Abstract：The triaxial compression test and hydrostatic compression test have been performed at first. Based on the experimental data, different mechanism of cement paste has been analyzed. According to thermodynamics theory, a new constitutive law is established and the damage criterion, two plastic mechanisms have been taken into account. This modelling considers also the influence of confining pressure. Numerical simulation shows that this constitutive law for cement-based materials can well explicit the main mechanical behavior at a large range of confining pressure state.
2011, Vol. 32 
