Research progress of dynamic strength properties and test equipment for concrete

Because of the Complication in dynamic experiment of concrete, stiffness and accuracy of test equipment are required strictly. And there are different experimental methods in tests, conclusions are different in different tests. According to the test of dynamic properties for concrete, the research status about the equipment for uniaxial tensile and compressive strength of concrete was discussed in this paper. A classified introduction and commentary were provided on main research results of the dynamic strength properties of concrete at abroad recently. The mechanism of strain rate sensitivity was analyzed. Based on these experimental results, the test equipment and tensile and compressive strength of concrete material under high strain rate terms were studied. Through these analysis, the problems that need to resolve were points out in the development in dynamic constitutive relation of concrete, and it will provide a reference for further study.