The lightweight mortar and the solidification mannered null hydraulic property cement of the radioactive waste which

摘要

PROBLEM TO BE SOLVED: To provide light weight mortal wherein satisfactory fluidity can be maintained for a long time and which is excellent in packing properties, low in specific gravity and excellent in strength and the like of the solidified material thereby and to provide a solidifying method for a radioactive waste by which a waste body can be made light in weight.;SOLUTION: The light weight mortal is used, consisting of water-hardenable cement, light weight aggregate, a dispersing agent, a separation suppressing agent, a weight lightening promoter and water and characterized in that the light weight aggregate is formed by mixing an igneous rock calcined material and an obsidian calcined material.;COPYRIGHT: (C)2003,JPO