GRANULAR BENTONITE IMPERVIOUS MATERIAL, IMPERVIOUS STRUCTURE, AND ITS CONSTRUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide bentonite which generates little powder in disposing waste in the underground, and is easily consolidated, and to provide an impervious structure having high dry density and excellent water stop property after the consolidation.;SOLUTION: The granular bentonite for hardly permeable structure is prepared to have a plastic limit of 10-35% and a particle size of 20 mm or smaller. The impervious structure is prepared to have a hydraulic conductivity of 10^-8 cm/sec. order or lower.;COPYRIGHT: (C)2005,JPO&NCIPI