INORGANIC POWDER, ITS MANUFACTURING METHOD, INORGANIC HARDENABLE COMPOSITION, INORGANIC HARDENED BODY, ITS MANUFACTURING METHOD, GYPSUM-BASE HARDENED BODY AND CEMENT-BASE HARDENED BODY

摘要

PROBLEM TO BE SOLVED: To obtain an inorganic powder obtained by using an inorganic hardened body to be scrapped as the raw material, to provide its manufacturing method, to obtain an inorganic hardenable composition containing the inorganic powder and an inorganic hardened body obtained by hardening the composition, to provide its manufacturing method, and to produce a gypsum-base hardened body and a cement-base hardened body.;SOLUTION: An inorganic hardenable composition obtained by mixing metakaolin as an SiO2-Al2O reactive powder and an aqueous potassium silicate solution as an aqueous alkali silicate solution reacting with the metakaolin is hardened, the inorganic hardened body is crushed to manufacture an inorganic powder, the inorganic powder is added to the inorganic hardenable composition obtained by mixing the metakaolin with the aqueous potassium silicate solution, the admixture is filled in a die 1, a lid 2 is put on, and the admixture is heated and hardened to manufacture an inorganic hardened body 4b.;COPYRIGHT: (C)2001,JPO