Abstract Summary
This article presents the work carried out by the CTU in Prague and ÚJV Řež as part of Task 2 of the GAS Work Package of the EURAD project. Since the Czech deep geological repository concept is considering the use of local bentonites, the research programme is focusing on Czech BCV bentonite and its benchmarking comparison with foreign materials such as MX-80 sodium bentonite. The laboratory testing programme involves the performance of gas breakthrough tests on water-saturated compacted bentonite samples. The key contribution of the research concerns the direct use of hydrogen as the gas injection medium.
