JPH08291616A - Method for concrete flooring construction - Google Patents

Abstract

PURPOSE: To reduce the term of works and cost largely while largely improving accuracy, and to eliminate the need for a skilled worker. CONSTITUTION: Concrete 6 under the state of a fluid is poured onto a floor face, and concrete is levelled roughly. The verticality of a rod on hand is confirmed, and the upper end of the adjusting plate of the rod on hand is used as a finishing top end 8. Concrete surfaces 7 among projections and projections are rubbed in a beltlike manner by an aluminum ruler, and surfaces are rubbed in a strap manner while using two rows of ruler rubbing sections tying the projections and the projections as a reference. A level is checked on a central section in the direction orthogonal to the ruler rubbing direction, the rubbing of levelled sections in a strap manner is repeated, and the concrete surfaces 7 are pushed once by a crowbar. When concrete 6 in an extent that a footprint is formed on concrete 6 is brought to a green state, fluidized mortar 9 is poured on the concrete surfaces 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete floor finishing method, and more particularly to a concrete floor finishing method for finishing concrete floors of buildings, condominiums, schools, hospitals and the like to a smooth surface.

[0002]

2. Description of the Related Art As a conventional concrete floor finishing method, for example, the method shown in the flowchart of FIG. 3 is generally known. In this conventional construction method, first, the concrete of the fluid pumped by the pump is poured onto the floor constructed by the reinforcing bars, and the earthwork is roughly leveled according to the level of the level point ahead of this concrete surface (( Step 11).

Then, after the roughening is performed, vertical confirmation of the stupid bar is visually performed, and leveling is performed to obtain points (hits) by the stupid bar (step 12). Next, after rubbing the area between the hits with a strip of aluminum, the lumber is rubbed on the surface based on the two rows of the joisting portion that connects the hits and the strips in a strip. (Step 13). Next, the fixed lumbering is stopped at the position between the hits and hits, and the level is checked on the central part. After the leveling level is checked, it is pressed once with the metal iron (step 14).

After that, when the concrete is hardened to the extent that almost no human footprint is left, the surface of the concrete is repaired using a mechanical trowel such as a Trowell disk (step 15), and finally the mechanical trowel cannot be filled. Finishing the concrete floor with a finishing iron to eliminate small holes, small irregularities in the machine iron, and small irregularities in the iron iron (step 16).

However, this conventional concrete floor finishing method relies on the skill and intuition of earthwork because it is carried out manually, and the degree of progress of the hardening state of concrete depends on the weather and temperature. Therefore, there is a large variation in the accuracy of the concrete floor that is actually finished.

Therefore, in recent years, a concrete finishing method according to the flowchart of FIG. 4 has come to be used as a method of obtaining more accuracy. In this conventional construction method, the concrete floor surface in a state just before the completion of attaching P tiles or rugs, which has been processed for 2 to 3 months after the steps 11 to 14 shown in FIG. After cleaning (step 21), the primer solution is applied to the floor surface with a brush or the like and then dried (step 22). After that, so-called earthworking for determining the level that determines the floor surface is performed (step 23). The above is the construction on the first day.

Then, on the second day, the hose piping is set up by the pump car (step 24), and the fluidized mortar is flowed to the above level by the pump (step 2).
5). This makes it possible to construct a concrete floor having a smooth floor surface according to the water surface of the fluidized mortar.

[0008]

However, in the conventional concrete floor finishing method shown in FIG. 3, there is a case where there is a large unevenness in accuracy and there is unevenness of concrete having a larger error than the target accuracy. In the winter, if concrete hardens at night, it may freeze and cause poor construction. In these cases, first, after cleaning the concrete floor surface after finishing the construction, as shown in the schematic cross-sectional view of FIG. 5, a portion 32 higher than the target floor surface 31 is polished and scraped off with a polisher. It is necessary to perform a very troublesome repair of filling a portion 33 lower than the target floor surface 31 with mortar, and finally applying a thin coating to the entire floor surface. As described above, the conventional concrete floor finishing method shown in FIG. 3 has a problem that enormous repair cost and time are required for repair, and more skilled earthwork is required. Furthermore, since the noise of sliding on the floor surface with the finishing iron is loud, noise becomes a problem when the finishing iron pressing is forced to be performed at night.

On the other hand, although the conventional concrete floor finishing method shown in FIG. 4 can obtain a highly accurate floor surface as compared with the conventional concrete floor finishing method shown in FIG. 3,
Since it takes at least 2 days to complete the construction because it is necessary to flow the fluidized mortar after the concrete floor is completely hardened, the cost becomes high and it takes time to complete the construction.

The present invention has been made in view of the above points,
Greatly reduce the construction period and cost and improve accuracy,
Another object is to provide a concrete floor finishing method that does not require skilled workers.

[0011]

In order to achieve the above object, the present invention provides a first step of flowing concrete on the floor surface and then roughening the concrete, and the roughening of the concrete. The second step, in which the surface of the concrete is checked while leveling it, and then pressing it with a trowel, and the third step, in which the fluidized mortar is poured over the concrete when the concrete that has undergone the second step is raw dry, is finished. And a process.

In the second step of the present invention, it is possible to lower the roughened concrete surface to a position lower than the finishing top and press it with a trowel to obtain a concrete floor having a smooth surface with higher accuracy. It is desirable because it can be installed.

[0013]

In the present invention, the fluidized mortar is made to flow over the concrete surface when the concrete immediately after pressing once with the trowel is in a state of being dry, so that the concrete is hardened to the extent that no footprint is left. The concrete floor can be completed on the same day without waiting, and the smooth surface of fluidized mortar can be used.

[0014]

EXAMPLE Next, an example of the present invention will be described with reference to FIGS.
Will be explained together. First, as the first step, the concrete in the state of fluid pumped by a pump is poured onto the floor, and the earthwork is roughened by adjusting the concrete surface to the level of the level point preliminarily attached to the floor surface (step 1). ). After rough averaging, earthworkers defeat the level points.

Subsequently, vertical confirmation of the stupid bar after the roughening is performed visually or by using a laser beam, and the upper end of the adjust plate of the stupid bar is used as the finishing top end. The point (hit) with this stupid stick is the first leveling (step 2). Next, the concrete surface between the hits is rubbed with a strip of aluminum with a strip of wood, and then the row of siding that connects the hits and the strips is used as a reference. Scraping is performed (step 3).

Next, the fixed lumbering is stopped at the position between the hit and the hit, the level is checked on the central portion in the direction orthogonal to the fixed lumbering direction, and further returning to the point where the fixed lumbering is started. Repeatedly scraping wood, re-leveling, and then smoothing the smoothed part. After that, the surface of the concrete is pressed once with a gold iron (step 4). The above-described leveling work from steps 2 to 4 is the second step. The above-mentioned first step and second step are the same as steps 11 to 14 of the conventional method shown in FIG.

In the work of pressing the concrete surface with the iron trowel, the concrete surface is lowered and pressed so that the concrete surface is located at a position lower than the finish top. This is because the fluidized mortar then flows over the concrete surface. The height (the amount of lowering) between the finished top and the concrete surface varies depending on the conditions, but is 8 mm to 30 mm.
It is about mm.

In the final third step, when the concrete is so dry that the footprints are left on the concrete,
That is, immediately after step 14 above, the fluidized mortar is flowed on the concrete surface by the height of the above-mentioned lowered amount (step 5). In addition, as this fluidized mortar,
For example, "Floor Leveler" (trade name) manufactured by Ube Industries, Ltd.
Can be used. Then, the concrete and the fluidized mortar are naturally hardened to complete the construction of the concrete floor made of the concrete and the fluidized mortar.

FIG. 2 shows a cross section of the concrete floor thus constructed. In the figure, the surface 7 of the concrete 6 is lowered to a position lower than the finishing crown 8, and a fluidizing mortar 9 is provided between the surface 7 of the concrete 6 and the finishing crown 8.

According to this embodiment, the accuracy after hardening the concrete and the fluidized mortar was as high as ± 2 to 3 mm with respect to the target finish crown due to the smooth flat surface of the fluidized mortar. Therefore, no repair is required after the concrete floor construction, and as a result, a significant cost reduction can be realized, and the construction period for repair is greatly shortened. Moreover, in this embodiment, since the accuracy can be obtained by utilizing the smooth flat surface of the fluidized mortar, it is possible to finish and construct a high-quality concrete floor without requiring a skilled worker.

[0021]

As described above, according to the present invention,
By flowing fluidized mortar over the concrete surface when the concrete is in a dry state, the concrete floor can be completed on the same day without waiting for the concrete to harden to the extent that it does not leave a footprint, Since the smooth surface of a fluidized mortar is available,
It is possible to significantly improve the construction accuracy of the concrete floor surface after the construction, which eliminates the need for repairs after the completion of the concrete floor construction and realizes a significant cost reduction compared to the conventional method. Further, according to the present invention, since the construction can be done in one day, the construction period can be greatly shortened as compared with the conventional one, and the problem of freezing and the noise pollution at night can be prevented.

Further, according to the present invention, the surface of the concrete is pressed once at a position lower than the top end of the finish with the gold trowel, and then the fluidized mortar is caused to flow so that the finished amount is obtained by the fluidized mortar. Therefore, anyone can construct a high-quality concrete floor with less variation in accuracy than before.

[Brief description of drawings]

FIG. 1 is a flow chart for explaining a process of one embodiment of the method of the present invention.

FIG. 2 is a cross-sectional view of a concrete floor surface constructed by an embodiment of the method of the present invention.

FIG. 3 is a flowchart for explaining a process of an example of a conventional method.

FIG. 4 is a flowchart for explaining a process of another example of the conventional method.

FIG. 5 is a diagram illustrating an example of repair.

[Explanation of symbols]

 1 Step of the 1st process 2-4 Step of the 2nd process 5 Step of the 3rd process 6 Concrete 8 Finish top 9 Fluidized mortar

[Procedure amendment]

[Submission date] May 29, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

2. Description of the Related Art As a conventional concrete floor finishing method, for example, the method shown in the flowchart of FIG. 3 is generally known. In this conventional construction method, first, a pumped fluid concrete is poured onto a floor built up of reinforcing bars, and the plasterer roughly balances the surface of this concrete according to the level of the level point ahead of the floor ( Step 11).

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

[0005] However, this conventional concrete floor finishing method will depend on the degree of progress of the curing state of the concrete rely on plastering of skill and intuition because it is carried out in the plastering of hand, also by the weather and temperature Therefore, there is a large variation in the accuracy of the concrete floor that is actually finished.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the conventional concrete floor finishing method shown in Fig. 6, there is a large variation in accuracy, and there may be concrete unevenness with a larger error than the target accuracy.In addition, in the winter season, if concrete hardening takes place at night, it freezes. There may be a poor construction. In these cases, first, after cleaning the concrete floor surface after finishing the construction, as shown in the schematic cross-sectional view of FIG. 5, a portion 32 higher than the target floor surface 31 is polished and scraped off with a polisher. Target floor 31
It is necessary to carry out repairing by filling the lower part 33 with mortar and finally applying a thin coating to the entire floor surface, which is extremely troublesome repairing. As described above, the conventional concrete floor finishing method shown in FIG. 3 has a problem that enormous repair cost and a long period of time are required for the repair, and a skilled plasterer is required. Furthermore, since the noise of sliding on the floor surface with the finishing iron is loud, noise becomes a problem when the finishing iron pressing is forced to be performed at night.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

[0014]

EXAMPLES Next, examples of the present invention will be described with reference to FIGS. First, as the first step, the concrete in the state of a fluid pumped by a pump is poured onto the floor, and the plasterer roughens the concrete surface according to the level of the level point preceded by the floor surface (step 1 ). After roughing, the plasterer defeats level points.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

[0021]

As described above, according to the present invention, when the concrete is in a state of being completely dry, by flowing the fluidized mortar onto the concrete surface, the concrete is hardened to the extent that no footprint is left. The concrete floor can be completed on the same day without waiting for, and the smooth surface of the fluidized mortar, which is a fluid, can be used, so the construction accuracy of the concrete floor surface after construction can be greatly improved. Since the repair due to unevenness of the concrete floor is not required after the completion of the construction, the cost can be reduced significantly compared to the conventional method. Further, according to the present invention, since the construction can be done in one day, the construction period can be greatly shortened as compared with the conventional one, and the problem of freezing and the noise pollution at night can be prevented.

Claims (2)

[Claims] 1. A first step in which a concrete in a fluid state is poured onto a floor surface and then roughening the concrete, and a constant wood scraping is performed while checking the level of the surface of the roughened concrete. A second step of pressing with a rear iron, and a third step of finishing by flowing a fluidized mortar onto the concrete after the second step is dry-drying
The concrete floor finishing method characterized by including the process of. 2. The concrete floor finishing method according to claim 1, wherein in the second step, the roughened concrete surface is lowered to a position lower than a finishing top end and pressed by a trowel.