混杂纤维混凝土的力学性能及抗渗性能

Mechanical Properties and Impermeability of Hybrid Fiber Reinforced Concrete

进行了混杂纤维(钢纤维-改性聚丙烯纤维)混凝土力学性能及抗渗性能的试验研究.结果表明,混杂纤维可以提高混凝土的抗压强度、劈拉强度和抗折强度,但对混凝土抗渗性能影响不大.引气剂有助于提高混杂纤维混凝土的抗渗性.另外,简单分析了纤维混杂方式对混凝土力学性能和抗渗性能影响的机理.

Experiment on mechanical properties and impermeability of steel fiber and modified polypropylene fiber hybrid reinforced concrete were carried out. The test results show that hybrid fibers increase concrete＇s compressive strength, splitting tensile strength and flexural strength, but it have little effect on concrete＇s impermeability. And air-entraining agent increases impermeability of hybrid fiber reinforced concrete. The reason why hybrid mode of fiber has effect on mechanical properties and impermeability of hybrid fiber reinforced concrete are also analyzed.