Chapter
Jun 20, 2018
Effect of Suction on the Poisson’s Ratio of Claystones
Authors: J. M. Espitia [email protected], B. Caicedo [email protected], and L. Vallejo [email protected]Author Affiliations
Publication: PanAm Unsaturated Soils 2017
Abstract
An experimental investigation to analyze the effect of suction on the Poisson’s ratio of claystone is presented. For this, the vapor transfer technique is used to impose suction on rock specimens. To evaluate the mechanical behavior of the claystone, two conditioned specimens are tested at each suction value through uniaxial compressive tests. Axial and radial strains are analyzed using the moving point regression technique. Axial and radial stiffness increase with suction and exhibit a non-linear behavior during the loading process. Poisson’s ratio was found to decrease with suction and to evolve in a non-linear manner during loading.
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Published In
PanAm Unsaturated Soils 2017
Pages: 38 - 46
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Jun 20, 2018
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Affiliations
Mining Engineering Dept., Universidad Pedagogica y Tecnologica de Colombia, Sogamoso, Colombia. E-mail: [email protected]
Dept. of Civil and Environmental Engineering, Universidad de Los Andes, Bogotá, Colombia. E-mail: [email protected]
Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, Pittsburgh, PA 15260. E-mail: [email protected]
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