1Technical Center, HANIL CEMENT Co.Ltd., 50 Daehwa-ro 52beonan-gil, Daedeok-gu, Daejeon, Korea
2Center for Carbon Mineralization, Korea Institute of Geosceinces and Mineral Resources (KIGAM), 124 Gwahagno, Yuseonggu, Daejeon, Korea
In this study has developed a low permeability of liner and cover material that can inhibit movement of metals and organic materials to prevent environmental problems from moving from abandoned mine fillings. The water content of liner and cover material was found to increase as the specific surface area of the raw material was smaller and it was found that the drying shrinkage strain was affected by the increase of the mixed water content. Compressive strength was interpreted as the effect of water strength and the intensity of C-S-H and C-S-A produced by hydration reaction on the constituents of liner and cover material. The permeability coefficient was found to be lower as the compressive strength was larger.
