A STUDY ON THE MIX DESIGN OF GEOMATERIALS MADE WITH MARINE CLAY, BENTONITE, SAND, AND ZEOLITE

Abstract

 Assuming that the removed soil containing radioactive cesium generated by the decontamination after the FDNPP accident is finally disposed of in an offshore disposal facility, we examined the permeability, cesium adsorption characteristics, compressibility and consolidation characteristics, regarding the mix design of the sealing geomaterial used for the bottom shielding of the facility. The incremental loading consolidation test examined the permeability, compressibility and consolidation characteristics, and the consolidation and seepage test examined the cesium adsorption characteristics. Bentonite, sand and zeolite were added to marine clay, and by examining each characteristic when they added individually, we showed the possibility to predict each characteristic in case of adding multiple materials.