| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inorganic composition by which permeability is lowered, water repellency is raised, the elution of a silicate is suppressed and the basicity of pool water and flowing water on the surfaces of base materials is lowered in the cement base materials such as mortar, concrete and the like used for a flooring material, a nonflammable board, a tunnel internal plate, a bare-faced surface and the like. <P>SOLUTION: The specific inorganic composition is obtained by mixing at least an alkali metal silicate, an alkyl alkoxysilane and phosphoric acid or a phosphate with water as a surface protecting material for the cement base materials. The alkali metal silicate includes at least sodium silicate. <P>COPYRIGHT: (C)2012,JPO&INPIT |
