Assessing the durability of nuclear glass with respect to silica controlling processes in a clayey underground disposal

Stéphanie Leclerc (1) , Laurent de Windt (2) , Stéphanie Leclercq , Jan van Der Lee (2, 3)

1 EDF R&D - EDF R&D
2 GEOSCIENCES - Centre de Géosciences
3 CNRSSP - Centre National de Recherche sur les Sites et Sols Pollués

The long-term behaviour of vitrified high-level waste in an underground clay repository was assessed by using the reactive transport model HYTEC with respect to silica diffusion, sorption and precipitation processes. Special attention was given to the chemical interactions between glass, corroded steel and the host-rock considering realistic time scale and repository design. A

Domaines: Géochimie; Milieux et Changements globaux

Stéphanie Leclerc, Laurent de Windt, Stéphanie Leclercq, Jan van Der Lee. Assessing the durability of nuclear glass with respect to silica controlling processes in a clayey underground disposal. Scientific Basis for Nuclear Waste Management, 2006, Ghent, Belgium. pp.313-320. ⟨hal-00596569⟩