METHOD FOR MANUFACTURING EARTH AND SAND ALTERNATIVE MATERIAL USING ORGANIC SLUDGE AS MAIN RAW MATERI

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PROBLEM TO BE SOLVED : To provide a method for manufacturing an earth and sand alternative material using organic sludge as a main raw material which has a strength as an earth and sand alternative material, comparable with a natural material, satisfies a profitable manufacturing cost, and prevents the elution of hazardous substances such as heavy metals. SOLUTION : In the method for manufacturing an earth and sand alternative material, at lease one adjuvant among sandy molten slag, concrete debris, glass, recycled material of crushed earthenware, silty coal ash, and gypsum is mixed with the organic sludge, and then a cement-based solidification agent and an elution inhibitor made by chelate bonding an iron salt with a protein hydrolysate are added to perform solidification. COPYRIGHT : (C)2008, JPO&INPIT