Article révisé par les pairs
Résumé : Clays used as engineered barriers in landfills need to contain hazardous waste during hundreds of years. When clays are exposed to landfill leachates alteration processes occur. These alteration processes can affect the long-term behaviour of the clay, depending on the clay mineralogy and the composition of the landfill leachate. Geotechnical tests have been performed to analyse these changes. Changes in permeability have been observed concurrently with changes in clay mineral composition.

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