Cement – Clay Synthesis of Transport Across the Cement-Clay Interface
Prasianakis, N.I., Kosakowski, G., Gimmi, T., Luraschi, P., Miron, G.D., Pfingsten, W. & Churakov, S.V. (2022): Cement - Clay : Synthesis of transport across the cement-clay interface. Nagra Arbeitsbericht NAB 22-34.
pdf NAB 22-34 Cement – Clay Synthesis of Transport Across the Cement-Clay Interface(18.41 MB)
This report provides a state-of-the-art review of the current experimental and theoretical knowledge about cement/clay interaction. Chapter 2 provides the structural summary and overview of the cement/clay interaction processes and their relevance for the performance of the multi-barrier repository design and the repository in situ conditions. Chapter 3 provides a review of the experimental findings in the studies of cement/clay interactions, which are conducted at laboratory and field scales. Chapter 4 reviews the state of the art of numerical modelling techniques, and the concepts applied to model the experimental observations and to evaluate the expected long-term evolution of the interface zone, beyond the experimentally accessible timescale. Finally, the most important conclusions about the evolution of the cement-clay interface are summarized in Chapter 5.