JPH04254448A - Composition for finishing material and building material formed by using this composition - Google Patents

Abstract

PURPOSE:To obtain the compsn. for finishing materials having excellent hygroscopicity, sound insulating property, incombustibility and impact absorptivity by using calcined matter formed by pelletizing or molding diatomaceous earth and/or clay and calcining the molding, cement and bonding agent. CONSTITUTION:The pellets formed by adding water to the diatomaceous earth and/or clay, kneading the mixture and extrusion molding the mixture or pelletizing the mixture by using a pelletizer of a falling system, etc., are calcined for 15 to 60 minutes at 900 to 1100 deg.C to obtain the calcined matter having 0.5 to 8mm grain size in the case of grains and 0.5 to 5mm diameter and 2 to 10mm length in the case of circular cylindrical bodies. A coloring agent, filler and reinforcing material are added at need to 100 pts.wt. (hereafter abbreviated as pts.) compsn. consisting of 100 pts. such calcined matter, 5 to 20 pts. cement (e.g. Portland cement) and 5 to 20 pts. bonding agent (e.g. calcium carbonate) and the mixture is kneaded under addition of 5 to 20 pts. water thereto. This compsn. is applied as the finishing material directly on walls or floors or is used by being worked to building material. The sp. gr. of the resulted finishing material or building material is 0.6 to 0.8.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finishing composition and a building material using the same. For more details, see moisture permeability,
It has excellent sound absorption and non-combustibility, and when used as a flooring material, it has shock absorption properties even when an object is dropped. The present invention relates to a composition for a finishing material, which can produce a finishing material that hardly bounces due to its excellent properties (as described above) and causes almost no noise to the downstairs area, and a building material using the same.

0002

BACKGROUND OF THE INVENTION Conventionally, tiles, artificial stones, terrazzo, and the like have been widely used as finishing materials for walls and floors of buildings such as offices and residences. These finishing materials have characteristics such as excellent waterproofness, water resistance, and stain resistance, but on the other hand, they have a problem of poor sound absorption and moisture permeability because of their dense surface structures.

[0003] Also, in recent years, noise from above floors has become a problem in buildings and condominiums, but this is mainly due to the impact from walking or dropping objects that travels through the floor and appears as noise downstairs. .

[0004] As a result of various studies aimed at improving the drawbacks of conventional finishing materials as described above, the present inventor has developed a fired product obtained by granulating or molding diatomaceous earth or clay and firing it. When finishing walls or floors using a composition consisting of cement and adhesive, or when using a building material of an appropriate shape manufactured using the composition as a finishing material, moisture permeability and sound absorption properties are required. They have discovered that it is possible to create a finish with excellent nonflammability and shock absorption properties, and have completed the present invention.

[0005]

[Means for Solving the Problems] The finishing material composition of the present invention comprises a fired product obtained by granulating or molding diatomaceous earth or clay and firing it, cement, and a glue agent. It is a feature.

[0006]

[Example] The fired product of the present invention is obtained by adding water to diatomaceous earth or clay, kneading it, extruding it, or granulating it using a granulator such as a drop type granulator, and then firing the product. . The size of the fired product is not particularly limited in the present invention, but in the case of granules, it is usually 0.5 to 8 mm (
particle size), and in the case of cylindrical bodies, the diameter is 0.5 to 5 mm.
The length is 2 to 10 mm.

[0007] Firing is carried out using, for example, an electric furnace, and although the firing temperature and firing time are not particularly limited in the present invention, they are usually 900 to 1100°C and 15 to 60 minutes, respectively. Diatomaceous earth and clay can be used alone or in combination.

As the cement, commonly used cements such as Portland cement, blast furnace cement, silica cement, and fly ash cement can be used, but it is usually preferable to use Portland cement because it is easily available.

[0009] As the adhesive agent, a binder that takes on a paste-like form in the presence of water and hardens by reacting with cement or the like, particularly an inorganic binder such as calcium carbonate or silica powder, can be used. Specifically, M.R-7 (trade name, calcium carbonate-based waterproof admixture manufactured by Toyo Mokuzai Co., Ltd.) and the like can be suitably used.

[0010] The mixing ratio of the above-mentioned fired product, cement, and glue is usually 5 to 20 parts by weight of cement and 5 to 20 parts by weight of glue per 100 parts by weight of the fired product. Among these, the preferred blending ratio is 8 to 12 parts by weight of cement and 8 to 12 parts by weight of glue to 100 parts by weight of the fired product.

[0011] If desired, the composition may contain colorants such as pigments, fillers and reinforcing materials such as carbon fibers, natural or synthetic fibers, sand, glass powder or glass fibers.

[0012] Furthermore, as the fired product, one obtained from diatomaceous earth and one obtained from clay can be used alone, or a mixture of the two can be used. Furthermore, a fired product obtained from a mixture of diatomaceous earth and clay can be used alone or in combination with other fired products.

The composition of the present invention is kneaded with water before use. The amount of water added is usually 5 to 20 parts by weight per 100 parts by weight of the composition. When water is added and kneaded and left for a while, it gradually hardens, which is thought to be due to the reaction between the cement and the adhesive. In this way, the finished material is formed by using the fired product as a core and bonding the cement and adhesive to the core.

The composition of the present invention can be kneaded after adding water, and the resulting kneaded product can be applied directly to walls or floors as a finishing material; It can also be used to make building materials by pouring it into the interior and subjecting it to finishing, rolling, drying, etc. Drying is 15-6
Natural drying for about 0 minutes is preferable, but drying by heating or the like may be used. The resulting building materials are attached to walls and floors using common adhesives such as cement mortar and polymer adhesives.

Finishing materials or building materials using the composition of the present invention have excellent moisture permeability, sound absorption, nonflammability and shock absorption properties. This is because the fired product constituting the finishing material or building material has a porous structure with many fine pores. For this reason, the specific gravity of the finishing material or building material obtained is extremely light, ranging from 0.6 to 0.8.

[0016]

Effects of the Invention As explained above, the composition of the present invention contains a fired product obtained by granulating or molding diatomaceous earth or clay and firing it as a main component, and the composition has a fired product having such a porous structure. Finishing materials or building materials using compositions containing this composition have excellent moisture permeability, sound absorption, nonflammability, and shock absorption.

Claims (6)

[Claims] 1. A finishing material composition comprising a fired product obtained by granulating or molding diatomaceous earth or clay and firing it, cement, and a glue agent. 2. A finishing material composition comprising a fired product obtained by granulating or molding a mixture of diatomaceous earth and clay and firing, cement, and a glue agent. 3. The finishing material composition according to claim 1, wherein the blending ratio is 5 to 20 parts by weight of cement and 5 to 20 parts by weight of adhesive per 100 parts by weight of the fired product. 4. The finishing material composition according to claim 1, further comprising a coloring agent. 5. A building material obtained by adding water to the composition according to claim 1 and kneading the mixture, pouring the mixture into a suitable mold, and drying the mixture. 6. A building material obtained by adding water to the composition according to claim 2, kneading it, pouring it into a suitable mold, and drying it.