DYNAMIC BEHAVIOR OF CEMENT MORTAR UNDER CONFINEMENT

The mechanical behavior of cement mortar are strongly affected by its stress state and loading conditions. Compressive experiments of the cement mortar using Split Hopkinson Bar under one-dimensional, passive confined and active confined conditions were carried out, and the stress-strain curves were obtained. The affects of the stress state, loading conditions and the strain rate on the mechanical behavior of cement mortar were also discussed. Finally, a failure criterion was developed to describe the plastic behavior of cement mortar.