ABSTRACT
The water retention curve (WRC) can be defined as the relationship between the amount of water in a porous material and its matrix suction. It is related to properties such as, pore size distribution, unsaturated volume change, unsaturated shear strength, and unsaturated permeability (Nimmo 2004, Thu et al., 2007, Vanapalli et al., 1996, Romero et al., 1999).
