JP2002317453A - Method for construction of foundation by formwork of flame resistant foamed synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a formwork of flame resistant foamed synthetic resin which will not burned when fire occurs, and which can be efficiently finished and composed, and a method for construction of foundation using the formwork. SOLUTION: Engagement blocks 2 of a protruded rectangular form are molded and arranged in zigzag arrangement in such a way that they can be engaged with each other at an upper surface and a bottom surface, and a proper number of interval holding members 3 are embedded to be parallel to the vertical direction in the flame resistant foamed synthetic resin formwork 1. Foundation formwork is composed in such a way that the holders disposed in one surface of the interval holding members 3 face each other, holding metal fittings are inserted into holding holes in the holders to keep an interval, and concrete is placed in the foundation formwork. To one surface where the holders of the interval holding members 3 are not disposed, lateral grooves, vertical grooves, and polygonal or circular recessed parts are disposed in the surface of the flame resistant foamed synthetic resin formwork 1 that is level to the surface. Mortar finishing or tile finishing is performed to fill the lateral grooves, the vertical grooves, and the polygonal or circular recessed parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork for use in constructing a foundation of a building structure such as a house, and to reduce the weight and efficiency by directly covering a mortar or a tile. TECHNICAL FIELD The present invention relates to a flame-retardant foamed synthetic resin form having heat insulation and fire resistance, and a foundation construction method using the form.

[0002]

2. Description of the Related Art Conventionally, when a foundation of a building structure such as a house is constructed, a plywood panel or a metal panel is assembled on a base concrete, and concrete is poured into a formwork provided with reinforcing bars. I was In recent years, in cold regions and the like, a foamed synthetic resin form such as expanded polystyrene, which is also effective as a heat insulating material, has been used instead of the plywood panel or the metal panel.

The foamed synthetic resin form has a thickness of 50 mm.
There is a thing of a flat shape of a degree, a thing molded into a hollow block shape, and assembling it up, down, left and right, and the like. After building a foundation using the foamed synthetic resin form, a lath net or a lath plate is formed on the outer surface. Mortar finish and tile finish.

[0004]

However, after a foundation is constructed using the above-mentioned flat or hollow block-shaped foam synthetic resin form, a mortar finish is directly applied to the foam synthetic resin form to finish the outer surface. When tile finish is done,
When a fire occurs, there is a problem in that heat is conducted through the mortar or tile and reaches the inside of the foamed synthetic resin form to melt or burn the foamed synthetic resin form.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has an effect as a heat insulating material. Use of a flame-retardant foam synthetic resin form and a form that does not dissolve or burn the foam synthetic resin form, and can also efficiently finish the outer surface and assemble the base form. The purpose is to provide a basic construction method.

[0006]

In order to solve the above-mentioned problems, in the foundation construction method using a flame-retardant foamed synthetic resin form of the present invention, the top and bottom surfaces are set to have a thickness of 50 to 60 mm and an arbitrary width and height. The flame-retardant foam is formed by arranging a mating block 2 of a convex rectangular shape in a staggered manner so that both surfaces can be fitted to each other, and burying an appropriate number of spacing members 3 in parallel to the longitudinal direction. In the synthetic resin form 1, a base form is assembled with the holding tools 4 disposed on one surface of the spacing member 3 facing each other to assemble the base form, and the holding fitting 7 is inserted into the holding hole 5 in the holding tool 4. The spacing is maintained by inserting, and concrete is poured into the foundation formwork.

On one side of the space holding member 3 on which the holder 4 is not provided, a horizontal groove 9 and a vertical groove intersecting with the surface of the flame-retardant foamed synthetic resin form 1 flush with the surface. 10 and further, a polygonal or circular concave portion 8 is disposed in a portion surrounded by the horizontal groove 9 and the vertical groove 10, and a polygonal or circular concave portion in the groove of the horizontal groove 9 and the vertical groove 10. 8. Perform mortar finish and tile finish to fill the inside of 8.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a method of assembling a flame-retardant foamed synthetic resin form in a foundation construction method using the flame-retardant foamed synthetic resin form of the present invention, and FIG. 2 is an enlarged perspective view taken along the line AA of FIG. FIG.

[0009] As shown in FIG.
Flame-retardant foam synthetic resin form 1 in mm and width and height are optional
In the step (1), the fitting blocks 2 of a convex rectangular parallelepiped are formed in a staggered arrangement so that the upper surface and the bottom surface can be fitted to each other.
This is for the purpose of preventing the flame-retardant foamed synthetic resin form 1 from shifting or bulging at the connecting portion when the flame-retardant foamed synthetic resin form 1 is vertically connected. This is because the mold can be removed from the mold during molding. Also,
A suitable number of the spacing members 3 are buried in parallel with the longitudinal direction of the flame-retardant foamed synthetic resin form 1 and molded. As shown in FIG. 2, a connection hole 6 is provided in an internal connection portion of the space holding member 3, and the left and right flame-retardant foam synthetic resin molds 1 of the space holding member 3 are joined to each other. 3 are buried. On one surface of each spacing member 3, a suitable number of holders 4 having holding holes 5 for inserting holding metal members 7 are provided.

FIG. 3 is a view showing a state in which a large number of horizontal grooves, vertical grooves and circular concave portions are provided on the surface of the flame-retardant foamed synthetic resin form of the present invention. On one side where is not disposed, a horizontal groove 9 and a vertical groove 10 intersecting with each other are disposed on the surface of the flame-retardant foamed synthetic resin form 1 flush with the surface. A polygonal or circular concave portion 8 is provided in a portion surrounded by 10. Although the illustrated concave portion 8 is circular, it may be rectangular or hexagonal. The depth of the horizontal groove 9 and the vertical groove 10 and the depth of the polygonal or circular concave portion 8 is preferably about 3 to 5 mm.

The flame-retardant foamed synthetic resin mold 1 is preferably made of a flame-retardant foamed synthetic resin capable of withstanding an oxygen index of 38 or more and a flame of 1300 ° C. for 1 minute or more. Further, it is more preferable to use a hard material because the nail can be hit directly.

[0012]

An embodiment of the present invention will be described with reference to the drawings. FIG.
After the holding metal fitting is inserted into the holding portion of the flame-retardant foamed synthetic resin form of the present invention and concrete is poured into the base formwork, mortar and tile are placed on the surface of the flame-retardant foamed synthetic resin form. It is the figure which showed the state which performed the finishing, and the state seen from the upper surface of the foundation.

As shown in FIG. 1, the base formwork is assembled with the holders 4 arranged on one side of the spacing member 3 of the flame-retardant foamed synthetic resin form 1 facing each other to assemble the rebar 1
Apply 1. Since the reinforcing bar 11 near the holding tool 4 on the left side in the drawing is on the left side of the holding tool 4, the holding metal 7 is inserted from the right side of the holding tool 4 so as to avoid the reinforcing bar 11. Since the reinforcing bar 11 'near the right holder 4' is on the right side of the holder 4 ', the holding metal 7' is inserted from the left side of the holder 4 'so as to avoid the reinforcing bar 11'. Thus, rebar 1
Since the holding fixture 7 can be inserted into the holding fixture 4 from an arbitrary direction on the left and right according to the position of 1, the efficient assembling of the base form can be performed.

After assembling the foundation form as described above, the concrete 12 is cast and the foundation is constructed. The effect is obtained as a material, and the flame-retardant foamed synthetic resin form 1 ′ on the inner surface is effective as a heat insulating material for internal heat insulation.

Further, if mortar 13 is applied to the surface of the flame-retardant foamed synthetic resin form 1 on the outer surface to finish the mortar, as shown in FIG. The mortar is buried in the lateral grooves 9 and the vertical grooves 10 and the polygonal or circular concave portions 8 formed on the mortar, so that the joining surface increases, and the adhesive strength of the mortar is improved. Mortar finish can be performed. In addition, tile finishing can be performed by setting a tile 14 on the surface of the mortar 13.

Further, when a fire strikes the mortar 13 or the tile 14 and the heat is conducted through the mortar 13 or the tile 14, the flame-retardant foamed synthetic resin mold 1 inside the mortar 13 or the tile 14 is not damaged.
Since it has fire resistance, it does not melt or burn.

[0017]

As described above, when the foundation of a building structure such as a house is constructed using the foundation construction method using the flame-retardant foamed synthetic resin form of the present invention, the flame-retardant foamed synthetic resin is used. Since the resin form itself has heat insulation properties, it exhibits the effect as a heat insulating material, and also has fire resistance, so when a fire occurs, heat conducts through the mortar or tile to melt or burn the foam synthetic resin form inside. I won't let you. In addition, the lateral grooves and vertical grooves and the polygonal or circular concave parts formed on the outer surface of the flame-retardant foamed synthetic resin form improve the adhesive strength of the mortar. This has the effect that the surface can be finished. Further, the holding portion provided on the space holding member allows the holding metal fitting to be easily inserted into the left and right arbitrary directions without being disturbed by the reinforcing bar, so that there is an effect that the basic form can be efficiently assembled.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a method of assembling a flame-retardant foamed synthetic resin form in a foundation construction method using a flame-retardant foamed synthetic resin form of the present invention.

FIG. 2 is an enlarged perspective view taken along the line AA of FIG. 1;

FIG. 3 is a view showing a state in which a large number of horizontal grooves, vertical grooves, and circular concave portions are provided on the surface of the flame-retardant foamed synthetic resin form of the present invention.

FIG. 4 is a diagram showing a state in which a holding bracket is inserted into a holding portion of the flame-retardant foamed synthetic resin form of the present invention and concrete is poured into a base formwork. It is a figure showing the state where mortar and tile finishing were performed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flame-retardant foam synthetic resin form 2 Fitting block 3 Spacing member 4 Holding part 5 Holding hole 6 Connecting hole 7 Holding metal fitting 8 Depression 9 Horizontal groove 10 Vertical groove 11 Reinforcing steel 12 Concrete 13 Mortar 14 Tile

Claims (2)

[Claims] 1. A fitting block (2) of a convex rectangular shape is arranged in a zigzag pattern so that the thickness and the height are arbitrary and the top and bottom surfaces can be fitted to each other. And a flame-retardant foamed synthetic resin form (1) in which an appropriate number of spacing members (3) are buried in parallel with the longitudinal direction.
In the above, the base form is assembled such that the holders (4) arranged on one side of the spacing member (3) face each other, and are held in the holding holes (5) in the holders (4). A foundation construction method using a flame-retardant foamed synthetic resin form, wherein a metal fitting (7) is inserted and a gap is maintained, and concrete is poured into the base form. 2. A surface of a flame-retardant foamed synthetic resin form (1), which is flush with one surface of one of the spacing members (3), on which one of the retainers (4) is not provided, intersects with each other. A horizontal groove (9) and a vertical groove (10) are provided, and a polygonal or circular concave portion (8) is further provided in a portion surrounded by the horizontal groove (9) and the vertical groove (10). The flame-retardant material according to claim 1, characterized in that mortar finishing or tile finishing is performed so as to fill the inside of the horizontal groove (9) and the vertical groove (10) and the inside of the polygonal or circular concave portion (8). Foundation construction method using foamed synthetic resin form.