JPH0365448B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a termite prevention construction method for the subfloor surface of a building.

(Prior Art) Conventionally, in order to prevent wooden buildings from being damaged by termites that have crawled up from under the floor, or to prevent wooden parts from rotting due to moisture rising from the ground surface under the floor, the above-mentioned methods have been used. Anti-termite sheets are being laid on the subfloor surface. By the way, when the above-mentioned termite prevention sheet is laid, if a gap is formed between the above-mentioned sheet and a wall surface such as a concrete cloth foundation, there is a possibility that an ant trail that becomes a passage for termites will be formed in this area.

For this reason, as shown in Japanese Patent Application Laid-Open No. 60-1005718, a termite prevention agent made of resin, asphalt, or a mixture thereof mixed with a termite prevention agent is used at the boundary between a wall surface such as a concrete cloth foundation and an antitermite sheet. The boundaries are sealed by spraying an ant chemical. However, when a highly fluid chemical is used as the termite control chemical, it is difficult to concentrate the chemical in the necessary areas because it tends to leak into the surrounding area. When used, it is difficult to spread this chemical solution to every corner of the required area, and in either case, there is a drawback that a sufficient seal cannot be achieved.

(Objective of the invention) This invention has been made in order to eliminate the above-mentioned drawbacks of the present invention, and regardless of the fluidity of the anti-termite chemical solution used, it is possible to apply the minimum necessary chemical solution to walls such as concrete cloth foundations. To provide an anti-termite construction method that can easily and reliably seal the boundary between the anti-termite sheet and the anti-termite sheet.

(Structure of the invention) The present invention lays an anti-termite sheet on the subfloor ground surface,
A groove is formed by filling the boundary between the anti-termite sheet and a wall surface such as a concrete cloth foundation with earth and sand, and an anti-termite chemical solution is poured into this groove.

(Example) Fig. 1 shows the lower part of the floor of a building, where 1 is a concrete cloth foundation and 2 is an anti-termite sheet. The termite-proofing sheet 2 is made of a synthetic resin material such as vinyl chloride resin, EVA resin, or polyethylene resin, which contains an effective ant-prevention chemical solution selected from organic chlorine-based, organic phosphorus-based, carbamate-based, and other insecticides. Either the selected and mixed materials are formed into a film by extrusion molding, inflation molding, calender molding, or other means, or the thermoplastic elastomer made of synthetic rubber polymer etc. and the above-mentioned barrier are mixed into molten asphalt. It is formed into a sheet by applying a material mixed with a chemical solution for ants to a nonwoven fabric or the like using a roll coating method or the like.

Nails 3 are driven into predetermined locations such as the peripheral edge of the termite-proofing sheet 2, thereby temporarily fixing the termite-proofing sheet 2 to the subfloor ground surface. In order to seal the boundary between this anti-termite sheet 2 and the wall surface of the concrete cloth foundation 1, first spread sand or soil along the base end of the wall surface of the concrete cloth foundation 1, as shown in FIG. The embankment portion 4 is formed. Next, as shown in FIG. 3, the bar 5 is moved along the base end of the concrete cloth foundation 1 to
A groove 6 of a predetermined width is formed in the boundary portion by means such as pressing.

Next, as shown in FIG. 4, an anti-termite chemical solution 7 is injected along the wall surface of the concrete cloth foundation 1 and poured into the groove 6. Furthermore, as shown in FIG. Pour the anti-termite chemical solution 7 directly,
The groove 6 may be filled with an anti-termite chemical solution 7. In this way, the termite-proof structure shown in FIG. 6 is obtained.

In this way, since the anti-termite chemical 7 is poured into the groove 6 formed using the embankment 4, even if a highly fluid chemical is used as the chemical 7, the chemical will not spread to the surrounding area. No leakage. Furthermore, even when a chemical solution with low fluidity is used, the location where the chemical solution should be filled is already clarified by the groove 6, so that insufficient filling of the chemical solution can be prevented from occurring. Therefore, irrespective of the fluidity of the chemical solution, the anti-termite chemical solution 7 can be distributed to the necessary areas in just the right amount, and the boundary between the anti-termite sheet 2 and the wall surface of the concrete cloth foundation 1 is the anti-termite chemical solution 7. It is securely sealed by the ant chemical solution 7,
It is possible to prevent ant trails from forming at this boundary.

In addition, when a chemical liquid with adhesive properties such as a chemical liquid made by mixing a termite agent into a solvent such as medicinal synthetic resin, synthetic rubber, or asphalt is used as the termite control chemical liquid 7, this chemical liquid Therefore, there is an advantage that the peripheral edge of the anti-termite sheet 2 can be fixed to the wall surface of the concrete cloth foundation 1. That is, since the groove 6 is formed of earth and sand, the anti-termite chemical solution 7 penetrates through the earth and sand and reaches the wall surface of the concrete cloth foundation 1 and the upper surface of the anti-termite sheet 2, and this anti-termite chemical solution 7 When solidified, this chemical solution 7
The concrete cloth foundation 1 and the anti-termite sheet 2 are integrated through the. Therefore, the termite-prevention chemical solution 7 can more reliably seal the boundary area, preventing moisture from rising from this boundary area and penetrating into the building, or causing the termite-proofing sheet 2 to shift. It is possible to effectively prevent the peripheral edge from coming loose from the wall surface of the concrete cloth foundation 1.

Note that the location where the anti-termite chemical solution 7 is applied is not limited to the boundary between the anti-termite sheet 2 and the concrete cloth foundation 1. For example, a groove may be formed at the boundary between the termite-proofing sheet 2 and the peripheral wall surface of the bundle stone, and the termite-proofing chemical solution 7 may be filled in this groove.

Further, in the above embodiment, after forming the embankment portion 4,
This embankment portion 4 is held down by bars 5, etc. to form a groove 6, and the groove 6 is placed at a predetermined distance from the wall surface of the concrete cloth foundation 1 so that the groove 6 can be formed at the same time as filling earth and sand. The embankment portion 4 may be formed in the area.

(Effects of the Invention) As explained above, in the present invention, a termite-prevention chemical solution is poured into a groove formed by filling earth and sand at the boundary between an anti-termite sheet and a wall surface such as a concrete cloth foundation. Therefore, irrespective of the fluidity of the anti-termite chemical solution, the chemical solution can be easily and evenly distributed over the boundary area, and the termite-preventing chemical solution can be easily and accurately distributed to the boundary between the wall surface and the anti-termite sheet. This can reliably prevent the formation of roads.

[Brief explanation of drawings]

1 to 5 are cross-sectional perspective views showing examples of the termite-proofing construction method according to the present invention, and FIG. 6 is a sectional view showing a termite-proofing structure obtained by the above-mentioned construction method. 1... Concrete cloth foundation, 2... Anti-termite sheet, 4... Embankment, 6... Groove, 7... Anti-termite chemical solution.

Claims (1)

[Claims] 1. An anti-termite sheet is laid on the sub-floor ground surface, and a groove is formed by filling earth and sand around the boundary between the anti-termite sheet and the wall surface of the concrete cloth foundation, etc., and a chemical solution for anti-termite is applied in this groove. An anti-termite construction method characterized by pouring.