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Swell index, oedopermeametric, filter press and rheometric tests for identifying the qualification of bentonites used in GCLs

Abstract : Geosynthetic clay liners (GCLs) are used in landfill liner applications and there is a need for a better control of the features of the bentonite in the GCL received on site, particularly in the European context where a wide variety of bentonites can be encountered. This paper presents the results of a project aiming at a rapid identification of the nature of the bentonite in a given GCL. The interaction between the bentonite and the fluid is increased by producing dispersions then testing its structuration in less than a few hours with filter press tests and flow curves. The results of those tests are intersected with swell index tests, electrical conductivity values and oedopermeametric tests.
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https://hal.archives-ouvertes.fr/hal-01913471
Contributor : Sandrine Rosin-Paumier <>
Submitted on : Tuesday, November 6, 2018 - 12:26:23 PM
Last modification on : Tuesday, March 30, 2021 - 3:23:26 AM
Long-term archiving on: : Thursday, February 7, 2019 - 2:38:25 PM

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S. Rosin-Paumier, N. Touze-Foltz, A. Pantet, P. Monnet, G. Didier, et al.. Swell index, oedopermeametric, filter press and rheometric tests for identifying the qualification of bentonites used in GCLs. Geosynthetics International, Thomas Telford, 2010, 17 (1), pp.1 - 11. ⟨10.1680/gein.2010.17.1.1⟩. ⟨hal-01913471⟩

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