

* The invention aims to prevent a decrease in moisture resistance due to film breakage during construction of a soil floor and a decrease in heat insulation due to cracked and missing foam boards. The above-mentioned object is achieved by laying stone on the ground, laying foam on which a film is bonded on the lower surface or both surfaces in advance, and laying a concrete thereon. .

According to the above-mentioned thick invention, since the film for imparting moisture-proof property to the slab to be constructed and the foam, which is a newly matured material, are joined in advance, both are laid at the same time. Therefore, the workability is better than the conventional method of laying the film and laying the foam board separately. Also, since the film and foam can be laid directly on the film without the need for workers, and because the film is pre-bonded and integrated with the foam board, it is less likely to break during construction. It is unlikely that the film becomes damaged due to film damage.

On the other hand, by bonding the film in advance to the lower surface or both surfaces of the Koshi Azaka slope, the foam board is reinforced, and even if an operator rides on the foam board at the time of placing concrete, the foam board is not damaged. It is difficult to crack. Also, even if the foam board breaks, the broken part is held by the film and is not blown away by the wind, so there is no significant drop in heat insulation due to the missing part.

In particular, if the film is bonded to both sides of the foam board in advance, the moisture-proof structure is made up of the upper and lower films, which provides a synergistically high moisture-proof effect, and foams between both films. By sandwiching the board, the reinforcement of the foam board can be enhanced.

Hereinafter, the present invention will be described in more detail with reference to the drawings. -Fig. 1 is constructed using foam 扳 4 with film 3 joined to the lower surface in advance. FIG. 2 is a longitudinal sectional view showing a part of the soil floor, which is constructed by using a foam plate 4 in which films 3a and 3b are previously joined to both sides, and FIG. Fig. 3 is an explanatory view of laying a foam board 4 to which a film 3 has been previously bonded to the lower surface. Figs. 4 and 5 show a foam board 4 to which films 3a and 3b have been previously bonded to both sides, respectively. It is explanatory drawing at the time of laying.

In Fig. 1 and Fig. 2, reference numeral 6 denotes a foundation. First, the height of the ground 1 inside the foundation is adjusted by embankment as necessary. It is preferable to provide a heat insulating material 7 on the outer surface of the foundation 6 in order to prevent heat from escaping from the side. The heat insulating material 7 may be made of the same material as the foam plate 4 described later, or may be made of another material.

The stone 2 is laid on the ground 1 inside the foundation 6. As the stone material 2, for example, chestnut, gravel, pebbles, etc. are used.

The thickness of the layer of the stone 2 may be appropriately determined according to the hardness of the ground 1 and the like. Further, it is preferable that sand 8 is spread on the surface of the stone 2 so as to fill the gap between the stones 2 and the upper surface thereof is made substantially flat. By doing so, the film 3 or the foam plate 4 with the films 3a and 3b to be laid next can be easily installed horizontally, and the floor can be easily made horizontal.

Next, a foam plate 4 having the film 3 on the lower surface or the films 3a, 3b on both surfaces is laid on the stone 2 in advance.

Films 3, 3a and 3b have a thickness of about 20 to 100, for example, such as polyethylene, polypropylene, polyvinyl chloride, etc. A material obtained by coating or laminating a heat-sealable plastic can be suitably used. With such films 3, 3a and 3b, bonding to the foamed plate 4 can be performed by utilizing the heat sealing of the heat-sealable plastic layer. However, another film may be joined to the foam plate 4 with an adhesive or the like. It is preferable that Kishibu 4 be rigid to withstand the load from the floor. Specific examples include foams such as polystyrene, polyurethane, polyethylene, polyvinyl chloride, and phenol caustic, and foams obtained by adding an inorganic filler to these plastics. Most preferably, it is an extruded foamed polystyrene such as Styrofoam [trade name]. Since the foam plate 4 is protected from moisture by the film 3 on the lower surface or the films 3a and 3b on both surfaces, a cut board may be used instead of a skin board. In addition, it is preferable that Kishifoam 4 has a compressive strength of about 2 kgf / cm 2 or more so as to withstand a load.

If the temperature inside the room rises excessively on the clay floor, heat to the ground 1 to some extent! However, it is preferable to have a function of storing heat in the ground 1 in combination with the provision of the heat insulating material 7 on the outer surface of the foundation and releasing the heat into the room when the temperature of the room decreases. From this, the foamed board 4 should have a thermal conductivity of about 0.015 to 0.040 kca ^ Hr '° C, a thickness of 20 to 100 mm, and optimally 25 It is preferably about 50 mm.

When laying the foam plate 4 in which the film 3 is bonded to the lower surface or the films 3a and 3b are bonded to both surfaces in advance, the side surfaces of the foam plates 4 which are in contact with each other may be simply arranged side by side. In order to increase the moisture resistance of the eye part, it is preferable to do the following.

First, as shown in Fig. 3 and Fig. 4, film 3 or film 3a (or film 3b) may be protruded outward from the foam 4 and then placed on top of it. By laying while stacking the film 3 or the foam plate 4 with the films 3a and 3b to be in contact with each other, it is possible to enhance the moisture resistance of the joints. Also, as shown in FIG. 5, both films 3a and 3b are projected outside the foam plate 4 so that the butted portions of the foam plates 4 are covered with the projected portions from above and below. By doing so, it is possible to further enhance the moisture resistance of the mesh portions. The concrete 5 is cast on the foam plate 4 with the film 3 or film 3a7 3b laid as described above, and the upper surface is leveled and finished with mortar 9 to complete the construction of the earthen floor. I do. If the floor area is large, it is preferable to place concrete 5 after arranging it on the foam plate 4 with the film 3 or the films 3a and 3b.

In FIGS. 1 and 2, 10 is a mortar for finishing 6 parts of the foundation, 11 is a base, 12 is an outer wall material, and 13 is a caulking.

According to the present invention, the moisture resistance of the floor is greatly reduced due to damage to the film 3 or the films 3a, 3b during construction, and the heat insulation is significantly reduced due to cracks in the foam plate 4. It is easy to obtain a comfortable indoor environment as designed. It also improves construction efficiency and shortens work time.

BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 is a cross-sectional view showing a part of a masonry floor constructed using a foam board with a film bonded to the lower surface in advance, and Fig. 2 is a cross-sectional view of a masonry floor constructed using a foam board with a film bonded to both sides in advance. Fig. 3 is an explanatory view of laying a foam board with film 3 bonded on the lower surface in advance, and Figs. 4 and 5 show a foam board with film bonded on both sides in advance. It is explanatory drawing at the time of laying.

Claims

1) It is characterized by laying stone on the ground, laying a synthetic resin foam board insulation material with a plastic film joined on the lower surface in advance, and placing concrete on it. Soil floor construction method.

2) A special feature is that stone is laid on the ground, and synthetic resin foam insulation with plastic films bonded on both sides in advance is laid on it, and concrete is cast on it. Slab floor construction method.