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Nouveau dispositif pour caractériser rapidement le retrait-gonflement des argiles

Abstract : Every year, the shrinkage and swelling of clays induce serious damages on housing structures. Their understanding and their quantifying constitute two important objectives to reduce damages. In this context, a new device was developed to characterise the shrinkage and swelling behaviour of clayey materials within an Environmental Scanning Electron Microscope (ESEM). It allows to determine the relationship between the volume variation of a micro-sample and its water content variation in a very short time (a day). Associated with an analytical model based on standard profiles of drought penetration in the soil, this new test allows to estimate the amplitude of settlement and/or swelling at the house scale.
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  • HAL Id : ineris-01869472, version 1



Jean-Bernard Kazmierczak, Tatiana Maison, Farid Laouafa, Patrice Delalain. Nouveau dispositif pour caractériser rapidement le retrait-gonflement des argiles. Rapport Scientifique INERIS, 2013, 2012-2013, pp.73-75. ⟨ineris-01869472⟩



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