A constitutive framework for the chemo-mechanical behaviour of unsaturated non-expansive clays

Both osmotic and matric suction changes have a significant influence on the mechanical behaviour of clays. Despite different types interactions at microstructural level, both suctions havea relevant effect fabric non-expansive Starting from experimental observations laboratory scale, it is possible to identify some common features characterizing response clays salinity degree saturation changes. This paper presents an elastoplasticframework reproduce unsaturated clayey soils upon in salt concentration pore fluid. In particular, strategy include induced by fluid BBM-like models [1]. The model was implemented Thebes code calibrated data performed Boom clay [2] remoulded loess [3].