为了改善活性粉末混凝土的力学性能,采用了在活性粉末混凝土中混合掺加两种纤维的方法,即中等模量的耐碱玻璃纤维和低模量的聚丙烯纤维。本文通过两种纤维掺量的改变,研究二者混杂对活性粉末混凝土抗压强度、抗折强度力学性能的影响。从试验结果可以看出:两种纤维混杂后活性粉末混凝土的力学性能能够得到一定程度的改善。 In order to improve the mechanical properties of reactive powder concrete, a method of mixing and mixing two kinds of fibers in reactive powder concrete is adopted, that is, a medium modulus alkali-resistant glass fiber and a low modulus polypropylene fiber. In this paper, through the changes of two kinds of fiber content, the influence of the two mixed on the mechanical properties of compressive strength and flexural strength of reactive powder concrete was studied. It can be seen from the test results that the mechanical properties of the reactive powder concrete mixed with two kinds of fibers can be improved to a certain extent.