Curable composition and cured product comprising silica obtained by decomposing warm asbestos

摘要

The warm asbestos and the serpentine containing warm asbestos are processed to make the warm asbestos contained therein non-asbestos and are effective as an environmental measure as a useful material that can be safely recycled. SOLUTION: At least asbestos or serpentinite containing warm asbestos is acid-decomposed to substantially eliminate the influence of asbestos on the living body, and includes a porous fibrous amorphous silica and a reinforcing fiber. A curable composition characterized by the above. It is preferable that a surfactant, a thickening agent and / or a filler and / or a coloring agent are blended in the curable composition, and a pneumatic material and / or a hydraulic material and a thickening agent are blended. Contains 15 to 100% porous fibrous amorphous silica obtained by acid decomposition of warm asbestos or warm asbestos-containing serpentine, 0 to 75% slaked lime, 0 to 3% thickener, and 0 to 10% pulp It is preferred that