Experiment and research on Mechanic Behavior of Concrete with different addition amounts of Polypropylene fibers

摘要

The effect of the different addition amounts of polypropylene fibers on the basic mechanical properties of concrete were investigated in this paper.The results show that the flexural tensile strength of concrete changed slightly after adding low-dosage polypropylene fiber(0.04％～ 0.16％); Axial compressive strength and flexural tension modulus decreased,limiting flexural strain increased gradually with the amounts of fibers rising.