JP2001049753A - Termite preventing structure and termite preventing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a termite preventing function by providing a termite preventing agent execution part at an adjacent portion of an earth floor concrete layer and a continuous footing and providing a termite preventing interrupting part on the under floor space side of adjacent portions of the earth floor concrete layer and the continuous footing. SOLUTION: In under floor space S on the inside of a continuous footing 12, a groove 11 of a triangular cross section is dug on the ground 10 at a root part of the continuous footing 12 and a termite preventing agent 32 is injected into the groove 11. On the whole surface of the ground 10, a termite preventing sheet 30 made by covering the termite preventing agent of the groove 11 and coating or impregnating the termite preventing agent on/into a synthetic resin sheet is laid and an earth floor concrete layer 20 is placed on the termite preventing sheet 30. An interrupting sheet 42 made of polyethylene is arranged so as to constitute an L-shape from an upper surface of the earth floor concrete layer 20 to a side surface of the continuous footing 12 at a corner part where the upper surface of the earth floor concrete layer 20 and the side surface of the continuous footing 12 are intersected. The sheet 42 is strongly joined to the earth concrete layer 20 and the continuous footing 12 by heat adhesion. As a result, a termite preventing function can be surely displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a termite structure and a method for controlling termites, and more particularly to a termite structure and a method for preventing termites from entering the underfloor space of a building and damaging the building. I have to.

[0002]

2. Description of the Related Art Conventionally, as an underfloor structure of a building, an intersoil concrete structure in which concrete is poured on the ground in an underfloor space is known. This soil concrete structure can prevent moisture and moisture from entering the underfloor space from the ground,
It is effective to maintain the environment of the underfloor space well.

[0003] As for the termite-prevention structure in the soil concrete, an anti-termite sheet is applied to the surface of the ground before casting the soil concrete. The soil concrete itself has a function of blocking the passage of termites, but if cracks occur over time, there is a possibility that termites will enter through the gaps, so the above-mentioned termite prevention sheet is effective.

Conventionally, as a termite invasion route, a termite often penetrates from the ground to the structure above the floor along the side surface of the cloth foundation, so that a groove is dug at the root of the cloth foundation.
Injection of termiticides into these grooves is performed. Examples of the termiticides include organochlorine agents such as chlordane, and organic phosphorus agents such as fenitrothion.

[0005]

The slab concrete described above undergoes dimensional changes as the hardening progresses over time after construction, and a gap may be formed between the slab concrete and the cloth foundation. . There is a problem that the termiticide applied for termite control treatment leaches or volatilizes into the underfloor space through the gap between the soil concrete and the cloth foundation. Since the termite sheet and the filled termitic agent are liquid or contain volatile components, they can pass through even small gaps. It is necessary to minimize the possibility that the termiticide component penetrates into the floor structure or the living room side. Further, when inspecting or repairing the underfloor space of a building, an operator may enter the underfloor space, and there is a possibility that components of the termiticide may adhere or be sucked.

[0006] It is an object of the present invention to provide an underfloor space having the above-mentioned interstitial concrete structure, to perform a reliable termite control function and to improve the environment of the underfloor space.

[0007]

The termite-control structure according to the present invention is a termite-control structure in an underfloor space in which an inter-soil concrete layer is cast on a ground surface surrounded by a cloth foundation. The termiticide application section located at the location adjacent to the cloth foundation, and the termite control agent placed at the underfloor space side of the location adjacent to the interstitial concrete layer and the cloth foundation, where And an ant-inhibiting agent blocking section that blocks entry into the space side. [Underfloor space] If an underfloor structure having a soil concrete layer is provided, it can be applied to the structure of various underfloor spaces in an ordinary building.

[0008] The cloth foundation is partially buried in the ground,
It is a concrete structure constructed to form a wall or a frame. Flooring, pillars and other superstructures are built on top of the fabric foundation. The soil concrete layer is a concrete layer cast on the bottom of the underfloor space surrounded by the cloth foundation so as to cover the ground. The outer peripheral edge of the soil concrete layer is located adjacent to the side of the fabric foundation. The thickness of the soil concrete layer varies depending on the construction conditions of the building, but is usually set to about 5 to 20 cm. Reinforcing bars can be arranged in the soil concrete layer.

[0009] Prior to placing the soil concrete layer, a termite sheet can be laid on the ground surface. The termite control sheet is a sheet in which a pyrethroid-based or organophosphorus-based termite-controlling agent is disposed on the back surface of a sheet made of a synthetic resin or the like. Instead of a termite sheet, a termiticide can be sprayed directly on the ground surface. If a synthetic resin sheet such as nylon having a termite-controlling function is used as the termite-controlling sheet, the termite-controlling agent may not be blended. [Antifactant application section] Installed in a place and structure that can prevent termites from entering the underfloor space side or the on-floor structure side along the gap created between the soil concrete layer and the cloth foundation or along the side of the cloth foundation .

[0010] The adjacent portion of the interstitial concrete layer and the fabric foundation is defined as an opposing surface between the end face of the interstitial concrete layer and the side surface of the fabric foundation, or a corner formed by the upper end of the interstitial concrete layer and the side surface of the fabric foundation. And the inside of the corner ground formed by the bottom end of the soil concrete layer and the side of the fabric foundation. Therefore, the termiticide application section may be applied either before or after the soil concrete layer is applied.

The termiticide may be in the form of liquid, kneaded, or powder. Examples of termiticides include organophosphorus compounds such as chlorpyrifos (manufactured by Dowkerkal), Sumithion (manufactured by Sumitomo Chemical), phoxim (manufactured by Nippon Agrochemicals), carbamates such as proboxur (manufactured by Sumitomo Chemical), eresulin, permethrin (Sumitomo) Pyrethroids and other chemicals such as pifenthrin (manufactured by Nippon Agrochemical Co., Ltd.), silafluofen (manufactured by Dainippon Insects and Pests Ltd.), etofenprox (manufactured by Mitsui Chemicals, Inc.) can be used.

The termiticide can be applied as it is, or can be applied in the form of a synthetic resin sheet or a synthetic resin molded article containing the termiticide. The termiticide can be microencapsulated for use. [Termite repellent blocking part] In order to block the intrusion of the termitic repellent applied to the termite repellent construction part into the underfloor space, the termite repellent blocking part is
It is located on the underfloor space side of the adjacent location between the soil concrete layer and the cloth foundation. Therefore, the construction of the termiticide blocking section is performed after the construction of the termite-controlling section.

The specific arrangement structure of the termite-control agent blocking section is set in accordance with the arrangement structure of the termitic-agent application section. In order to block the termite-controlling agent, it is made of synthetic resin, metal, ceramic or other material, and is made of a material that has liquid-permeability, air-permeability, and water-blocking properties. You should keep it. If the material is elastic and deformable, it can easily cope with the deformation of the concrete layer between the soil and the foundation of the cloth. Water blocking materials and caulking materials for construction can be used. The termiticide barrier material may be in the form of a sheet or a coating.

When a polyamide resin such as nylon 6, nylon 66 or nylon 11 is used as a termite-controlling material, the polyamide resin itself has a termite-proofing function against termites, so that the termite-controlling properties can be further improved. . The termiticide blocking section may be provided with a member made by means such as molding in advance, or by coating a termiticide blocking material with a means such as coating, filling, injection, etc. A termiticide blocking section may be configured.

In the case where the termiticide blocking member is formed in advance, when the termiticide blocking member is installed, an adhesive, an adhesive, or a sticking agent is used so that no gap is formed between the concrete floor and the cloth foundation. It is effective to close the gaps with an agent, a caulking agent, a sealant, or the like, and to enhance the adhesion between the termite-control agent blocking member and the interstitial concrete layer and the cloth foundation. When a material having thermal adhesiveness is used as the termite-controlling agent blocking member, the termite-controlling agent blocking member is disposed at a predetermined location and then heated to join the soil concrete layer and the fabric foundation.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Blocking sheet] In the embodiment shown in FIG. 1, a blocking sheet is used as a termite blocking section. The underfloor structure includes a frame-shaped cloth foundation 12 which is constructed by being partially embedded in the ground 10 and serves as a base for supporting a building, and a floor surface 16 which is constructed on the cloth foundation 12 via a close-up or a joist. Alternatively, it has an upper structure such as a wall 18.

In the underfloor space S inside the cloth foundation 12,
A groove 11 having a triangular cross section is formed in the ground 10 at the base of the cloth foundation 12.
Are dug, and an anti-termitic agent 32 is injected into the groove 11.
A termite sheet 30 is laid on the entire surface of the ground 10 in the underfloor space S so as to cover the termite agent 32 in the groove 11, and an interstitial concrete layer 20 is cast on the termite sheet 30. The termite sheet 30 is made of a synthetic resin sheet coated or impregnated with a termitic agent. If a polyamide resin sheet is used as the termite sheet 30,
The termite control function can be provided without using a termiticide.

The upper surface of the interstitial concrete layer 20 and the cloth foundation 1
At the corner where the side surface of No. 2 intersects,
The shielding sheet 42 is stuck so as to form an L shape from the upper surface of the cloth base 12 to the side surface of the cloth foundation 12. The blocking sheet 42 is made of polyethylene and has a thickness of 0.01 to 0.2.
The thing of about mm is used. After the blocking sheet 42 is placed in a predetermined place, the sheet is firmly bonded to the interstitial concrete layer 20 and the cloth foundation 12 by hot bonding by blowing with hot air or pressing with a hot iron.

In the above embodiment, the soil concrete layer 2
No. 0 causes a change with time after the construction, and a gap is formed between the interstitial concrete layer 20 and the cloth foundation 12, through which the termiticide 32 or the termite-controlling agent component of the termite-controlling sheet 30 is placed on the underfloor space S side. If you try to break into the
Intrusion can be reliably blocked. As a result, the environment of the underfloor space S can be maintained in a favorable state.

Since the insulating sheet 42 has elastic deformability, it can be deformed in accordance with the deformation of the interstitial concrete layer 20, and the joining by the thermal bonding is strong. Even if the dimensional change proceeds, the blocking sheet 42 does not peel off from the concrete soil layer 20. Furthermore, when a nylon sheet is used as the shielding sheet 42, the termite-proofing function can be given to the shielding sheet 42 itself. Therefore, even if termites are transmitted through the gap between the soil concrete layer 20 and the cloth foundation 12, the terminating sheet 42 is used. And termites can be prevented from entering the underfloor space S. [Coating Blocking Layer] The embodiment shown in FIG. 2 uses a spray-coated blocking layer as a termite blocking section.

Soil concrete layer 20, injected termiticide 32
The configuration such as is the same as that of the above embodiment. By spraying and applying a liquid spray-blocking agent from the spray nozzle 43 to the corner formed by the upper surface of the soil concrete layer 20 and the side surface of the cloth foundation 12, and hardening the spray-blocking agent, A spray blocking layer 44 having an L-shaped cross section is formed from the upper surface to the side surface of the cloth foundation 12. The material of the spray blocking layer 44 is made of a nylon resin.

In the above-described embodiment, the use of the spray blocking layer 44 formed by spray coating improves the adhesion or bonding of the spray blocking layer 44 to the interstitial concrete layer 20 and the cloth foundation 12. . The spray blocking layer 44 also penetrates into minute gaps between the soil concrete layer 20 and the cloth foundation 12, so that a reliable blocking function can be achieved.

In the embodiment shown in FIG. 3, instead of the spray coating of the above-mentioned embodiment, a relatively viscous liquid material or a kneaded material is used to cut off a blocking material using a brush or a spatula.
A corner portion between the upper surface of the soil concrete layer 20 and the side surface of the cloth foundation 12 is applied so as to have a triangular cross section, thereby forming an applied blocking layer 45. The tube may be filled with a relatively viscous barrier material and extruded from the end of the tube and delivered to a predetermined location.

In this embodiment, since a spraying device is not required, the construction can be performed relatively easily. Further, since the coating blocking layer 45 can be formed to have a relatively large thickness,
The blocking function can be enhanced. [Antitermite Structure Above Soil Concrete Layer] In the embodiment shown in FIG. 4, an antitermite agent is applied on the interstitial concrete layer.

The upper surface of the soil concrete layer 20 and the cloth foundation 1
The corners with the side surfaces of the second termite are filled with a termiticide in a triangular cross section to form a filled termite-controlling part 34. The termite-controlling agent constituting the filling termite-controlling section 34 contains a water-stopping material in addition to the termiticide component. A blocking sheet 46 made of polypropylene or polyethylene is disposed on the surface of the filling termite-proofing section 34. Both ends of the shielding sheet 46 reach the side surface of the cloth foundation 12 and the upper surface of the concrete slab 20.

In the above embodiment, the soil concrete layer 2
After the zero is installed, the termite-controlling section and the termite-controlling agent blocking section can be constructed. When a gap is formed between the soil concrete layer 20 and the cloth foundation 12 and the moisture or moisture rises from the ground 10 side, the filled termite prevention part 34 containing the water-stopping material causes the moisture and moisture below the floor. Intrusion into the space S can be blocked. Soil concrete layer 20 and cloth foundation 1
The termite component contained in the filled termite prevention part 34 oozes into the gap with the termite 2, thereby preventing termites from climbing the gap. [Anti-termite structure at the gap between the soil concrete layer and the fabric foundation] Fig. 5
In the embodiment shown in (1), a termite-proof construction part is arranged in a gap between the soil concrete layer and the cloth foundation.

Specifically, the construction of the cloth foundation 12 is completed,
Prior to the construction of the soil concrete layer 20, the termite-controlling agent layer 36 is arranged on the side surface of the cloth foundation 12. The termite-controlling agent layer 36 can be constructed by applying a material containing a termiticide or attaching a sheet containing the termite-controlling agent. At the corner formed by the upper surface of the soil concrete layer 20 and the side surface of the cloth foundation 12, a coating barrier layer 45 similar to the above is formed.

In the above-described embodiment, the gap between the interstitial concrete layer 20 and the cloth foundation 12 can be prevented to some extent by the deformability of the termite-controlling agent layer 36. Even if there is a gap between the soil concrete layer 20 and the cloth foundation 12 and termites rise up along the side surface of the cloth foundation 12, the termite-controlling agent layer 36 arranged on the side surface of the cloth foundation 12 reliably ensures that the termites are removed. We can prevent invasion. Needless to say, the application blocking layer 45 prevents the termiticide component contained in the termite-controlling agent layer 36 from entering the underfloor space S.

[0029]

As described above, the termite-controlling structure and the termite-controlling method of the present invention are capable of reliably preventing termites from penetrating by a termite-controlling agent-installed portion disposed at a location adjacent to a concrete interstitial layer and a cloth foundation. It is possible to reliably prevent the termiticide component from entering the underfloor space from the agent application section by the termite blocking section.

As a result, an excellent termite-controlling function can be exhibited, and the underfloor space can be prevented from being contaminated with a termiticide component, so that the environment of the underfloor space can be favorably maintained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a termite structure showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a termite structure showing another embodiment.

FIG. 3 is a sectional view of a termite structure showing another embodiment.

FIG. 4 is a cross-sectional view of a termite structure showing another embodiment.

FIG. 5 is a cross-sectional view of a termite structure showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ground 12 Cloth foundation 20 Soil concrete layer 32, 34, 36 Termite-proof construction part 42, 46 Blocking sheet 44 Spraying blocking layer 45 Smearing blocking layer S Underfloor space

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Nakagawa 1-1-4 Shinsenri-Nishimachi, Toyonaka-shi, Osaka National Housing Industry Co., Ltd. (72) Inventor Kiyoshi Akita 33, Sanjusha-machi 33, Fukui City, Fukui Prefecture 66 characters Fukubi Chemical Industry Co., Ltd. (72) Inventor Shiho Hasegawa 1-23-3 Oi, Shinagawa-ku, Tokyo Fukubi Chemical Industry Co., Ltd. Tokyo branch F term (reference) 2E001 DA01 DH14 FA21 FA22 GA06 GA24 GA53 HD11 LA04 LA10

Claims (6)

[Claims] 1. A termite structure in an underfloor space in which an interstitial concrete layer is cast on the ground surface surrounded by a cloth foundation, wherein the termites are disposed adjacent to the interstitial concrete layer and the cloth foundation. And an anti-termitic agent applied to the termite-controlling section, which is disposed on the underfloor space side of the adjacent portion between the interstitial concrete layer and the cloth foundation. An ant-proof structure including an ant killer. 2. The termite-controlling structure according to claim 1, wherein the termite-controlling agent blocking portion is a blocking sheet stuck from the surface of the underground concrete layer on the side of the underfloor space to the side surface of the cloth foundation. 3. The termite-controlling structure according to claim 1, wherein the termite-controlling agent blocking portion is a blocking coating layer applied from a surface of the underground concrete layer on the side of the underfloor space to a side surface of the cloth foundation. 4. The termite-controlling agent according to claim 1, wherein the termite-controlling portion is a termite-controlling agent layer disposed between an end face of the earth concrete layer and a side surface of the cloth foundation. Ant structure. 5. The termiticide application section is a termite-controlling agent layer applied from a surface of the underground floor of the earthen concrete layer to a side surface of the cloth foundation, and the termite-controlling agent blocking section is 2. The termite structure according to claim 1, wherein the termite structure is a barrier sheet that covers the termite-controlling agent layer and is attached from the surface of the underground concrete layer on the underfloor space side to the side surface of the cloth foundation. 3. 6. A method for controlling termites in an underfloor space in which an interstitial concrete layer is cast on a ground surface surrounded by a cloth foundation, wherein a termiticide is used at a location adjacent to the interstitial concrete layer and the cloth foundation. Step (a) of performing termite control construction, and in the underfloor space side of the adjacent location between the interstitial concrete layer and the cloth foundation, the termiticide applied to the termiticide application section enters the underfloor space side (B) performing a termite-controlling agent blocking portion for blocking the air.