JPH086379B2 - Ant-proof cloth basic method - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a termite cloth foundation construction method, and more specifically, it protects the present building by shutting out climbing of termites from the ground below the floor. The present invention relates to a new construction method capable of efficiently constructing an anti-termite cloth foundation.

[Conventional technology and technical problems to be solved]

As is well known, when constructing a wooden house, a cloth foundation is laid around the building site where the earth bearing capacity has been strengthened by earthwork, and the foundation is laid by fixing wood on this cloth foundation with anchor bolts, etc. It is usual to build a house on it.

By the way, in a wooden house constructed by such a cloth foundation method, heating has become widespread in recent years, and there is a problem that termites nest in the ground under the floor where ventilation is not good and it tends to be moist, and the wood part of the house is damaged It is occurring frequently and it is necessary to take anti-termite measures.

However, most of the termite control measures that have been implemented so far are mainly chemical application methods in which termite control agents such as chlordane and organophosphorus insecticides are applied to the building site. When an insecticide with a long-lasting effect such as chlordane is used, the sprayed chemical penetrates deep into the ground and pollutes groundwater, or flows into rivers to pollute crops and seafood, causing pollution. However, if an insecticide with good decomposability such as fenitrothion is used, the termite control power will disappear in about a year, and it will prevent termite feeding damage over the normal expected life of a house. There was a weakness that it did not exist.

In order to solve such a problem, the present inventor applies a paint containing a termite controlling agent to the entire circumference of the side surface of a cloth foundation that is provided around a building site, so that termites can be applied to the cloth foundation. "A method for preventing the formation of ant roads by termites" that prevents the formation of ridges and creeping up to the base (Japanese Patent Laid-Open No. 60-13
3141, Japanese Patent Publication No. 63-19548, Japanese Patent Publication No. 64-8034
(See Japanese Patent Publication). However, the work of applying a termite control paint on the surface of the cloth foundation is quite troublesome, and some construction workers who are required to reduce the construction cost and shorten the construction period do not welcome it. Although it was effective as, it was because there was another resistance to the spread.

The present invention is based on the belief that not forming a termite path on a cloth foundation is the most effective means for protecting wooden houses from termite feeding damage.
It is a technical issue to reduce the work load pointed out in the termite prevention method of No. 60-133141 and to provide an effective anti-termite cloth foundation construction method for reducing the construction cost and the construction period. is there.

Another technical problem of the present invention is to efficiently protect a cloth foundation that has no fear of causing pollution such as environmental pollution and can protect a wooden house from termites for a long period of time. To provide a new way to build.

Further, another technical problem of the present invention is to provide a new technique capable of carrying out a highly reliable foundation work with a uniform termite control effect by prefabricating the construction of the termite control cloth foundation. .

[Means adopted for solving the problem]

Means adopted by the present inventor to solve the above-mentioned technical problems are as follows.

That is, the present invention is a concrete mold material molded for fabric foundation construction, a means of including a termite control agent which is not decomposed by an alkaline component in the concrete mold material. By adopting it, a concrete formwork having termite-controlling power was obtained, and further, a foundation bed B in which such a concrete formwork agent 1.1 having the termite-controlling power was formed by geotechnical construction work. The frame member 1 is fixed by fixing the frame to the upper part, and by pouring the concrete 2 into the cavity C surrounded by these frame members 1 ...
The termite integrated with 1 ... made it possible to construct the ant-repellent cloth foundation F in which an ant path cannot be formed, and the above-mentioned technical problems were solved all at once.

〔Example〕

Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. In addition, FIG. 1 and FIG. 2 are perspective views of main parts showing a process of constructing a dovetail cloth foundation using a concrete form material specifically made for the method of the present invention, and FIG. FIG. 4 is a plan view showing another example of the shape of a concrete formwork member manufactured especially for use in the method of the present invention.

In the drawings, reference numeral 1 indicates a concrete form material molded for building a cloth foundation, and the concrete structure contains and holds a termite controlling agent which is not decomposed by an alkaline component. There is. Therefore, in manufacturing the concrete formwork material 1 for constructing a cloth foundation by mixing a termite controlling agent into concrete, the present inventor found that among the insecticides that are toxic to termites, the alkalinity of the concrete has We adopted a method of selecting and mixing an alkali-resistant termite control agent that is not decomposed by, or mixing an insecticide that is toxic to termites by coating with microcapsules and guarding.

Explaining this point in more detail, first, as an alkali-resistant termite control agent, i. Dimethyl (phenyl) silylmethyl 3-phenoxybenzyl ether [dimethyl (phenyl) silylmethyl 3-phenoxybenzyl e
ther] ii. dimethyl (phenyl) silylmethyl 2-phenoxy-6-pyridylmethyl [dimethyl (phenyl) silylmethyl 2-phenoxy-6-py
ridylmethyl] iii. 4-bromo 2,5-dichlorophenol [4-bromo 2,
It is advisable to adopt the above i or ii organosilicon pyrethroid insecticide such as a mixed serial control agent of 5-dichlorophenol] and octachlorodipylether [S-421], or the mixed insecticide of iii above.
When mixing these insecticides into concrete, 0.5-4 w% is used when the former organosilicon pyrethroid insecticide is used, and 1.0-6 w% is used when the latter mixed iii insecticide is used. It should be evenly dispersed in the formwork material. In this case, it is also effective to prepare a vinyl acetate emulsion of these agents and mix them into concrete as an admixture. An example of the formulation is as follows.

20 parts by weight of organosilicon-containing pyrethroid insecticide of the above i Solid content concentration (8w%), 3 parts of vinyl acetate emulsion 80 parts by weight The above and are mixed to prepare a vinyl acetate emulsion containing organosilicon-containing pyrethroid, 10% of this for cement and gravel (w / w for concrete formwork)
Well known autoclave method (autoclave metho
According to d), it is molded into a form as shown in FIG.
When using the autoclave method, a steaming temperature of 180 ° C
It has a history of about 0 hours, and even if it is not based on the autoclave method, it is necessary to cultivate it for about 3 weeks at room temperature, but in that case, contact with an alkaline component of pH 12 to 13, Moreover, the temperature of 80 ° C. is recorded due to the hydration reaction during concrete hardening, and in any case, the pesticide component will be molded under extremely severe conditions. It has been confirmed that the organosilicon-containing pyrethroid-based termite control agent is sufficiently resistant.

Next, when using a termite control agent coated with microcapsules, the microcapsule termite control agent should also be used.
It may be dispersed in the above 40% mixed vinyl acetate emulsion and molded into a mold shape in the same manner as above. In this case, it will not decompose even with an organophosphorous termite control agent such as fenitrothion, It can exert termite control ability.

In constructing a dovetail cloth foundation using the concrete mold material 1 produced by the above method, the construction may be performed as follows.

First of all, the trenchexcava which was dug in the building site.
foundation bed B having a strong earth bearing capacity is formed by performing earthwork construction on the groove bottom portion of (tion), and underfooting U (underfooting) is further formed on the formed bed B by on-site driving of concrete.

Next, when the above-mentioned underfooting U is sufficiently hardened, the concrete mold material 1 containing the termite controlling agent prepared by the above-mentioned method is provided along both side walls of the hole groove as shown in FIG. Then, a cavity C is created between the facing mold materials 1 and 1, while the mold members 1, 1, ... Are stably fixed by an unillustrated indicating means such as a stay bolt or a wood block.

Thus, when the concrete is cast in-situ into the cavity C formed by the concrete form material 1.1, and is hardened, the concrete form material 1 ,. Thus, the cloth foundation F having the ant-repellent effect on the side surface is completed (No. 2)
See figure).

On the P surface of the site surrounded by the termite-proof cloth foundation F thus constructed, the termite-controlling agent-containing sheet 3 is further spread, and the end of the termite-proof sheet 3 and the hem of the cloth terminator F are placed. As shown in FIG. 2, when the mutual space is sealed by taking measures such as folding up and closely contacting each other, it becomes possible to more completely prevent the formation of the termite dovetail.

Although the outline of the method of the present invention has been clarified through the explanation of the above-mentioned embodiments, the present invention is by no means limited to the above-mentioned embodiments, and various modifications can be made within the scope of the claims. Needless to say, for example, as a method of mixing a termite control agent in concrete in a form that is not decomposed by an alkaline component, in addition to a means of forming by encapsulation in a concrete mold, a termite control agent in a synthetic resin is used. The present inventor has also carried out a construction test for an example of using a concrete formwork obtained by mixing and crushing the synthetic resin into finely crushed or finely chopped into the cement after mixing into Even when such an anti-termite cloth basic constituent material is used, it goes without saying that it belongs to the technical scope of the present invention.

Also, the concrete shape of the concrete formwork-shaped dovetail cloth base constituent material obtained by the present invention is not limited to that shown in FIG. 1, but may be made in a block shape as shown in FIG. Naturally, this is possible, and by making such a form, the bonding strength between the form members 1, 1, ... And the concrete 2 is improved, and the cloth foundation can be easily constructed.

[Effect of the present invention]

As described above with reference to the embodiments, according to the present invention, the following effects can be obtained.

i. Since the concrete formwork material that has been joined and integrated with the poured concrete is exposed on the outer surface of the cloth foundation, the termite control agent contained in the formwork material continues to vaporize for a long period of time to remove termites. Since the ant road is not formed on the side surface of the cloth foundation, it is possible to protect the house built on it from termites for a long period of time.

ii. When an organic silicon-containing pyrethroid-based termite control agent is used or when a microencapsulated termite control agent is used, the active ingredient for termite control decomposes even after a high temperature near 200 ° C for a long time. Therefore, it is possible to factory-produce the cloth foundation constituent material of the present invention, and it is possible to reduce the material cost in the construction of the dovetail cloth foundation due to the cost reduction by mass production.

iii. Prefabrication of the dovetail cloth foundation components based on factory production can be realized, so it is possible to carry out highly reliable dovetail cloth foundation work with a uniform dovetail effect.

iv. Since there is no need for painting work such as applying a ant-preventive paint after the conventional cloth foundation is finished, it can contribute to shortening the construction period and reducing the construction cost.

v. With the simple supplementary work of sealing the surface of the building site surrounded by the termite-proof cloth foundation constructed by the method of the present invention with the termite-proof sheet, the termite-proof measure can be made more complete.

As described above, the present invention can make the termite-proofing work itself of the building foundation itself much more efficient and reliable than the conventional method, and further, the construction cost can be reduced and the construction period can be shortened. This is a great advantage for both the owner and the contractor.

[Brief description of drawings]

FIG. 1 and FIG. 2 are perspective explanatory views of a main part showing a process for constructing a dovetail cloth foundation of the present invention, and FIG. 3 shows another example of the shape of a concrete formwork member used in the method of the present invention. It is a top view. 1 ... Concrete form material, 2 ... concrete, 3 ... termite-proof sheet. B ... Foundation bed, C ... Cavity, P ... Site, U ... Underfooting.

Claims (4)

[Claims] 1. When constructing a cloth foundation on a foundation bed B formed by geotechnical construction work, a concrete form material 1.1 ... made by mixing a termite controlling agent into a state that does not decompose with alkali is used for the bed. After the frame is fixed on B, concrete 2 is driven into the cavity C surrounded by the mold materials 1.1, and is cured, so that the mold members 1.1 ,.
An anti-termite cloth foundation method characterized by forming a cloth foundation F that is integrated with. 2. A concrete form material 1.1 ...
The method for constructing an anti-termite cloth according to claim 1, wherein a concrete form material containing an organosilicon-containing pyrethroid termite controlling agent is used. 3. A concrete form material 1.1 ...
The method for constructing an anti-termite cloth according to claim 1, wherein a concrete form material mixed with an organic phosphorus-based termite controlling agent in a form encapsulated with microcapsules is used. 4. When constructing a cloth foundation on a foundation bed B formed by geotechnical construction work, a concrete form material 1.1 ... made by mixing a termite controlling agent into a state that does not decompose with alkali is used for the bed. After the frame is fixed on B, concrete 2 is driven into the cavity C surrounded by the mold members 1.1, and hardened to form a cloth foundation F integrated with the mold members 1.1. Further, the surface P of the site surrounded by the cloth base F is covered with a termite control sheet 3 containing a termite controlling agent, and a space between the end of the termite control sheet 3 and the cloth base F is sealed. The characteristic method of building an anti-termite cloth.