Study on the effect of drying on cement-based materials

cement-based materials;  mechanical properties;  drying action;  Injuries;  elastoplasticity;  Coupling

After the cement-based material is cured and matured in a suitable environment, the excess free moisture inside it will continue to volatilize into the air, and the material will transition from a saturated state to an unsaturated state, and its mechanical properties will change accordingly. Firstly, the development of the main mechanical properties of cement-based materials in the drying process is studied through physical experiments, and then the damage-elastoplasticity-drying coupling model is established to describe the mechanical behavior of cement-based materials at different saturations. The comparison of the model calculation results with the experimental data shows that the established model can well reflect the changes of the mechanical properties of cement-based materials during the drying process.