The effects of technological voids on the hydro-mechanical behaviour of compacted bentonite-sand mixture

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Laboratory investigation of the effect of cyclic wetting and drying on the behaviour of an expansive soil (2015, background): “Wang et al. (2013) studied the effect of voids on the hyro-mechanical behaviour of compacted bentonite–sand mixture through different suction controlled tests.”
Microstructural changes of an undisturbed, reconstituted and compacted high plasticity clay subjected to wetting and drying (2015, background): “…obtained from mercury intrusion porosimetry (MIP) have been shown to evolve as a result of hydraulic, mechanical and chemical changes (Delage & Lefebvre 1984; Delage et al. 1996; Romero et al. 1999; Simms & Yanful 2001; Koliji et al. 2006; Casini et al. 2012; Musso et al. 2013; Wang et al. 2013).”
Hydraulic conductivity and microstructure changes of compacted bentonite/sand mixture during hydration (2013, background): “The limited compaction by soil swelling pressure can be also explained by the fact that the compaction pressure applied for sample preparation was about 12 MPa, much higher than the soil swelling pressure estimated at 3 MPa at 1.67 Mg/m3 dry density (see Wang et al., 2013).”