Predicting the evolution of mechanical and diffusivity properties of cement pastes and mortars for various hydration degrees - A numerical simulation investigation

► We present a multi-scale strategy to model the performances of cement-based materials. ► We present an investigation of the performances of these materials for various hydration degrees. ► The dependence of the performances with the capillary porosity is put into evidence. ► We use the modelling to develop some equations that can be used by non-modellers.