And also considered two cases of the concrete Poisson's ratio: remaining unchanged during the loading process and changed at the later stage of the loading.

The relationships between strain rate and the elastic modulus, critical strain, Poisson's ratio and energy absorption capacity of concrete are still studied.

Based on the model, the influence of the thickness, elastic modulus and Poisson's ratio of the interfacial transition zone on the relative elastic modulus of concrete is analyzed in detail.