JP2003253841A - Thin soil coat coating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin soil coat coating method which can be applied to any structure inside or outside a building for providing a strong adhesivity between a soil coating material mainly composed of natural soil and lathing of concrete or the like, providing strength, hardness and water resistance in a coating layer and fineness in a coating surface, maintaining a property of the natural soil, and shortening a construction period. <P>SOLUTION: In the thin soil coat coating method, the coating layer is formed by coating the soil coating material mainly composed of the natural soil and containing an inorganic hardener on a lathing face. The soil coating material is directly coated by a trowel before hardening of a lathing material of the lathing face, and the coating layer after hardening maintains the property of the natural soil. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating method in which a soil coating material containing natural soil as a main component is troweled and coated, which has excellent adhesiveness to a substrate and is excellent in hardness, strength and water resistance. In addition, the present invention relates to a soil thin coating method which can be applied to the inside and outside of a building as well as the outside by providing the characteristics of the natural soil of the material to the coated portion after curing and the texture.

[0002]

2. Description of the Related Art In recent years, a living environment in which nature is incorporated into urban functions has been oriented, and natural materials are used as materials for floors and walls of buildings, ceilings, exterior walls of buildings, outdoor passages, plaza floors, and fences. It is required to be constructed, and it has harmony with the natural environment and aesthetics obtained by the conventional plastering method, and also contributes to health by utilizing air permeability, water absorption, water permeability, etc. of the material to purify air. There is a need for a construction method that uses a soil coating material whose main material is natural soil.

However, in the conventional plastering method using natural soil as a main component, due to the insufficient strength of the earth coating material itself, dust is vulnerable to friction and scratches. There is a drawback that the function and appearance will be impaired in a short period of time due to difference or peeling or collapse due to insufficient adhesion with the base, and it will re-muddy outside due to rainwater or sprinkling, which will impair aesthetics and walkability. There is a problem that it collapses when it is remarkable.

Particularly, in the conventional plastering method, since soil is used as a main material, the strength is insufficient.
For example, construction could not be done inside the buildings of schools, hospitals, stores, etc. or on the floor of corridors.

Further, in the conventional coating method in which the earth coating material is applied after the concrete such as the base is completely hardened, for example, direct iron pressing finish or cement-based color cleat finish, the nature of soil remains on the surface to be coated. The soil lacks the warmth and kindness peculiar to soil, and it takes a long time to dry and harden the groundwork, resulting in a long construction period, and construction costs are high because of the number of construction steps such as groundworking.

Therefore, in the conventional plastering method, it is difficult to form a thin coating layer of a soil coating material containing natural soil as a main component on the surface of the foundation such as concrete, mortar, and earth wall, and the surface of the foundation is treated as the foundation. It was impossible to make full use of the humidity control function and air purification function of the base itself by covering and integrating with a soil coating material having the same properties.

In addition, in the case of coating with an organic coating material or a soil coating material containing an organic curing agent, although the strength and water resistance of the coating layer are excellent, the surface of the base is sealed, and the above-mentioned characteristics of the base itself are present. I couldn't make the most of it.

[0008]

DISCLOSURE OF THE INVENTION The present invention is to improve the conventional coating method by the plastering method. It uses a soil as a main material and obtains a strong adhesiveness to an underlayer such as concrete to form a coating layer. It has strength, hardness, water resistance, and the denseness of the painted surface, and maintains the characteristics such as the nature and texture of natural soil, and has a living environment in harmony with nature. It is an object of the present invention to provide a soil thin-coating method that is mainly composed of natural soil, which can be applied to any structure such as a fence, and can shorten the construction period and reduce the coating cost.

[0009]

The invention according to claim 1 provides an earth coating material containing natural soil as a main component and an inorganic curing agent,
A soil thin coating coating method for coating a ground layer to form a coating layer, wherein the soil coating material is directly and thinly trowel coated onto the ground surface, and the coating layer after curing is a natural soil property. It is a thin earth coating method which is characterized by maintaining.

According to the soil thin-coating method of the present invention, the soil-coating material is directly and thinly trowel-coated on the base surface,
A thin coating layer that has hardness and strength on the surface of the substrate at room temperature is formed to a uniform thickness without the need for an adhesive or an assimilating agent with the substrate, and the coating layer maintains the properties of natural soil and texture. Even after hardening, it has the breathability, water absorption, water permeability, and dew condensation prevention of natural soil, and the surface has a dense and smooth finish that keeps the warmth and tenderness of the soil. It is also possible to add design characteristics.

According to this soil thin coating method,
On the surface of concrete, mortar, earth wall, etc. as a base, a thin coating layer of earth coating material with the property of natural soil is integrally formed, so the functions of the base material and coating layer are made common and the base itself has The humidity control function and the air purification function can be exerted through the coating layer, and the characteristics of the base, which were not possible by the conventional method, can be fully utilized.

Further, according to this earth thin coating method,
You can finish the paint layer with hardness and strength similar to pottery,
It is possible to enable construction on a floor surface with a clay coating material, which was impossible in the past. Further, by finishing the high-hardness coating layer thin, it is possible to prevent peeling from the base and cracks and improve the durability.

A second aspect of the present invention is the soil thin coating method according to the first aspect, characterized in that the soil coating material is applied by trowel coating before the base material of the base surface is cured.

In the soil thin coating method according to the present invention, the soil coating material is applied before the base material is cured, particularly immediately before it is cured.
It is possible to form a coating layer by virtue of the mutual penetration effect between the viscous base material and the soil coating material, the so-called "familiar" effect, and the integration of both, and having a strong thin adhesive layer between them. Since it is possible to prevent the peeling of the coating layer from the base,
It is also possible to form a thin coating layer of about mm.

According to a third aspect of the present invention, the raw mortar applied to the surface of the portion to be coated is used as a base surface, and the earth coating material is troweled on the ground surface of the raw mortar. It is the soil thin coating method described in 2.

In the soil thin coating method of the present invention, existing concrete floors, mortar walls or soil walls, boards,
It is possible to apply raw mortar on the surface of the base material such as panels as a base, and the earth coating material can be applied before hardening of the raw mortar, so a soil thin coating method can be applied to any existing base It is possible to provide the same effect as above.

According to a fourth aspect of the invention, the inorganic curing agent is
At least one selected from an inorganic compound, a magnesium compound, and a sulfur oxide, which has one or more elements selected from the group consisting of alkali metals, carbons, nitrogens, halogens, and irons in the periodic table. One type and water, or water glass, or a mixture of water and water glass, and troweling an earth coating material obtained by adding and kneading the mixture to the earth material whose main component is the natural earth on the ground surface. It paints, It is the earth thin coating coating method in any one of Claims 1-3.

In the soil thin-coating method of the present invention, a coating material having a higher hardness, a higher strength, and a highly dense base material and excellent adhesiveness is formed by curing a soil material containing natural soil as a main component. In addition, it is possible to maintain characteristics such as nature and texture of natural soil in the paint layer.

The invention of claim 5 is characterized in that the earth coating material contains an electromagnetic radiation substance or a health-promoting inorganic substance such as diatomaceous earth, Hakushu soil, shells and zeolite. It is the soil thin coating method described in crab.

In the soil thin coating method of the present invention, the coating layer can have an effective air purifying effect and a health promoting function in addition to the air permeability, water absorption and dew condensation preventing effect of natural soil. Especially when applied to indoor structures, the effect becomes higher.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION The soil thin coating method using a soil material containing natural soil as a main component according to the present invention will be specifically described below.

A typical natural soil constituting the soil material that can be used in the present invention is soil mainly composed of clay such as carion, bentonite, and gyrrome clay, and the soil is dried to be ground powder. The average particle size is preferably 0.
It is less than 01 mm.

As the composition ratio of the soil material of the soil, the soil preferably constitutes 40% by weight or more of the seed agent, and more preferably 50% by weight or more. If the composition ratio of the soil component in this soil material is low, it will be difficult to maintain the characteristics such as properties and texture of natural soil in the coating layer after curing.

From the viewpoint of antibacterial property and antifungal property after construction, it is preferable to heat the soil to make it inorganic, and in this case, it is preferable to heat it to a temperature of 100 to 800 ° C.

As other compounding agents constituting the above-mentioned soil material, silica sand (No. 5 to No. 7) as an aggregate for adjusting the viscosity of the soil material, mountain sand with a particle diameter of 0.5 to 5 mm, particle diameter 0.5-5
mm scallop shell and at least one kind of zeolite having a particle size of 0.5 to 5 mm, or a mixture of two or more kinds can be blended. The mixing amount is preferably 30 to 60 parts by weight with respect to 100 parts by weight of the soil material, and the mixed soil in which the aggregate is mixed and agitated is further mixed with 100 parts by weight of the mixed soil with powdery magnesium chloride as a coagulant 20 ~
The soil material can also be prepared by mixing 40 parts by weight, preferably 25 to 35 parts by weight and stirring and mixing.

The inorganic curing agent used in the present invention is an inorganic compound having 1 of an element belonging to at least one of alkali metal, carbon group, nitrogen group, halogen group and iron group in the periodic table of elements. A mixture of at least one selected from a magnesium compound and a sulfur oxide, and water and water glass, or any one of them.

Examples of the alkali metal compound include sodium salts such as sodium chloride, sodium carbonate and sodium nitrate, potassium salts such as potassium chloride, potassium carbonate, potassium nitrate and potassium sulfate.

The carbon group compounds include silicon dioxide, the nitrogen group compounds include phosphoric acid and sodium phosphate, the halogen group compounds such as magnesium chloride and calcium chloride, and the iron group compounds including iron oxide ( FeO, Fe ₂ O ₃ ), iron sulfide (FeS, Fe
₂ S ₃ ) and the like are exemplified.

In addition to magnesium chloride, magnesium compounds such as magnesium silicate and magnesium sulfate, sulfur oxides such as sulfur monoxide and sulfur dioxide,
Examples include sulfur tetraoxide.

As water glass, JIS No. 1,
No. 2 is acceptable, and the molar ratio of silicic acid and soda is not particularly limited as long as it is within the usual range (2 to 4).

The hardener solution containing the above various hardeners is, for example, 20 to 40 parts by weight of magnesium oxide, 2 to 5 parts by weight of iron sulfide, and 1 to 3 of sulfur tetraoxide with respect to 100 parts by weight of water. An example is one in which 8 to 13 parts by weight of silicon dioxide, 3 to 6 parts by weight of iron oxide are added and mixed, and further 50 to 70 parts by weight of water glass is added and mixed.

In addition to the above-mentioned inorganic curing agent as a soil material curing agent, 7 to 10 parts by weight of cement may be preliminarily mixed with the soil material with respect to 100 parts by weight of the soil material. This cement is not particularly limited, but a normal Portland cement having an appropriate setting time can be used.

The soil coating material used in the present invention is kneaded by adding a predetermined amount of a curing agent solution containing the curing agent to the soil material containing natural soil as a main component, stirring the mixture, and using a hand mixer. , Adjusted.

The amount of the hardener solution added at this time is appropriately adjusted depending on the content of the coating agent, the coating application, the state of the base, and the fluidity and viscosity of the soil coating material when kneaded, but usually the soil is used. A range of 3 to 5 liters of hardener solution is shown for 100 Kg of material.

If a coloring agent, colored soil, red shell, etc. are appropriately added during stirring, the working surface can be colored freely.

In the hardening agent solution, for example, "hemp susa" in which hemp is chopped is added as a "tie" for strengthening the bond between the soil particles of the soil material to 0.1 to 100 parts by weight of the hardening agent solution.
It is preferable to add 0.2 part by weight. This "susa" includes fibrous materials such as straw, hemp, other cloths and strings, ropes, papers, wood chips, tree bark such as shrouds, and organic materials such as glues, stainless steel wires and iron wires. Inorganic materials such as wires, stone powder, and glass powder can be appropriately added and used in appropriate amounts.

Further, as the earth coating material, an electromagnetic wave radiating substance, for example, a natural ore called "tourmaline ore", which emits an electromagnetic wave of 4 to 14 μm, silicon dioxide, and aluminum oxide as a main component and having a far infrared effect "Gaia Stone". Natural stone called, or diatomaceous earth, Hakushu soil,
Add health-promoting inorganic substances such as shells and zeolite,
In addition to the breathability, water absorption, and water permeability of natural soil, sterilization,
It is also possible to sterilize and deodorize tobacco odors, and to impart air purifying effect of absorbing harmful substances such as formaldehyde and a health promoting function to the soil coating material, and trowel coating the soil coating material as a health-oriented building material.

As the above-mentioned curing agent, a commercially available curing agent may be added to a soil material containing natural soil as a main component, and other insufficient components may be additionally mixed and used. As a commercial product,
For example, "FC100" manufactured by Global Environmental Technology Research Institute Co., Ltd.
0 ”,“ FC2000 ”,“ Masado ”manufactured by Umehiko Co., Ltd.,“ NSC curing agent ”manufactured by MAU Environmental Chemistry Research Institute,“ MR7 ”manufactured by Kicho Co., Ltd., etc. can be used.

(Example) An example of the soil thin coating method of the present invention will be described below based on an example of construction on a floor surface.

As shown in FIG. 1, the formation (2) of the floor (1)
Fresh concrete as a base (3) (fresh mortar, sandy concrete or mixed green soil (commercial hardened mixed soil)
), And apply it evenly with a plastering trowel, or even out with a trowel or sapwood, etc. Using a plastering trowel, apply 4) directly to the surface of the base so that the coating thickness is 1 to 5 mm, and rub it so that the surface of the base and the earth-coating material fit together well. A coating layer (5) is formed.

Then, the applied soil coating material (4) was gradually pressed with a trowel to press it for 1 to 5 times, and the coating layer (5) which had been pressed by the trowel was hardened. Immediately afterward, after-pressing 1 to 3 times is performed with a plastering trowel to give a final finish, and then completely cured. A mechanical iron (such as a trowel) can be used for the iron coating and the iron pressing.

As a result, as shown in the sectional view of the floor (1) in FIG. 2, the coating layer (5) is integrated with the concrete underlayer (3) provided on the ground layer (2) and is firmly bonded. It is possible to obtain a thin coating layer (5) which has a good property, has high strength and hardness comparable to those of ceramics, and has a dense and smooth surface.
Of course, this coating layer (5) maintains the properties such as breathability, water absorption, water permeability, and dew condensation prevention of natural soil, which is a natural material, as well as the warmth and tenderness of the natural material, and the texture. Moreover, it has excellent resistance to peeling and cracking.

Then, the base material (3) having a common property and function and the coating layer (5) are integrated, and the humidity control function and the air purifying function of the concrete (3) as the base material are provided through the coating layer (5). It can be used to improve the living environment and promote health.

The thin soil coating method of the present invention is characterized in that a thin coating layer of, for example, about 1 mm is formed as described above, but a thick coating layer can of course be formed. However, if it is too thick, the weight of the structure increases,
It is not preferable because the material cost, the construction man-hours, and the construction period are prolonged and economically disadvantageous.

The earth coating material may be used by adding the above-mentioned electromagnetic wave radiating substance or an inorganic substance such as diatomaceous earth, Hakushu soil, shells, zeolite and the like, which is effective for promoting environment and health, such as minerals and earth. . As a result, in addition to the breathability, water absorption, water permeability, and dew condensation prevention of natural soil, it is possible to provide a further air purification effect and a health promotion function. Especially when applied to indoor structures, that effect Is highly preferred.

Further, the soil thin coating method of the present invention can be applied to existing indoor and outdoor structures such as floors, walls and ceilings, and can be used for indoor and outdoor remodeling, remodeling and repair. it can.

In the following, as another example, an example of construction of a thin soil coating method on an existing cured substrate surface will be described.

The construction example of the soil thin coating method shown in FIG.
An existing concrete-finished wall (10) is used as a coating part, and the surface (12) of the concrete wall is evenly and uniformly coated with raw mortar (13) as a base. Using the plastering trowel, adjust the soil coating material (14) on the surface of the raw mortar as the coating thickness to 1
Forming a thin coating layer (15) by directly applying a coating of 5 mm and rubbing so that the ground surface and the earth coating material are well blended with each other, as in the case described in FIG. Is.

Thus, by interposing the raw mortar between the existing structures such as floors and walls and the earth coating material, the earth thin coating method having a strong adhesiveness to all existing portions to be coated can be obtained. It can be applied, and a coating layer having high strength and high hardness can be formed to finish a dense and smooth surface.

The existing coating parts include concrete, laths, mortar, laths, earth walls, plaster walls, plaster walls, and other existing construction surfaces, as well as concrete panels, plywood boards, gypsum boards, plaster walls. Panels, boards, wallpaper, etc. can be used as the painted parts. Of course, the construction method according to this embodiment can be applied to existing structures such as indoor and outdoor floor surfaces, ceilings, and outer walls, in addition to the walls shown in FIG.

Therefore, with the soil thin coating method of the present invention, indoor and outdoor floors, which cannot be obtained by the conventional plastering method,
For all structures such as walls, it is possible to apply a thin coating that is integrated with the base made of a soil coating material whose main component is natural soil. Moreover, it is rich in strength and hardness comparable to concrete and earthenware, and is dense and smooth. It is possible to obtain a surface finish or a finish that is rich in design.

Also, by adding a material having an air purifying effect and a health promoting function, it is possible to develop a health building material.

This thin earth coating method can be applied to any structure indoors or outdoors. For example, starting with general housing, apartments, schools, hospitals, stores, libraries,
It can be used on indoor floors, walls and outer walls such as public halls, outdoor passages such as parks, poolside, and other facilities that require water resistance to rain and water. Can be painted.

[0054]

As described above, according to the soil thin coating method of the present invention, the soil coating material containing natural soil as the main component is integrated with the base such as concrete to obtain a strong adhesive property. In addition, the coating layer can provide a coating method having strength and hardness comparable to concrete or earthenware, water resistance and denseness and excellent durability.

Further, the coating layer can maintain the characteristics of natural soil and the characteristics of texture, and can utilize the humidity control function and the air purifying function of the concrete as the base. Furthermore, it is possible to provide a health building material in which a functional agent that enhances the air purification effect and the health promotion function is added to the soil coating material.

This thin earth coating method can be applied to all structures such as floors, passages, walls, ceilings, and walls inside and outside the building, and creates a living environment and aesthetics using natural soil in harmony with nature. In addition, the construction period is shortened and the coating cost is reduced.

[Brief description of drawings]

FIG. 1 is a schematic view of an example of floor construction according to an embodiment of the present invention.

FIG. 2 is a schematic view of a floor cross section of the above.

FIG. 3 is a schematic view of a wall construction example of another embodiment of the present invention.

[Explanation of symbols]

1 ... floor 2 ... Strata 3 …… Green concrete base 4 ... Earth paint 5: Paint layer 10 …… Existing concrete wall 12 …… The surface of the concrete wall 13 ... Raw mortar base 14 …… Soil coating material 15 ... Paint layer

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Claims (5)

[Claims] 1. A thin earth coating method for forming a coating layer by coating a soil coating material containing natural soil as a main component with an inorganic curing agent on the ground surface, wherein the soil coating material is the ground surface. A thin soil coating method wherein the coating layer after curing is directly applied with a thin trowel and maintains the properties of natural soil. 2. The soil thin coating method according to claim 1, wherein the soil coating material is applied by trowel coating before the base material of the base surface is cured. 3. The soil according to claim 1 or 2, wherein the raw mortar applied to the surface of the portion to be coated is used as a base surface, and the earth coating material is applied by trowel coating to the lower ground of the raw mortar. Thin coating method. 4. The inorganic compound, wherein the inorganic curing agent has one or more of an element belonging to at least one of an alkali metal, a carbon group, a nitrogen group, a halogen group and an iron group in the periodic table of elements. It is a mixture of at least one selected from a magnesium compound and a sulfur oxide, and water, or water glass, or water and water glass, and the mixture is added and kneaded to a soil material containing the natural soil as a main component. The earth coating material coating method according to any one of claims 1 to 3, wherein the earth coating material is applied to the base surface by trowel coating. 5. The soil according to any one of claims 1 to 4, wherein the soil coating material contains an electromagnetic radiation substance or a health-promoting inorganic substance such as diatomaceous earth, Hakushu soil, shells and zeolite. Thin coating method.