聚丙烯纤维对混凝土性能影响的试验研究

Experimental Studies on the Effect of Polypropylene Fiber on the Performance of Concrete

文章研究了经过膨化和未经膨化的聚丙烯纤维对混凝土的掺杂效应。通过对掺入混凝土的聚丙烯纤维进行物理、化学、力学等方面的性能测试 ,分析了聚丙烯纤维掺入混凝土的可行性 ;通过对掺杂聚丙稀纤维混凝土进行力学性能的测试 ,研究了掺入纤维后混凝土性能的改变情况及其原因 ,进而结合试验结果分析影响掺杂效果的主要因素 ,提出聚丙烯纤维掺量的临界值。

The article synthetically researches the intermingle impact of expanded polypropylene fiber and unexpanded polypropyˉlene fiber.By the physical,chemical,and mechanical performance testing of polypropylene fiber,the feasibility of fiber concrete is resarched.Bythemechanical performance'stestingofpolypropylene-fiber-reinforced-concrete,theconcreteperformance's alterˉant instance and its reasons after fiber mingling are researched.Then by combing experimental results,the paper analyzes the main factors that affect mingling and brings forward the critical value of fiber mingling quantity.