Abstract
This paper presents the influence of the unsaturated state (suction) and especially the different hydraulic behaviour during the wetting and drying cycles (hysteresis phenomenon) on the resilient behavior, of unbound granular materials for roads. First, the Soil Water Retention Curve (SWRC) of a compacted clayey sand will be obtained for both wetting and drying paths. These experimental results were then completed by a series of repeated load triaxial tests at a range of water content between 8% and 11% on both wetting and drying paths. Finally, the experimental results were simulated using the modified Boyce model. Generally, it can be stated that the hydraulic hysteresis phenomenon plays an important role on the mechanical modelling of the resilient behaviour.
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Ho, X.N., Nowamooz, H., Chazallon, C., Migault, B. (2013). Influence of Hydraulic Hysteresis on the Resilient Behavior of a Natural Compacted Sand. In: Laloui, L., Ferrari, A. (eds) Multiphysical Testing of Soils and Shales. Springer Series in Geomechanics and Geoengineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-32492-5_7
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DOI: https://doi.org/10.1007/978-3-642-32492-5_7
Publisher Name: Springer, Berlin, Heidelberg
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