4. Multiphysical Processes in Bentonite-Based Materials: Application to the EBS in Nuclear Waste Storage

Introduction: engineering application of bentonite-based materials
- Nuclear waste disposal
- Petroleum industry
- Geosynthetic clay liners
Laboratory testing and experimental evidence on bentonite behaviour
- Advanced testing facilities
- Mineralogy and fabric characteristics
- Hydro-mechanical (HM) behaviour
- Thermo-hydro-mechanical (THM) behaviour
- Chemo-hydro-mechanical (CHM) behaviour
Theoretical approach for THCM numerical modelling
- Formulation of balance equations
- Effective stress in geomaterials
- Stress – strain constitutive modelling
Laboratory scale modelling
Field scale modelling
- The FEBEX in-situ test in Grimsel Laboratory
- The Full-scale Emplacement at the Mont Terri Laboratory
Closure