| 摘要 |
PROBLEM TO BE SOLVED: To provide a method where a lightweight, porous sintered compact is produced by using chaff ash, which is disposed as unused wastes, as a raw material. SOLUTION: A raw material composition, which comprises chaff ash, inorganic aggregate, cement and water, is molded. Next, after being subjected to an aging process where hydration reaction of the cement proceeds, the molded body is burned at a high temperature so that the porous sintered compact is obtained. Silica rock or silicate is preferably used as the inorganic aggregate, and the burning temperature is preferably set at 800-1,500°C. COPYRIGHT: (C)2003,JPO
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