POROUS CONCRETE AND CONCRETE, AND POROUS CONCRETE SECONDARY PRODUCT AND CONCRETE SECONDARY PRODUCT OBTAINED BY USING BURNT COMPACTED MATTER WITH SLUDGE AS RAW MATERIAL

摘要

PPROBLEM TO BE SOLVED: To attain the effective utilization of sludge incineration ash on a mass scale whose disposal has been a problem by imparting functions thereto, and to allow the same to contribute to the construction of circulation type society. PSOLUTION: The incineration ash of sludge and a coagulating agent are kneaded, granulated, and thereafter burnt so as to be a solidified matter. The concrete, porous concrete, concrete secondary product and porous concrete secondary product are produced by using the sludge burnt solidified matter as a part of the raw material. Thus, new functions are imparted thereto, and further, the mass consumption and effective utilization of the sludge are made possible. PCOPYRIGHT: (C)2004,JPO