Abstract

Basic phenomena involved in crack generation during drying, and the ways to control or avoid it, are still elusive. Mechanisms of shrinkage and cracking are addressed, and especially the critical role in crack onset during drying of boundary constraints and induced tensile stresses. Two kinds of experimental tests were carried out on samples of fine-grained soil under controlled conditions: free desiccation tests and constrained desiccation tests. Measurements of strains, gravimetric water content and suction allow the drawing of some conclusions about the influence and the evolution of these tensile stresses during drying.

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Go to Unsaturated Soils 2006
Unsaturated Soils 2006
Pages: 1073 - 1084

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Published online: Apr 26, 2012

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Soil Mechanics Laboratory, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 18, CH-1015 Lausanne, Switzerland.E-mail: [email protected]
Soil Mechanics Laboratory, Ecole Polytechnique Fédérale de Lausanne (EPFL), Station 18, CH-1015 Lausanne, Switzerland. E-mail: [email protected]
Department of Civil and Environmental Engineering, Duke University, Durham, N.C. 27708. E-mail: [email protected]
Department of Civil and Environmental Engineering, Duke University, Durham, N.C. 27708. E-mail: [email protected]

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