Impacts multi-échelles d'un échange (Mg, Ca)-Pb et ses conséquences sur l'augmentation de la perméabilité d'une bentonite.
Résumé
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).
Domaines
MinéralogieOrigine | Fichiers éditeurs autorisés sur une archive ouverte |
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