PRODUCTION PROCESS OF CARBONATE HARDENED BODY

摘要

PROBLEM TO BE SOLVED: To provide a carbonate hardened body production process for producing a carbonate formed body having sufficient material strength by forming a calcareous raw material and a siliceous raw material into a formed body and subjecting the formed body to carbonation to promote the carbonization to the inside of the formed body. SOLUTION: This process comprises forming a grainy powder in which a calcareous material and a siliceous material coexist into a formed body, and curing the formed body in the presence of gaseous carbon dioxide to form calcium carbonate within the formed body and to harden the formed body. The grainy powder, before formed into a formed body, is subjected to pulverization treatment causing a mechanochemical reaction in the powder.