JPH09195299A - Environment maintaining method under building floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve environmental maintenance under a floor by placing a mixture of inorganic porous powder and granule excluding powder and granular coal and powder and granular coal in a specified rate on the ground under the building floor. SOLUTION: Inorganic porous powder and granule has an average pole size of 20-100Å, a specific surface area of 20-200m<2> /gr and a mixture rate of 20-80wt.% with powder and granular coal. 50% or more of the inorganic porous powder and granule and the powder and granular coal is crushed granule which passes through an approximately 19mm sieve defined by JIS Z8801 and stays on an approximately 0.3mm sieve. Rot, insect and ant proofing treatment is given to at least one of the inorganic porous powder and granule and the powder and granular coal. In addition, these mixture is packed in an air-permeable bag to which rot, insect and ant proofing treatment is given and placed under a floor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for maintaining an environment under a building floor, and more particularly, for controlling humidity under the building floor, deodorizing, preserving, insect repellent and ant to maintain a good environment under the building floor. Regarding technology.

[0002]

2. Description of the Related Art In recent years, due to changes in building materials and construction methods, the hermeticity of buildings has become higher than before, and they are kept in a high humidity state that causes wood decay and ant damage. Often. Especially under the floor, there is more water than the soil surface,
The enclosed underfloor environment tends to be unfavorable for buildings. In such a case, it is necessary to apply antiseptic, insect repellent, and ant repellent treatment to the building, especially the wooden house, and also the following points. That is, under the floor, as moisture (humidity) rises from the soil surface,
Moisture (humidity) enters under the floor from the outside air, so it is necessary to absorb the moisture sufficiently and prevent it from rising to the top of the house. When it lacks, it will be a problem in terms of humidity control performance. In this case, even if antiseptic, insect repellent or ant repellant treatment is applied, it is easily understood from this aspect that the environment under the floor of the house falls into an unfavorable state.
On the other hand, under the floor of the house, an offensive odor is likely to occur, and various odors (offensive odors) are likely to stagnate due to the tightness of the house, etc. It is also necessary to consider the deodorizing aspect. Furthermore, even if such various treatments are performed, it is necessary to fully consider the workability and the natural environment aspects such as soil pollution. Conventionally, various methods have been attempted as these measures under the floor, but each method has advantages and disadvantages, and there is currently no method that is well balanced in terms of the above performance and the like. That is, for a long time, soil treatment agents (chemicals) have been sprayed on the underfloor soil for the purpose of controlling termites, and CCA treatment (treatment with chromium, copper, and arsenic compound-based wood preservatives, JIS K1554-1975).
It is using the timber base that was made. However, spraying a liquid drug onto the underfloor soil is a treatment method that contaminates the soil and also has a risk of the drug flowing out. Also, C
Although the CA-treated wood is effective in use, many problems have been pointed out when it is discarded, and it is not a preferable treatment method from the viewpoint of protecting the natural environment. The method of laying various sheets and films has drawbacks such that it takes time and effort to cut the sheet according to the shape of an irregularly shaped foundation, and tears of the sheet and pests such as termites come in and out from the joints. Japanese Utility Model Laid-Open No. 62-52605, JP-A-5-9
Japanese Patent No. 8717 discloses an underfloor, termite-proof and moisture-proof construction method using a termite-proof and moisture-proof sheet. With this construction method, moisture rising from the ground can be prevented, but moisture that enters the floor from the outside air can be prevented. Does not absorb moisture, there is a drawback that dew condensation is often seen on the upper surface of the sheet on a high-humidity day. Although an emulsion obtained by adding a drug to an asphalt emulsion and mixing the same has been carried out (Japanese Patent Laid-Open Nos. 56-115705 and 60-19834), in this method,
There are drawbacks such that it takes time to form the dry film, and the film is broken by stress when the film is dried. Japanese Patent Application Laid-Open No. 50-99870 discloses an insecticidal composition obtained by adsorbing a mixture of an insecticidal compound and a waterproof organic substance onto porous mineral particulates, and applying the composition to a ground surface under a house floor. Although the method of controlling house floor pests to be sprayed is described,
It is not a well-balanced method in terms of deodorizing effect and the like because of its lack of performance for controlling underfloor pests. Furthermore, JP-A-1-295948
The publication describes a control method in which a composition obtained by adsorbing an antiseptic, insect repellent and ant-repellent agent on activated carbon is sprayed on the soil surface under the floor of a house, but the activated carbon alone has high moisture absorption performance but lacks moisture release performance. Therefore, the humidity control performance may be difficult.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a technique capable of implementing the above-mentioned balanced environmental protection measures in an underfloor environment. The above and other objects and novel features of the present invention will become apparent from the description of the present specification.

[0004]

DISCLOSURE OF THE INVENTION The present invention is characterized by laying a mixture of an inorganic porous granular material excluding pulverized coal and pulverized coal on the soil surface under the floor of the building. In the preferred embodiment of the method for maintaining environment, the inorganic porous powder has an average pore radius of 20 to 100Å and a specific surface area of 20.
To 200 m ² / gr, the average pore radius of the pulverized coal is 1.5 to 100 Å, and the specific surface area is 50 to 600 m ² / g.
r, the mixing ratio of the inorganic porous powder and the granular coal to each other is 20 to 80% by weight, and 50% or more of the inorganic porous powder and the granular coal are JIS Z880.
It is a crushed grain that passes through the 19 mm sieve specified in 1 and stays on the 0.3 mm sieve, and at least one of the inorganic porous granular material and the pulverized coal has been subjected to antiseptic, insect repellent, and ant-terminated treatment. Further, the present invention is characterized in that a mixture of an inorganic porous powder and granular coal is housed in a breathable bag which has been subjected to antiseptic, insect repellent and ant repellent treatment and laid.

The inorganic porous powder or granule used in the present invention is a mixture of a porous powder and granules of an inorganic substance such as ground natural soil or natural rock. Various types of inorganic porous powder can be used, but typically, it is preferable to use crushed natural soil of diatomaceous earth. Pulverized natural soil of the diatomaceous earth is particularly excellent in moisture absorption and moisture release performance, among which the average pore radius is 20 to 10
0 °, preferably 20-60 °, and a specific surface area of 20-20
The one with 0 m ² / gr is good for the purpose of taking the balanced environmental preservation measures of the present invention. More than 50% (by weight) of the inorganic porous powder is JIS Z8
It is preferable that the crushed particles pass through a 19 mm sieve specified in 801 and remain on a 0.3 mm sieve. 0.3m
If it is less than m, there is a possibility that it may be scattered by wind or the like and the environment of leakage may be worse than that of the bag. In addition, when mixed with pulverized coal, the powder and the granular material are separated from each other, making it difficult to take balanced environmental conservation measures. On the other hand, 19 mm
If it exceeds, it becomes difficult to lay a small amount of it evenly on the soil surface, and when it is packed in a bag, it becomes more noticeable, and it becomes difficult to take balanced environmental protection measures.
It is particularly preferable that 50% (weight basis) or more of the inorganic porous powder is 8 mm defined by JIS Z8801.
The crushed granules that pass through the No. 1 sieve and remain on the 1.5 mm sieve. If the diameter of the crushed granules exceeds 1.5 mm, the termites cannot lift the crushed granules, further promoting the effect.

The pulverized coal used in the present invention means a carbonized powdery or granular substance or a mixture of these powdery substances and granular substances, for example, wood or coconut shells. By carbonizing the plants in
It is obtained by firing sludge and industrial waste. As described above, the granular coal may be in the form of powder, granular, or rod-like, but preferably granular coal having a particle size (diameter) of 0.3 to 19 mm. Particle size is 0.
If it is less than 3 mm, the particles are scattered when mixed with the inorganic porous particles, or when mixed with the inorganic porous particles, the powdered coal and the inorganic porous particles are separated and balanced. It is difficult to take environmental preservation measures.
When performing termite control, the drug is difficult to settle. on the other hand,
If it exceeds 19 mm, it is difficult to lay it evenly under the floor, even if the effect of absorbing and deodorizing is good, and it is difficult to take balanced environmental conservation measures unless it is used in large quantities. Pulverized coal has an average pore radius of 1.5 to 100 °.
And the specific surface area is 50 to 600 m ² / gr, preferably
Its average pore radius is 10-50 ° and its specific surface area is 100
It is preferably from 300 to 300 m ² / gr in order to mix the fine-grained coal with the inorganic porous fine powder and to take a balanced environmental preservation measure.

[0007] Pulverized coal has good adsorption and deodorizing effects, but has a drawback that it has a poor moisture releasing performance and does not easily release absorbed moisture. However, it is also excellent in moisture absorbing performance when mixed with inorganic porous powder. Moreover, it has excellent moisture releasing performance, and it becomes possible to take well-balanced environmental protection measures. Moreover, the inorganic porous powder alone has odor selectivity with respect to the deodorizing effect, and there are substances that adsorb well and substances that do not easily adsorb.
By mixing with activated carbon, the selectivity of the odor is reduced, and balanced environmental protection measures can be taken. In order to take such balanced environmental preservation measures, it is important to mix both substances in an appropriate mixing ratio.If there is too much fine coal in the inorganic porous powder, it is difficult to remove the moisture absorbed. If the powder is not released and the balance with the moisture release property cannot be obtained, or if the amount of the inorganic porous powder is too large relative to the powdered coal, the balance with the deodorizing performance cannot be obtained. From such a viewpoint, the mixing ratio of the granular coal in the mixture of the inorganic porous granular material and the granular coal in the present invention is preferably 20 to 80% by weight. When the mixing ratio of pulverized coal exceeds 80% by weight,
It does not readily release the absorbed moisture, resulting in a lack of moisture absorption and desorption performance, and is easily condensed under the floor. If the mixing ratio of the pulverized coal is less than 20% by weight, deodorization and negative ion effects on the earth are low, and it is difficult to maintain a healthy environment for humans.

In the present invention, at least one of the above-mentioned inorganic porous powder and granular coal is preferably subjected to antiseptic, insect repellent, and termite repellent treatment. Various preservatives, insect repellents, and termiticides (hereinafter sometimes simply referred to as chemicals) can be used for the preservation, insect repellent and termite repellent treatments. Examples thereof include organic phosphorus compounds, pyrethroid compounds, pyrethroid-like compounds, chloronicotyl compounds, carbamate compounds, organic chlorine compounds, tripropyl isocyanurate, imidacloprid, boron compounds, metal naphthenates, alkyl ammonium compounds. , Organic iodine compounds, phenols, 8-
Examples include oxyquinolinol copper, chlorophenol and bromophenol, chlornaphthalene, xylazanes, and other compounds. These drugs are formulated and used in a form suitable for the drug itself. The antiseptic according to the present invention,
In the insect and ant control treatment, a wood vinegar solution adsorption treatment can be performed. The wood vinegar can be obtained by carbonizing wood. When the liquid product obtained by carbonizing wood is allowed to stand, it separates into two layers. The upper layer containing acetic acid is wood vinegar. Hardwoods and conifers are used as wood species as raw materials. Waste material can also be used. The wood vinegar can be appropriately diluted with water for use. The wood vinegar solution contains harmful substances and low-boiling carbonyl compounds during its production. It also contains a part of wood tar, methanol, formaldehyde and the like. It is preferable to use a purified wood vinegar solution (pure wood vinegar solution). The wood vinegar solution contains acetic acid as an active ingredient in a high concentration, for example, near 73%. The pH is quite high, being 3 or less. As described above, when the antiseptic, insect repellent, and termite treatment are applied, when the treatment amount (adhesion amount) of the drug to the inorganic porous powder or activated carbon powder is too large,
On the contrary, it may worsen the living environment, so 10
It is preferable to keep it at less than wt%.

In the present invention, a mixture of the inorganic porous granular material (excluding the granular coal) and the granular coal may be laid on the soil surface under the floor of the building by spreading it to an appropriate thickness. However, if the mixture is packed in a breathable bag and the bag is placed on the soil surface under the floor of the house, the mixture will not be washed away by rainwater, wind, etc. Sex increases. In this case, it is preferable that one side (underfloor soil side) of the bag has moisture resistance and the other side has air permeability. The bag body is made of a breathable synthetic resin film, non-woven fabric, or the like. The bag may be subjected to antiseptic / insect / ant control treatment with the above-mentioned chemicals. In addition, when groundwater is high, if sheets such as plastic sheets are laid on the soil, and a mixture of inorganic porous powder and pulverized coal is laid on it, the mixture will have wet performance. Is preferable because it can be prevented from deteriorating.

According to the present invention, the effect of removing water is high under the floor, and the underfloor is prevented from falling into a high humidity state.
Not only is the moisture absorption performance high, but it also releases moisture as appropriate,
Humidity can be adjusted to an appropriate state, and it is highly effective in removing off-flavors that occur under the floor. At the same time, it prevents the invasion and reproduction of harmful insects such as termites, and destroys the natural environment through antiseptic, insect repellent and ant repellent treatments. It can be applied without doing so, and the environment under the floor can be favorably maintained.

[0011]

Next, examples of the present invention will be described. Example 1 The drug had an average pore radius of 3 so that the drug active ingredient of chlorpyrifos was contained in an amount of 1.0% (wt, hereinafter the same).
Material adsorbed on diatomaceous earth (wakkanai layer siliceous shale) with a surface area of 0 to 50Å and a specific surface area of 130 m ² / gr, and an average pore radius of 30
˜50Å, specific surface area 20 m ² / gr and diatomaceous earth, average pore radius 20 to 35 Å, specific surface area 200 m ² / gr
And the pulverized coal of No. 1 were mixed at a ratio of 15:65:20 to prepare a mixture. Both the pulverized coal and diatomaceous earth passed through a JIS Z8801 19 mm sieve,
Z8801 50 particles left on 0.3 mm sieve
It contained more than wt%. The mixture thus blended is tested for repellency and termite penetration based on the Japanese Wood Preservation Association Standard No. 17 "Method and Performance Standard for Indoor Termite Control of Non-wood Products Treated with Termites". The test was performed. In addition, the contact test was conducted according to the Japan Wood Preservation Association Standard No. 11 “Test method for controlling termite efficacy of wood termite control agent for coating / spraying / immersion treatment (1) Indoor test method”. Further, a moisture absorption / desorption performance test was performed as follows. That is,
Add 3 blend products to a petri dish (90 mm ¢ x 20 mmH).
Take 0 gr, weigh precisely, 150 ml of 30 ° C warm water at the bottom
Desiccator (inner diameter 180mm × 180mm
It was placed in H) and left in a thermostat at 40 ° C. for 7 days, and after the lapse of time, the sample was quickly measured to calculate the moisture absorption amount. afterwards,
The sample was allowed to stand at room temperature for 3 days, the weight of the sample was measured, and the amount of moisture released was determined. Further, the following test was performed to measure the deodorizing effect. That is, one of the detection tubes (Kitagawa-type detection tube, total capacity 10 liters) in which a tetra bag having a gas inlet protruding at the upper right end and a tetra bag having a gas inlet protruding at the upper left end are connected by a rubber pipe The measurement solution is put into the tetra bag side to be vaporized, and air is put in to adjust the initial gas concentration as described below.
0 g / 1 sample) was charged, and the gas was transferred from one tetrabag side connected with a rubber tube to the other tetrabag side, and the absorption amount (%) of the gas absorbed in the sample was measured. Gas initial concentration: ammonia gas 1000 p. p. acetic acid gas 1000 p. p. m pyridine 200 p. p. m mercaptan 10 p. p. m trimethylbutane 10 p. p. m hydrogen sulfide 1000 p. p. m Test results are shown in Tables 1 to 3 and 5 to 6.

Example 2 A diatomaceous earth (wakkanai layer siliceous shale) having an average pore radius of 50 to 80Å and a specific surface area of 90 m ² / gr was used so that 0.2% of the drug active ingredient of permethrin was contained. Adsorbed on, the average pore radius is 20 ~ 35Å, the specific surface area is 1
80 m ² / gr diatomaceous earth having an average pore radius of 60 to 80
Å, pulverized coal having a specific surface area of 50 to 100 m ² / gr (these diatomaceous earth and pulverized coal are both JIS Z8801)
8mm sieve, JIS Z8801 1.5mm
Contains 50 wt% or more of the powdery particles remaining on the sieve. ) And
Except for using a mixture blended at a ratio of 5:65:30,
It was the same as in Example 1. The test results are shown in Tables 1 to 3 and 5 to 6.

Example 3 The average pore radius is 20 to 40Å and the specific surface area is 190 to 20.
0 m ² / gr diatomaceous earth (wakkanai siliceous shale), average pore radius of 5 to 20 °, specific surface area of 500 to 600 m ² / gr
Coal ((These diatomaceous earth and coal are both JIS
Z88018mm sieve, JIS Z8801
The powder contains 50 wt% or more of the particles remaining on the 2 mm sieve. ) Was used in the same manner as in Example 1 except that a mixture in which 50:50 was used was used. The test results are shown in Tables 1 to 3
And shown in Table 5 to Table 6.

Example 4 Diatomaceous earth (wakkanai layer siliceous shale) having an average pore radius of 70Å and a specific surface area of 100 m ² / gr and an average pore radius of 35 to 60
粉, pulverized coal having a specific surface area of 300 m ² / gr ((both diatomaceous earth and pulverized coal are JIS Z88018 mm
Containing 50 wt% or more of the powdery granules that passed through the sieve of No. JIS Z8801 and remained on a 0.5 mm sieve. ) And 20:
The same procedure as in Example 1 was carried out except that the mixture compounded in a ratio of 80 was placed in a bag made of synthetic resin having air permeability on one side and one side containing 1.0% of chlorpyrifos as a drug active ingredient. The test results are shown in Tables 1 to 3 and 5 to 6.

Example 5 A substance obtained by adsorbing the drug as an active ingredient of bifenthrin on powdered coal having an average pore radius of 30 to 50Å and a specific surface area of 500 m ² / gr so that the active ingredient of the drug is contained at 0.05%. And diatomaceous earth (wakkanai layer siliceous shale) having an average pore radius of 50Å and a specific surface area of 60 m ² / gr (both JIS Z880
After passing through a 18 mm sieve, JIS Z8801 1 mm
Contains 50 wt% or more of the powdery particles remaining on the sieve. ), 7
The procedure was the same as in Example 1, except that a mixture blended at a ratio of 0:30 was used. The test results are shown in Tables 1 to 3 and 5 to 6.

Comparative Example 1 The same procedure as in Example 1 was carried out except that coconut husk activated carbon without any chemical treatment was used alone. The test results are shown in Table 1 to Table 2 and Table 4 to
It is shown in Table 6.

Comparative Example 2 Sepiolite having an average pore radius of 10 to 15 nm without chemical treatment (JIS Z8801, passed through a sieve of 8 mm, JIS
50% by weight of the powder and granules remaining on the Z8801 2mm sieve
% Or more. ) Was used alone, and the same as in Example 1. The test results are shown in Tables 1 to 2 and 4 to 6.

Comparative Example 3 Example 1 was repeated except that activated carbon having an average pore radius of 15 nm obtained by firing pulp sludge without chemical treatment was used alone.
Same as. The test results are shown in Tables 1 to 2 and 4 to 6
Shown in

[0019]

[Table 1]

[0020]

[Table 2]

[0021]

[Table 3]

[0022]

[Table 4]

[0023]

[Table 5]

[0024]

[Table 6]

Although the invention made by the present inventor has been specifically described based on the embodiments, the invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention. Needless to say.

[0026]

The effects obtained by the representative ones of the inventions disclosed in the present application will be briefly described as follows. That is, according to the present invention, in the underfloor, a high effect of removing water, preventing the underfloor from falling into a high-humidity state, not only the moisture absorption performance is high, but also moisture is appropriately released to reduce the humidity. It can be adjusted to an appropriate state, and
It is highly effective in removing offensive odors that occur under the floor, and at the same time prevents the invasion and reproduction of harmful insects such as termites, thus preserving and controlling insects.
The anti-termite treatment can be applied without destroying the natural environment, and the environment under the floor can be preferably preserved.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location E02D 27/01 E02D 27/01 A E04B 1/64 E04B 1/64 A 1/72 1/72 ( 71) Applicant 392012397 Chemiholtz Co., Ltd. Kumiyama-cho, Kuse-gun, Kyoto Prefecture Osamu, Sayama, Shinkaji 194-1 (72) Inventor Yoshinaga Katsuzawa 4-13-1, Itabashi, Itabashi-ku, Tokyo (72) Invention Shigeo Yoshida 1-4-1 Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture National Housing Industry Co., Ltd. (72) Inventor Ryo Nagai 2 2321 Tachicho, Toki City, Gifu Prefecture Takasago Industrial Co., Ltd. (72) Inventor Takanobu Saito, Kumiyama-cho, Kuse-gun, Kyoto, Oaza, Sayama, Shinkaichi 194-1 Chemiholtz Co., Ltd.

Claims (7)

[Claims] 1. A method for maintaining the environment under a building floor, which comprises laying a mixture of an inorganic porous granular material excluding the pulverized coal and the pulverized coal on a soil surface under the floor of the building. 2. The inorganic porous powder has an average pore radius of 20.
2. The method for maintaining an environment under a building floor according to claim 1, wherein the specific surface area is 20 to ²⁰⁰ m ² / gr. 3. The pulverized coal has an average pore radius of 1.5 to 100.
The method for maintaining an environment under a building floor according to claim 1, wherein the specific surface area is 50 to 600 m ² / gr. 4. The under-floor environment of a building according to claim 1, wherein the mixing ratio of the inorganic porous powder and the powdered coal is 20 to 80% by weight. Maintenance method. 5. The method according to claim 1, wherein 50% or more of the inorganic porous powder and the granular coal are pulverized particles that pass through a 19 mm sieve specified in JISZ8801 and remain on a 0.3 mm sieve. The method for maintaining an environment under a building floor according to claim 1, 2, 3, or 4. 6. The building according to claim 1, 2, 3, 4 or 5, characterized in that at least one of the inorganic porous granular material and the granular coal has been subjected to antiseptic, insect repellant, and ant ant treatment. Environment maintenance method under the floor. 7. The method according to claim 1, wherein the mixture of the inorganic porous granular material and the granular coal is housed in a breathable bag that has been subjected to antiseptic, insect repellent and ant-preventive treatment, and laid. 2, 3,
4. An environmental maintenance method under a building floor according to 4, 5, or 6.