| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing with a technique with small environmental loading a porous granular body having the quality of a gardening material, a construction material, a soil improvement material, or the like. SOLUTION: This method for producing the porous granular body comprises using as the raw material inorganic waste such as molding sand dust, crushed stone sludge, construction sludge, water supply sludge and coal ash, adding a lime raw material and water thereto, producing a kneaded product of a funicular I and II state to a capillary state by medium speed kneading, and forming the product by vibration if necessary and subjecting the product to a hydrothermal treatment, and further to a crushing treatment and a classification treatment if necessary. COPYRIGHT: (C)2003,JPO |
