Building boards

Abstract

Traditionally, gypsum board has been the dominant material. As is well known, gypsum is a mineral whose main component is calcium sulfate (CaSO4). It has excellent fire resistance and sound insulation properties and has been widely used as a building material. However, because it is heavy, it is difficult to transport, and when disposed of in landfills or other locations, it generates high concentrations of hydrogen sulfide, making its disposal a social problem. [Solution] A building board made by pouring calcium carbonate between the cover and backing paper and forming it into a plate shape.

Description

Technical Field

[0001] The present invention relates to a building material that is lighter than conventional gypsum boards and can be safely disposed of.

Background Art

[0002] As a conventional technology, gypsum boards are the mainstream. As is well known, gypsum is a mineral mainly composed of calcium sulfate (CaSo4). It has excellent fire resistance and sound insulation properties and has been widely used as a building material. However, due to its weight, there are problems in carrying it. With the aging of workers in recent years, there is a demand for commercialization of lightweight boards. In addition, when disposed of in landfill sites, etc., it generates high-concentration hydrogen sulfide, and its disposal has become a social problem.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The above-mentioned conventional technology has problems particularly in terms of weight and generation of toxic gases due to disposal. The present invention uses calcium carbonate, which is the main component of chalk, and is lightweight and highly safe for use in food additives, cosmetics, etc.

Means for Solving the Problems

[0005] The present invention aims to solve the problems of such a conventional configuration. It is formed into a plate shape by pouring calcium carbonate between a front cover paper and a back cover paper. The building board is characterized in that the calcium carbonate is shells of shellfish or eggs.

Effects of the Invention

[0006] 1) By using calcium carbonate, which is lighter and safer instead of using conventional calcium sulfate, the transportation and workability at the site are improved, and the safety at the time of disposal is improved.

Modes for Carrying Out the Invention

[0007] Let me explain this building board. Calcium carbonate, the main component of seashells and eggshells, is mixed with water to create a muddy mixture, which is then sandwiched between the cover and backing paper and hardened into a sheet. Afterward, it is cut to the required size before use.

[0008] Examples of use for the above-mentioned building boards will be explained below. Basically, it has the same uses as conventional gypsum board, and is cut to the required dimensions at construction sites and other locations before use.

Claims

1. A building board made by pouring calcium carbonate between the cover and backing paper and then forming it into a sheet.

2. The building board according to claim 1, characterized in that the calcium carbonate is a seashell or an eggshell.