JPH08284298A - Installation construction method of embedding material in base plate for concrete slab - Google Patents

Abstract

PURPOSE: To fix an embedding material made of a plastic foaming body arranged on a base plate for a concrete slab in the base plate for the concrete slab rigidly with nearly uniform fixing force. CONSTITUTION: A plural number of through holes for mortar filling are previously provided on an embedding material made of a plastic foaming body with specified intervals between the holes. Thereafter, after the embedding material 2 is arranged on an upper surface of a base plate 1 for a concrete slab, mortar 4 is filled into the through holes and the embedding material 2 is fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting an embedding material on a concrete slab substrate, and more particularly, to an embedding material made of a plastic foam on the concrete slab substrate almost uniformly over the entire embedding material. The method of mounting the embedding material on the substrate for concrete slab, which is effective for fixing it with various fixing forces.

[0002]

2. Description of the Related Art In recent years, there has been a demand for development of a technique for reducing the weight of a building as it becomes taller and larger.

Regarding one of the concrete slab construction methods, a technique has been developed and put into practical use in which a concrete layer and a plastic foam are combined to achieve weight reduction, sound insulation and heat insulation.

As a conventional technique of this kind, there are techniques described in, for example, Japanese Patent Laid-Open No. 54-124524 and Japanese Patent Publication No. 57-47007.

By the way, in such a concrete slab construction method, after the embedding material made of plastic foam is placed on the concrete slab substrate and before the concrete is placed on the embedding material, the embedding material is embedded in the concrete slab substrate. It is necessary to fix the material. Therefore, conventionally, as shown in Japanese Patent Publication No. 57-47008, a construction method in which an embedding material made of a plastic foam is fixed to a concrete slab substrate by fasteners such as nails and pins. The embedding material is placed on the concrete slab substrate during the curing process in which the curing substrate has not solidified yet, and the embedding material during the curing process is fixed to the concrete slab substrate using a specially shaped locking tool. There are construction methods.

[0006]

However, in all of the above-mentioned conventional construction methods for fixing an embedding material made of plastic foam to a concrete slab substrate, there are variations in the fixing force of the embedding material, There was a problem that the embedding material could not be fixed uniformly over the entire surface.

Therefore, an object of the present invention is to fix an embedding material made of a plastic foam placed on a concrete slab substrate to the concrete slab substrate with a substantially uniform fixing force over the whole, and to be special. An object of the present invention is to provide a method for mounting an embedding material on a concrete slab substrate that can be easily installed without requiring skill.

Another object of the present invention is to attach the embedding material to the concrete slab substrate, which enables the embedding material made of plastic foam to be firmly fixed to the concrete slab substrate with a substantially uniform fixing force. To provide a construction method.

[0009]

In order to achieve the above-mentioned object, the present invention is to provide an embedding material made of plastic foam having a plurality of through holes for mortar filling, after arranging the embedding material on a concrete slab substrate. The through hole is filled with mortar, and the embedding material is fixed to the concrete slab substrate.

In order to achieve the above object, according to the present invention, an embedding material made of a plastic foam having a plurality of through holes for mortar filling is placed on a concrete slab substrate and then the through holes are provided. A reinforcing bar for fixing the embedding material is implanted in the concrete slab substrate, and then the through hole is filled with mortar to fix the embedding material to the concrete slab substrate.

[0011]

According to the method for mounting the embedding material on the concrete slab substrate of the present invention, the embedding material made of plastic foam is provided on the concrete slab substrate at predetermined intervals with through holes for mortar filling preliminarily provided. Then, the through holes are filled with mortar, and the embedding material is fixed to the concrete slab substrate through the mortar column, and the embedding material made of plastic foam is provided at a predetermined position. Since the through hole is filled with mortar, the embedding material can be fixed with a substantially uniform fixing force over the entire embedding material, and furthermore, the construction can be easily performed without requiring skill.

Further, in the method for mounting the embedding material on the concrete slab substrate of the present invention, after the embedding material made of plastic foam having a plurality of through holes for mortar filling is placed on the concrete slab substrate. , Implanting a reinforcing bar for fixing the embedding material to the concrete slab substrate through the through hole, and then filling the through hole in which the reinforcing bar is embedded with mortar to fix the fixed portion between the concrete slab substrate and the embedding material. Since it has a mortar structure with reinforcing bars, the embedding material can be strongly fixed to the concrete slab substrate with a substantially uniform fixing force.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for mounting an embedding material on a concrete slab substrate according to the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show an embodiment of a method of mounting an embedding material on a concrete slab substrate according to the present invention. FIG. 1 shows an embedding material made of a plastic foam having through holes for mortar filling. 2 is a perspective view showing an example of FIG.
Fig. 3 is a vertical cross-sectional view of the embedding material shown in Fig. 1 placed on a concrete slab substrate, and Fig. 3 is a through hole provided in the embedding material filled with mortar to fix the embedding material to the concrete slab substrate. FIG. 4 is a vertical cross-sectional view showing the state
[Fig. 3] is a vertical sectional view of a concrete slab constructed by embedding a plastic foam embedding material.

In the embodiment shown in these figures, as shown in FIG. 2, an embedding material 2 made of plastic foam is arranged on the upper surface of the concrete slab substrate 1.

As the embedding material 2, a foamed material such as polystyrene, polyethylene, polypropylene, or polyvinyl chloride is used. As shown in FIGS. 1 and 2, the embedding material 2 is provided with a plurality of through holes 3 for mortar filling in advance at predetermined intervals. Each through hole 3 has an area ratio of, for example, a large diameter portion in the upper part to a small diameter portion in the lower part is 1: 0.8.
It is formed in an inverted truncated cone shape of about 0.5.

After placing an embedding material 2 made of a plastic foam and having a plurality of through holes 3 on the upper surface of the concrete slab substrate 1, as shown in FIG. 3, using a mortar filling gun or the like. By filling the mortar 4 in each through hole 3 and filling the mortar 4 in each through hole 3,
The embedding material 2 is fixed to the concrete slab substrate 1.

In the construction method according to this embodiment, the embedding material 2 is placed on the concrete slab substrate 1 during the curing process, and before the concrete slab substrate 1 is solidified, the through hole 3 is formed. If the mortar 4 is filled, the embedding material 2 can be fixed to the concrete slab substrate more firmly and with a more uniform fixing force.

Next, as shown in FIG. 4, a concrete 5 for finishing is poured to construct a concrete slab in which the embedding material 2 made of a plastic foam is embedded.

As described above, the embedding material 2 is used in this embodiment.
A plurality of inverted frustoconical through holes 3 provided at predetermined intervals are filled with mortar 4, and a plastic foam embedding material 2 is fixed to a concrete slab substrate 1 through the mortar column. Since the through holes 3 at predetermined positions are filled with the mortar 4, there is almost no variation in the fixing force at the fixing portion, and the fixing force is almost even over the entire embedding material 2. It can be fixed and can be easily constructed without requiring special skill.

In the above embodiment, the through hole 3 may be formed in an inverted truncated polygonal pyramid such as an inverted truncated triangular pyramid, an inverted truncated quadrangular pyramid, an inverted truncated hexagonal pyramid or the like.

Next, FIGS. 5, 6 and 7 are views showing examples of various shapes of through holes for filling mortar. In the embodiment shown in FIG. 5, the through hole 6 has a T-shaped cross section. Further, in the embodiment shown in FIG. 6, the through hole 7 has an inverted T-shaped cross section. Further, in the embodiment shown in FIG. 7, the through hole 8 is formed in a cylindrical shape or a polygonal tube shape.

In the through hole having the above-mentioned shape, as shown in FIG.
According to the through-hole 3 having the inverted truncated cone shape or the inverted truncated polygonal pyramid shape shown in FIG. 2 and the through-hole 6 having the T-shaped cross section shown in FIG. When the embedding material 2 is arranged on the slab substrate 1 and the mortar 4 is filled in the through holes 3, the embedding material 2 is difficult to be removed from the mortar 4. Therefore, the embedding material 2 does not rise up by the wind or the like after the embedding material 2 is placed, and in the assembling work of the reinforcing bars to the concrete slab substrate 1 or the pouring work of concrete onto the concrete slab substrate 1, Even if the worker walks on the embedding material 2, it is difficult for the embedding material 2 to separate from the concrete slab substrate 1.

Further, FIG. 8 is a partial longitudinal sectional view showing another embodiment of the present invention. In the embodiment shown in FIG.
During the curing process before the concrete slab substrate 1 is solidified, the embedding material 2 is arranged on the concrete slab substrate 1 and before the concrete slab substrate 1 is solidified,
Reinforcing bars 9 for fixing the embedding material are implanted into the concrete slab substrate 1 through the through holes 3.

In the example shown in FIG. 8, the through hole 3 is formed in the shape of an inverted truncated cone as in the embodiment shown in FIGS. 1 to 4, but the shape shown in FIGS. Of course, it may be formed by selecting from.

Then, similarly to the embodiment shown in FIGS. 1 to 4, the mortar 4 is filled in the through hole 3 in which the reinforcing bar 9 is implanted, and the concrete foam slab is embedded in the concrete slab substrate 1. Fix the material 2.

An embedding material 2 which utilizes the above-mentioned reinforcing bars 9.
In the installation construction method of, since the mortar 4 and the reinforcing bar 9 are firmly bonded, the fixing between the embedding material 2 and the concrete slab substrate 1 becomes uniform and strong.
You may perform the filling operation of the mortar 4 in the through-hole 3 with respect to the concrete slab board | substrate 1 after hardening and solidifying.

The concrete slab substrate 1 with the embedding material 2 attached in this way is
Place concrete for finishing (omitted in Fig. 8),
A concrete slab is built.

In the embodiment shown in FIG. 8, as described above, the embedding material 2 is applied to the concrete slab substrate 1 by the fixed portions 10 of the mortar structure with reinforcing bars provided at predetermined positions. Since it is fixed, the embedding material 2 can be strongly fixed to the concrete slab substrate 1 with a substantially uniform fixing force.

In the method of mounting the embedding material on the concrete slab substrate of the present invention described above,
The work of filling the mortar into the through holes of the plastic foam embedding material placed on the concrete slab substrate may be during the curing process of the concrete slab substrate or after curing and solidification. Also, the amount of mortar to fill the through holes of the embedding material is not necessarily limited to the ones that need to fill the through holes.

[0031]

According to the invention as set forth in claim 1, an embedding material made of a plastic foam, in which through holes for mortar filling are provided at predetermined intervals in advance on a concrete slab substrate, the embedding material is arranged. The through hole is filled with mortar, and the embedding material is fixed to the concrete slab substrate via the mortar column, so that the mortar is filled into the through hole at a predetermined position. ,
There is an effect that the embedding material can be fixed to the concrete slab substrate with a substantially uniform fixing force over the entire embedding material, and that the embedding material can be easily installed without requiring any skill.

According to the second aspect of the present invention, an embedding material made of plastic foam, in which through holes for mortar filling are provided at predetermined intervals in advance on the concrete slab substrate, is preferably arranged. During the curing process before the concrete slab substrate was solidified, the reinforcing bars for fixing the embedding material were implanted into the concrete slab substrate through the through holes provided in the embedding material made of plastic foam, and then the reinforcing bars were implanted. Since the through hole is filled with mortar, and the fixed portion of the concrete slab substrate and the embedding material has a mortar structure with reinforcing bars,
There is an effect that the embedding material can be firmly fixed to the concrete slab substrate with a substantially uniform fixing force.

[Brief description of drawings]

FIG. 1 is a perspective view of an embedding material made of a plastic foam having through holes for mortar filling, showing an embodiment of a method of mounting the embedding material on a concrete slab substrate of the present invention.

FIG. 2 is a vertical cross-sectional view of a state in which the embedding material shown in FIG. 1 is arranged on a concrete slab substrate.

FIG. 3 is a vertical cross-sectional view showing a state following FIG. 2 in which the through holes provided in the embedding material are filled with mortar and the embedding material is fixed to the concrete slab substrate.

FIG. 4 is a vertical cross-sectional view of a state in which a concrete slab in which a finishing concrete is poured and a plastic foam embedding material is embedded is constructed following FIG. 3;

FIG. 5 is a vertical cross-sectional view showing a through hole having a T-shaped cross section.

FIG. 6 is a vertical cross-sectional view showing a through hole having an inverted T-shaped cross section.

FIG. 7 is a vertical cross-sectional view showing a cylindrical or polygonal cylindrical through hole.

FIG. 8 shows another embodiment of the method for mounting the embedding material on the concrete slab substrate according to the present invention, in which the embedding material is fixed to the concrete slab substrate at the fixing portion of the mortar structure with reinforcing bars. FIG.

[Explanation of symbols]

 1 ... Substrate for concrete slab 2 ... Embedding material made of plastic foam 3 ... Inverted frustoconical through hole for mortar filling 4 ... Mortar filled in through hole 6 ... Through hole with T-shaped cross section 7 ... Reverse cross section T-shaped through-hole 8 ... Cylindrical or polygonal cylindrical through-hole 9 ... Reinforcing bar embedded in concrete slab substrate 10 ... Fixed part of mortar structure with reinforcing bar

Claims (2)

[Claims] 1. A plastic slab embedding material having a plurality of through holes for mortar filling is placed on a concrete slab substrate, and then the through holes are filled with mortar to form a concrete slab substrate. A mounting method for mounting an embedding material on a substrate for a concrete slab, which is characterized by fixing the embedding material. 2. A plastic foam embedding material having a plurality of through holes for mortar filling is arranged on a concrete slab substrate, and the embedding material is fixed to the concrete slab substrate through the through holes. A method for mounting and mounting an embedding material on a concrete slab substrate, which comprises implanting a reinforcing bar, then filling the through hole with mortar, and fixing the embedding material to the concrete slab substrate.