JPS6043551A - Humidity-proof method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a moisture barrier layer on the ground surface of a house underfloor ring.

Conventionally, as shown in Figure 1, a moisture-proof sheet (2) is laid on the ground surface (+1) under the floor of a house as a countermeasure against condensation, so that moisture in the foundation ground (3) is absorbed into the underfloor space (4).
) to prevent condensation from evaporating.

However, in the case of an existing house, it is difficult to lay the moisture-proof sheet (2) especially around the bundle stones (5), so gaps tend to form around the bundle stones (5), resulting in poor moisture proofing. There was a problem in that it caused

In view of the above circumstances, the present invention has been made for the purpose of providing a novel moisture-proofing method, and is characterized in that a moisture-proofing layer is formed by spraying a moisture-proofing agent onto the ground surface.

Hereinafter, the configuration of the present invention will be explained based on an illustrated embodiment.

In Figure 2, (6) is a concrete cloth foundation buried in the foundation ground (3), and (7) is a bundle of stones (6) also installed on the foundation ground (3). This is the floor bundle installed above. (8) is a floor beam, such as a large drawer, constructed on the above-mentioned cloth foundation (6) and floor bundle (7) (7), and a floor plate (not shown) is placed on this floor beam (8). It is stretched.

Then, an injection pipe (9) is inserted into the underfloor space (4) from above the floor beam (8), etc., and a synthetic resin such as an acrylic emulsion as a moisture-proofing agent is stored in the tank (10). Suction the emulsion (A) with an injection pump (11),
It is ejected from the nozzle (12) at the tip of the injection pipe (9) and sprayed onto the ground surface +11. Then, the above synthetic resin emulsion (
As shown in Fig. 3, A) completely wraps around the pile stones (5) and solidifies to form a synthetic resin layer (13), forming a moisture-proof layer (1) on the ground surface (1) without any gaps. 14) is formed.

Of course, other suitable spraying methods may be used to form the moisture barrier layer (14) without detracting from the essence of the invention.

In this embodiment, a case where the synthetic resin emulsion (A) is sprayed is described, but a sheath material such as glass wool may be sprayed simultaneously with the synthetic resin emulsion (A). By doing so, a "moisture-proof" layer (1
Since the cracks mentioned in 4) are prevented, the moisture-proofing ability is further improved.

Furthermore, a moisture-proof layer (14) of resin mortar or resin concrete may be formed by hardening silica sand or other suitable aggregate with epoxy resin or the like.

Alternatively, a mixture of cement milk and a suitable waterproofing admixture may be used as a moisture proofing agent and sprayed together with the above-mentioned crack prevention material.

In addition, as shown in Fig. 4, cement milk is sprayed onto the foundation ground (3) to form a cement layer (15) for primary treatment, and on top of this cement layer (15), a synthetic resin emulsion ( Spray A) to form a synthetic resin layer (13)
The moisture-proof layer (14) may have a multilayer structure, such as by forming. Furthermore, when spraying these cement milks and synthetic resin emulsions, a sheathing material such as the above-mentioned glass wool may be mixed.

The present invention has the above structure and forms a moisture-proof layer by spraying a moisture-proofing agent onto the ground surface, so it can be used in places where it has been difficult to lay a moisture-proof sheet, such as around pile stones. Also, a moisture-proof layer can be easily formed without creating gaps, and there is a remarkable effect that moisture-proofing defects in under-floor spaces and the like are almost never caused. Furthermore, since the desiccant agent is simply sprayed on, it has the advantage of being extremely easy to work with.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a state in which a conventional waterproof sheet is laid on the surface of a subfloor. FIG. 2 is a cross-sectional view showing a state in which a moisture-proofing agent is sprayed onto the surface of a subfloor in this embodiment, and FIG. 3 is an enlarged cross-sectional view showing a state in which a moisture-proof layer is formed around the pile stones. FIG. 4 is a cross-sectional view of another example in which the moisture-proof layer has a two-layer structure. (A)...Synthetic resin emulsion, (13)...Synthetic resin layer, (14)...Moisture-proof layer, (6)...Cement layer. Patent Applicant: Block House Co., Ltd. Representative Patent Attorney Hisashi Tarumoto

Claims (1)

[Claims] A moisture-proofing method characterized by spraying a moisture-proofing agent onto the ground surface to form a moisture-proof layer.