作　　者： (汪飞）; (王伯昕）; (张中琼）;

机构地区： 吉林大学建设工程学院,吉林长春130021

出　　处： 《混凝土》 2017年第8期85-87,共3页

摘　　要： 在纤维总体积率为1%的条件下,进行了混杂纤维混凝土抗冻性能试验研究。试验结果表明,掺加钢纤维和改性聚丙烯纤维能有效提高混凝土表面抗剥落能力,在一定程度上提高了混凝土的的抗冻性能。其中,掺加0.3%改性聚丙烯纤维和0.7%钢纤维的试件的抗冻性能明显优于1%钢纤维的试件及0.5%改性聚丙烯纤维和0.5%钢纤维的试件。 The freezing-thawing resistance of hybrid fiber reinforced concrete is studied under the condition of total vohnne ratio of 1%. The test results show that the addition of hybrid fiber can significantly improve the ability of concrete to resist spalling, which could also enhance the freezing-thawing resistance of concrete to some extent.It＇s concluded that the anti freezing-thawing property of the concrete doped with 0.3% modified polypropylene fiber plus 0.7% steel fiber has greatly increased compared with 1.0% steel fiber and 0.5% modi- fied polypropylene fiber plus 0.5% steel fiber.

关 键 词： 混杂纤维 钢纤维 改性聚丙烯纤维 混凝土