PRODUCTION OF LIGHTWEIGHT INORGANIC PRODUCT

摘要

PURPOSE:To produce a lightweight inorg. product having a non-asbestos compsn. and excellent in practical strength and suitability to nailing by extrusion molding. CONSTITUTION:The molar ratio of CaO to SiO2 contained in a mixture contg. cement, diatomaceous earth, pulp and water as essential components is regulated to 0.7-1.2, the diatomaceous earth content is regulated to 25-35wt.% and the weight ratio of the pulp to the diatomaceous earth is regulated to 0.2-0.3. The resulting mixture is kneaded and extrusion-molded as usual and calcium silicate hydrate is formed by treatment in an autoclave.