钢纤维和聚丙烯纤维高性能混凝土力学性能试验

关键字：钢纤维,聚丙烯纤维,高性能,混凝土

（1.河海大学 水利水电学院，江苏 南京  210098；2.河海大学水利学科专业国家级实验教学示范中心，江苏 南京  210098；
3.河海大学 土木与交通学院，江苏 南京  210098）

 
 
    摘要：研究了钢纤维和聚丙烯纤维掺量对高性能混凝土抗压强度和劈裂抗拉强度的影响，并对影响机理进行了分析。结果表明，合理的纤维掺量对高性能混凝土抗压强度和劈裂抗拉强度均有一定的提高效果，对劈裂抗拉强度提高效果尤为显著。根据试验结果给出了掺钢纤维和聚丙烯纤维高性能混凝土抗压和劈裂抗拉强度的计算公式。
    关键词：C50混凝土；力学性能；钢纤维；聚丙烯纤维
    中图分类号：TU528.572        文献标识码：A        文章编号：1001-702X（2018）02-0022-04
 

Experimental study on mechanical properties of high performance steel fiber and
polypropylene fiber concrete
JIE Deerbieke1，2，ZHAO Haitao2，3，BA Hetebieke1，2，ZHOU Cheng1，2，JIA Lehasibai1，2
（1.College of Water Conservancy and Hydropower Engineering，Hohai University，Nanjing 210098，China；
2.National Water Conservancy Subject Experimental Teaching Demonstration Center，Hohai University，Nanjing 210098，China；3.College of Civil and Transportation Engineering，Hohai University，Nanjing 210098，China）

    Abstract：The effects of different content of steel fiber and polypropylene fiber on the compressive strength and splitting tensile strength of HPC were contrasted. The mechanical properties changes of steel and polypropylene fiber reinforced concrete were analyzed. The results show that reasonable amount of fiber can increase the compressive and splitting tensile strength of HPC，especially for splitting tensile strength. Finally，according to the test results，the formula of compressive and splitting tensile strength of HPC with steel and polypropylene fiber is proposed.
    Key words：C50 concrete，mechanical property，steel fiber，polypropylene fiber