On chemical degradation of properties of chalk

This paper is focused on the analysis of chemo-mechanical interaction in porous chalk and the resulting time-dependent behaviour. First, a constitutive relation is outlined for describing both the short and the long-term mechanical response in the presence of pore fluid. The approach is based on the chemo-plasticity framework developed in a recent work (Pietruszczak et al., 2006), whereby the properties of the material are assumed to be …