Biaxial compressive and compressive tensile loading tests on cubic roller compacted concrete（RCC） specimens with interfaces were conducted at different loading rates. The effect of loading rates on the dynamic strength and deformation properties of RCC was investigated. The results show that the change rule of strength with loading rate and lateral stress for the RCC samples with well treated interfaces is similar with that of conventional concrete material under dynamic extension, compression and biaxial tests. Based on the experimental results, dynamic failure criteria are proposed to characterize both the effect of loading rate and the effect of lateral stress on the strength of RCC under biaxial stress states, which provide reference for assessment of the safety of RCC structure under dynamic loads such as explosion and earthquake.