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<title lang=en>Experimental study of the relation between the permeability of kaolinite and its deformation at micro and macro scale</title>
<creator>Raynaud, Suzanne</creator>
<creator>Vasseur, Guy</creator>
<creator>Celerier, Bernard</creator>
<creator>Loggia, Didier</creator>
<creator>Ghoreychi, Medhi</creator>
<creator>Mathon, Marie Helene</creator>
<creator>Mazerolle, Frédéric</creator>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Structure et fonctionnement des systèmes hydriques continentaux (SISYPHE) ; Université Pierre et Marie Curie - Paris 6 (UPMC) - École pratique des hautes études (EPHE) - MINES ParisTech - École nationale supérieure des mines de Paris - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Institut National de l'Environnement Industriel et des Risques (INERIS)</contributor>
<contributor>Laboratoire Léon Brillouin (LLB - UMR 12) ; Commissariat à l'énergie atomique et aux énergies alternatives (CEA) - Université Paris-Saclay - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire de Mécanique et d'Acoustique [Marseille] (LMA ) ; Ecole Centrale de Marseille (ECM) - Aix Marseille Université (AMU) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<source>International Journal of Rock Mechanics and Mining Science</source>
<identifier>hal-00496407</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00496407</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00496407</source>
<source>International Journal of Rock Mechanics and Mining Science, 2010, 47 (4), pp.559-567. 〈10.1016/j.ijrmms.2010.04.007〉</source>
<identifier>DOI : 10.1016/j.ijrmms.2010.04.007</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijrmms.2010.04.007</relation>
<language>en</language>
<subject lang=en>Kaolinite</subject>
<subject lang=en>Permeability</subject>
<subject lang=en>Triaxial tests</subject>
<subject lang=en>CT X-ray</subject>
<subject lang=en>SEM</subject>
<subject lang=en>Fabric</subject>
<subject>[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]</subject>
<subject>[PHYS.PHYS.PHYS-GEO-PH] Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>We present an experimental study of relations between hydraulic properties of clayey rocks and their deformation at bulk and micro scale. The experimentation is based on triaxial deformation of kaolinitic core samples, on permeability measurements, and on several methods of analysis of the microstructure. To produce the samples, remoulded kaolinite material is consolidated by axial loading up to 20 MPa in an oedometric cell. Then, in a triaxial cell, an undrained stress path is applied in order to induce shearing damage in the sample. The permeability of the sample is measured by fluid flow across the sample. Before and after these hydro-mechanical tests, the evolution and the homogeneity of the pore space and moreover the texture of the material are analysed by X-ray tomography, environmental scanning electron microscopy and thermic neutron diffraction. Contrary to expectations, the permeability at the sample scale does not vary significantly, although quite large deformation is reached. The final deformation is heterogeneous, with well-developed shear bands. It appears that the development of compacting and dilating zones generates a heterogeneous permeability field, which results in a negligible variation of the bulk permeability at the sample scale.</description>
<date>2010</date>
</dc>
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