@inproceedings{a6f003ea82b448fba15e6e5052183236,
title = "A microstructure-based constitutive model for the hydro-mechanical coupling in compacted clay/sand mixtures",
abstract = "In order to describe the hydro-mechanical behaviour of compacted expansive clay, in the present work, a microstructure-based constitutive model was elaborated based on the following assumptions: (i) the soil porosity can be divided into two levels: microstructural and macrostructural levels; (ii) the plastic deformation correspond to the collapse of the mac-rostructural porosity. The parameters of the model were calibrated using results from suction-controlled oedometer tests performed on a compacted clay/sand mixture. These parameters were then used to simulate the swelling pressure generated when wetting the soil mixture under constant-volume conditions. Comparison between the modelling and the experimental results showed that the model satisfactorily reproduced the relationships between the suction and the generated swelling pressure, as well as the changes in volumetric water content.",
keywords = "Clay/sand mixtures, Constitutive model, Hydro-mechanical couplings, Microstructure",
author = "Cui, \{Yu Jun\} and Tang, \{Anh Minh\} and Cyril Loiseau and Pierre Delage",
year = "2011",
month = dec,
day = "1",
language = "English",
isbn = "9780415612975",
series = "Geomechanics and Geotechnics: From Micro to Macro - Proceedings of the International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010",
pages = "23--27",
booktitle = "Geomechanics and Geotechnics",
note = "International Symposium on Geomechanics and Geotechnics: From Micro to Macro, IS-Shanghai 2010 ; Conference date: 10-10-2010 Through 12-10-2010",
}