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Swelling pressure of a divalent-rich bentonite: Diffuse double-layer theory revisited

This paper stems from collaboration with Bauhaus-University Weimar, Germany, funded by Bundesministerium fϋr Bildung und Forschung, Germany. It presents the experimental swelling pressure results of compacted bentonites in the context of deep geological disposal of nuclear wastes. The theoretical work was implemented in numerical models developed at Lawrence Berkeley National Laboratory (LBNL), University of California, and for assessing Thermal-Hydrologic-Mechanical-Chemical behaviour of bentonites as barrier and backfilling materials for the storage of radioactive waste in the USA. The paper was included in a technical report produced for the US Department of Energy by LBNL (escholarship.org/uc/item/015841zk).