EURAD - D7.1 Initial SotA on THM Behaviour of i) Buffer Clay Materials and of ii) Host Clay Materials

This report presents the main characteristics of the national concepts of the organizations involved in
EURAD‐WP7 HITEC (ANDRA, BGE, ENRESA, EURIDICE, NAGRA, POSIVA, RWM, SKB and SÚRAO) and
particularly of their thermal limits. An overview of what is known about the clay materials to be used in
the WP, both as buffer and as host rock, is given, including the effect of temperature on the materials’
behaviour. Large‐scale tests relevant in terms of the temperatures involved have been identified and
described, and they could be later used as benchmark exercises during the Project. The state of
modelling approaches is presented, mostly particularising their application to specific tests.