Interactions between the Materials for Radwaste Disposal System and Groundwater under Geological Disposal Conditions

Abstract

The paper describes briefly the performance and alteration of various materials used in the engineered barrier system of radioactive waste disposal and rock as natural barrier due to interactions with the groundwater. Cementitious materials, borosilicate glass, metals like stainless steel and Zircaloy, bentonite clay and rock are focused on among candidate materials of the engineered barrier. Studies on long-term alteration of the materials and its effects on the important parameters defining the performance of the materials are surveyed and reviewed.