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Impacts multi-échelles d'un échange (Mg, Ca)-Pb et ses conséquences sur l'augmentation de la perméabilité d'une bentonite.

Abstract : The article addresses the structural effects of solutions of lead nitrate on a suspended or compacted bentonite. A permeability increase is observed on compacted clay. Investigating the composition of output solution, using X-Rays Diffusion at Small Angles and Scanning Electron Microscopy, this permeability increase is explained from structural variations at nanometric (reduction of particle size) and micrometric scales (microfissuration of aggregates).
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Nevila Jozja, Patrick Baillif, Jean-Claude Touray, Charles-Henri Pons, Fabrice Muller, et al.. Impacts multi-échelles d'un échange (Mg, Ca)-Pb et ses conséquences sur l'augmentation de la perméabilité d'une bentonite.. Comptes Rendus Géoscience, Elsevier Masson, 2003, 335, pp.729-736. ⟨10.1016/S1631-0713(03)00129-9⟩. ⟨hal-00069451⟩

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