JPH086446B2 - Floor construction method for concrete buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a concrete slab, a base, a floor base material,
Related to the floor construction method of sequentially arranging floor finishing materials, especially,
The present invention relates to a floor construction method for a concrete building, which enables horizontal and leveling of a floor base material easily and quickly.

[Conventional technology]

As a floor structure of a concrete building, the one shown in FIG. 5 has been generally known. This floor structure is described in Japanese Utility Model Publication No. 63-167534, etc., and a mortar dumpling 2 as a required number of bases is adhered and arranged on a concrete slab 1, and the mortar dumpling 2 is provided.
A panel-like floor base material (joist mat) is laid on top,
Furthermore, the floor finishing material 4 is laid on it. In addition,
In the figure, reference numeral 5 is a jetty, and 6 is a recess for piping.

In constructing such a floor structure, first, a required number of mortar balls 2 are fixedly arranged on the concrete slab 1 by adhesion. Next, since the surface of the concrete slab 1 is rough-finished and the flatness and the like are not sufficient, the mortar dumpling 2 should be soft while the floor is under the floor so that the floor-finishing material 4 is not affected by it. The base material 3 is placed with an adhesive interposed, and the floor base material 3 is pressed down so as to follow a reference line provided in advance on the side reduction 9 or the like for horizontal alignment. In such a state that the mortar dumpling 2 is leveled, the mortar dumpling 2 is left to stand (normally 2 to 3 days are required). Then, after the mortar dumpling 2 is hardened, the pier 5 and the floor finishing material 4 are laid.

[Problems to be Solved by the Invention]

However, in the floor construction method as described above, since the leveling is performed by utilizing the deformation of the mortar dumpling 2, such leveling requires a great deal of time and labor,
Moreover, there is a drawback that the construction cannot proceed until the mortar dumpling 2 hardens.

In view of such a point, an object of the present invention is to provide a floor construction method for a concrete building that can be easily leveled and the construction period can be shortened.

[Means for solving the problem]

In order to achieve the above object, the floor construction method for a concrete building according to the present invention is to install a required number of bases made of resin foam on a concrete slab and follow a preset reference line. In parallel with this, the cutting tool is horizontally moved to cut off the surplus of the base, and then the floor base material and the floor finishing material are sequentially laid on the leveled base. It

In that case, as the resin foam used as the material of the base,
Hard expanded polystyrene resin, semi-rigid expanded polyethylene, expanded polypropylene, etc. are used. The expansion ratio is
20 to 60 times.

Further, examples of the cutting tool for the base include a hot nichrome wire and a rotary cutter.

Further, a vibration isolator made of rubber may be interposed between the concrete slab and the base, and then the base may be leveled.

[Action]

In the floor construction method for a concrete building according to the present invention having the above-described configuration, the base is made of resin foam, so that the cutting work is easy, and therefore the floor base material is easily leveled. It can be done quickly and quickly.

Moreover, since it is not necessary to wait for the curing period as in the case of using the mortar dumpling, the construction period can be shortened.

In addition to that, since the base is made of resin foam material, the vibration and soundproofing effects are also improved, the downward propagation of vibration and impact sound is suppressed, and the rubber is placed between the concrete slab and the base. The effect is further improved when the anti-vibration material made of is interposed.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, in an example of a floor construction method for a concrete building according to the present invention, first, a required number of bases 10 made of expanded polystyrene having a magnification of 40 are bonded onto a concrete slab 10. The material 17 is attached and arranged. Next, the cutting tool made of the hot nichrome wire 12 is moved along the reference line 15 set on the side wall 9 in advance. In this case, a pair of support trolleys 11 that stretch the thermal nichrome wire 12 in a straight line and rails 14 that guide the support trolleys 11 are arranged on the left and right with some bases 10 interposed therebetween, and the rails 14 are used as reference lines 15. Arrange them so that they are parallel to each other.

Under this condition, the hot nichrome wire 12 is electrically heated, and the left and right support carriages 11 travel on the rails 14 at substantially the same speed. As a result, the hot nichrome wire 12 moves horizontally to melt the base 10, and the upper part (excess portion) of the hot nichrome wire 12 is cut.
Is cut off and leveled.

After the leveling is completed in this way, leveling is performed as shown in FIG. 3 and the floor base material 3 and the floor finishing material 4 are sequentially laid on the base 10 using the adhesive 18 or the like. .

As shown in FIG. 4, in the above example,
The base 10 may be leveled after the vibration isolator 20 made of rubber is adhered and interposed between the concrete slab 1 and the base 10 with the adhesives 19 and 21.

〔The invention's effect〕

As is clear from the above description, according to the floor construction method for a concrete building according to the present invention, since the base is made of the resin foam, the cutting work is easy, and therefore, the floor base material Leveling can be performed easily and quickly.

Moreover, since it is not necessary to wait for the curing period as in the case of using the mortar dumpling, the construction period can be shortened.

In addition to that, since the base is made of resin foam material, the vibration and soundproofing effects are also improved, the downward propagation of vibration and impact sound is suppressed, and the rubber is placed between the concrete slab and the base. The effect is further improved when the anti-vibration material made of is interposed.

[Brief description of drawings]

1 and 2 are perspective views and cross-sectional views, respectively, used for explaining the main steps of an example of a floor construction method for a concrete building according to the present invention, and FIG. 3 is based on the floor construction method of the above-described embodiment. 4 is a sectional view showing a floor structure, FIG. 4 is a sectional view used for explaining a modified example, and FIG. 5 is a sectional view used for explaining a conventional floor construction method and a floor structure. 1 …… Concrete slab, 3 …… Floor base material, 4 …… Floor finishing material, 10 …… Base, 12 …… Hot nichrome wire, 15 …… Reference line

Claims (2)

[Claims] 1. A surplus of the base is provided by disposing a required number of bases made of a resin foam on a concrete slab and horizontally moving a cutting instrument along a preset reference line. A floor construction method for a concrete building, which is characterized by performing horizontal leveling by cutting off parts, and then sequentially laying a floor base material and a floor finishing material on the leveled base. 2. The floor of a concrete building according to claim 1, wherein the base is leveled after a vibration isolator made of rubber is interposed between the concrete slab and the base. Construction method.