JP2001089222A - Plastered wall material and method for applying same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a plastered wall material capable of easily forming a good coated surface free from ruggedness and not causing cracking and dew condensation phenomenon after application and to apply the plastered wall material in such a way that it does not peel or fall off even after the lapse of a long period of time after application. SOLUTION: Powdery diatomaceous earth is mixed with proper quantities of cement and hide glue and the mixture is used as the objective plastered wall material. When the mixture is further mixed with a proper quantity of porous fine sand if necessary, the appliability and hygroscopicity are enhanced. White Portland cement is suitable for use as the cement and is optionally mixed with a proper quantity of silica sand. Fine sand is applied on the substrate of a plastered wall with a liquid adhesive and the plastered wall material is applied on the fine sand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating material mainly composed of diatomaceous earth in powder form and a coating method therefor.

[0002]

2. Description of the Related Art Diatomaceous earth has been used for a long time as a coating material, kneaded with an appropriate amount of clay and water, and applied to a wall foundation using a trowel or the like.

However, since the diatomaceous earth-coated wall is easily trapped by air at the time of application and it is difficult for the air once trapped to be diffused out of the painted surface, it is necessary to finish the surface with a smooth painted surface without unevenness. Has never been easier for a skilled plasterer. Further, diatomaceous earth-coated walls are generally prominently cracked even immediately after curing, and since the adhesion to the wall foundation is not sufficient, the phenomenon of detachment of the wall after construction is not uncommon. In addition, since the conventional diatomaceous earth walls do not have good coating properties as they are, resin-based adhesives are often mixed, so the original feature of water absorption is sacrificed, and the amount of water absorption becomes extremely small. Dew condensation often occurs due to temperature differences even in a humid environment.

The present invention has been made to eliminate such drawbacks of the conventional diatomaceous earth-coated wall, and an object of the present invention is to enable a general person to easily apply and construct a good coated surface without unevenness. Moreover, it is an object of the present invention to provide a coated wall material which does not cause cracking or dew condensation after the application, and to provide a method for applying the coated wall material which does not peel off even after a long period of time since the application.

[0005]

According to the present invention, there is provided a coated wall material comprising a powdery diatomaceous earth mixed with an appropriate amount of cement and glue. The mixed cement and glue function as a strong linking material for the diatomaceous earth particles, and hardly cause drying shrinkage, so that cracks after application can be prevented. In addition, both cement and glue hardly inhibit the water absorption of diatomaceous earth, and can make use of the original good hygroscopicity of diatomaceous earth as it is, thereby forming a coated wall free of dew condensation. In order to increase the hardness of the coated wall, it is preferable to slightly increase the mixing ratio of glue. If necessary, an appropriate amount of porous fine sand may be mixed into the painted wall material, so that the air trapped in the painted surface of the painted wall material at the time of application of the coating material passes out of the painted surface through the porous fine sand. It is possible to prevent the unevenness from being generated on the coated surface by being quickly diffused, and to form a coated wall having more excellent dew condensation resistance because the porous fine sand further promotes water absorption. . For normal use, a combination of powdery white diatomaceous earth, white Portland cement and glue is suitable, and an appropriate amount of silica sand may be mixed if necessary. In addition, in the case of construction in a cold region, an appropriate amount of an antifreezing agent or a quick-drying agent may be mixed as necessary.

Further, the method for applying a coated wall according to the present invention is characterized in that fine sand is applied to a base using a liquid adhesive, and the coated wall material is applied on the fine sand. By applying the coating material through fine sand instead of directly applying the coating material to the base in this way, the unevenness of the surface of the fine sand layer becomes a strong anchor of the coating wall material and prevents peeling and falling off after coating application. It is possible,
In particular, metal surfaces that could not be applied per se before,
Strong adhesion can be obtained even on a ground surface having a high degree of smoothness, such as a ceramic surface or a glass surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

[0008] The coating material according to the present invention comprises a powdery white diatomaceous earth as a main component and a suitable amount of white Portland cement and glue. As the white Portland cement, “White Cement” manufactured by Toyo Materan Co., Ltd. can be suitably used, but another equivalent cement material may be used instead of this “White Cement”. Also, silica sand or a very small amount of adhesive may be mixed with cement. There is no particular problem with the type of diatomaceous earth, and white or brown powdered diatomaceous earth can be used according to the color of the painted wall, or various colored pigments other than white can be used by mixing and using various pigments with powdered white diatomaceous earth. May be formed. Further, fine sand can be mixed with the painted wall material as required for ease of application and construction. As the fine sand, porous fine sand is suitable, and for example, fine sand of flowable natural glass is preferable. By mixing such porous fine sand, when the coating material is kneaded with water and applied by a trowel, the air that has been caught in the coating material goes out of the coating surface through the porous fine sand. It is quickly dissipated, so that even ordinary people can finish a good coated surface without unevenness.

Next, an example of a method for coating the above-mentioned coated wall material will be described with reference to FIGS. 1 (A) to 1 (C). First, FIG.
As shown in FIG. 1A, a liquid adhesive 2 is applied to a coating wall base 1 using a liquid nozzle 3 or a brush. Base 1 in this case
Is a plywood, gypsum board, concrete panel, etc., which are typically used as building wall panel materials,
The coated wall material of the present invention is not limited to these bases, and can be applied to the inner wall of a marine transport container or a metal surface such as an aluminum sash. Here, as the liquid adhesive 2, "Euroid" (trade name) manufactured by Mitsubishi Chemical Corporation is suitable. This "Euroid" is, for example, one that has been widely used as an adhesive for fittings and is easily available. Since it has a suitable viscosity, there is no dripping even when it is applied to an upright wall, it can be applied uniformly, and it is very resistant to water. As the liquid adhesive, for example, a resin-based adhesive may be used, but an adhesive having an optimum viscosity according to the state of the application surface such as an upright wall is used.

After the liquid adhesive 2 is applied, fine sand 4 is uniformly sprayed from the air nozzle 6 toward the adhesive-coated base 1 as shown in FIG. The fine sand 4 is used to improve the sticking of the coating wall material 5 in the next step, and the coating wall material 5 is firmly fixed to the base 1 by a so-called anchor effect due to the unevenness of the fine sand 4. . The spray thickness of the fine sand 4 is such that the fine sand 4 projects from the surface of the liquid adhesive 2 at a predetermined height.

After the liquid adhesive 2 has been properly dried, finally, the coating material 5 of the present invention is kneaded with a predetermined amount of water from the fine sand 4 as shown in FIG. It is applied with a predetermined thickness using a trowel or the like and dried to complete the application of the coating wall.

FIG. 2 shows a comparison of the water absorption of the diatomaceous earth coating thus applied with the conventional diatomaceous earth wall.
It is. As shown in the figure, the conventional diatomaceous earth wall had a water absorption rate of at most about 8% by volume ratio, but the diatomaceous earth wall of the present invention obtained a water absorption rate as high as about 75% by volume ratio. In addition, a large difference in the water absorption rate was confirmed, in which the water absorption effect was almost instantaneously terminated in the diatomaceous earth wall of the present invention, whereas 8% water absorption was completed only in a few minutes in the conventional diatomite wall.

[0013] Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications are possible. In addition, it can be applied to wall surfaces where dew condensation is not desirable, such as walls of concrete foundations under floors of wooden buildings, indoor side walls of houses and office aluminum sashes, and metal surfaces of inner walls of marine transport containers.

[0014]

As described above, the coated wall material of the present invention is obtained by mixing a suitable amount of cement and glue with powdered diatomaceous earth, and the mixed cement and glue function as a strong linking material for diatomaceous earth particles, and In addition, since drying shrinkage hardly occurs, cracking after application can be prevented. Neither cement nor glue inhibits the inherent good water absorption of diatomaceous earth, so that it is possible to form a painted wall free from dew condensation. Furthermore, when an appropriate amount of porous fine sand is mixed with the coated wall material, the air that has caught in the coated surface of the coated wall material in the coating operation is quickly diffused out of the coated surface through the porous fine sand. Uneven unevenness can be prevented from being formed on the painted surface, and the porous fine sand further promotes water absorption, so that a painted wall having more excellent dew condensation can be formed. In addition, the coating material of the present invention is made of diatomaceous earth as a main component, and thus has heat insulation, fire resistance, sound insulation,
It is excellent in sound absorption and the like, and can also be expected to have an effect of adsorbing and decomposing harmful gases due to the porous structure.

In the method for applying a coating material according to the present invention, fine sand is applied and fixed to the base using a liquid adhesive, and then the coating material is applied. It can serve as a strong anchor for wall materials to prevent peeling and falling off after coating, especially when metal surfaces, pottery surfaces, glass surfaces, etc., which could not be applied by themselves, have high smoothness. Even on the ground, a strong fixing force can be obtained by the method for applying a coating material of the present invention.

[Brief description of the drawings]

1 (A) to 1 (C) are views showing steps of a method for applying a coated wall material of the present invention, and FIGS. 1 (D) and 1 (E) are partially enlarged sectional views of (B) and (C).

FIG. 2 is a bar graph showing the water absorption of a diatomaceous earth wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Liquid adhesive 3 Liquid nozzle 4 Fine sand 5 Painted wall material 6 Air nozzle

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C04B 14:08) C04B 14:08) 111: 28 111: 28 111: 52 111: 52 F-term (Reference) 4D075 AA02 AC57 CA13 DA40 DB02 DB12 DB13 DB14 DB22 DC02 EA02 EB03 EB07 EB60 4G012 PA04 PA05 PB03 PB11 PB37 PC14 PD01 PE01

Claims (4)

[Claims] 1. A coated wall material comprising a powdery diatomaceous earth mixed with an appropriate amount of cement and glue. 2. A coated wall material comprising a powdery white diatomaceous earth mixed with white Portland cement and an appropriate amount of glue. 3. The method according to claim 1, wherein a suitable amount of porous fine sand is mixed.
Or the coated wall material according to 2. 4. A coating wall comprising applying and fixing fine sand to a base using a liquid adhesive, and applying the coating material according to any one of claims 1 to 3 on said fine sand. How to apply the material.