Abstract Summary
The present study arises from the need of investigating the THM behaviour of one of Belgium’s potential host rock formations for deep geological disposal of radioactive waste. To the author’s knowledge, the study of the evolution of radial stresses during drained thermal paths under oedometer conditions has never been addressed. Such information would allow for drawing a better defined stress state while accurately measuring volume changes. The present study used a newly designed and fully instrumented oedometer cell. The results indicated a systematic increase in the radial effective stress on heating at constant vertical effective stress.
