基于模糊正交试验的纤维混凝土纤维参数优选

该文以钢纤维体积率、长径比、外形和聚丙烯纤维体积率为因子,安排正交试验研究了混杂纤维各因素对高性能混凝土抗压强度和劈裂抗拉强度的影响,并利用模糊数学理论对正交试验结果进行了分析,得到了混杂纤维混凝土的较优配比。结果表明:纤维各物理参数对纤维高性能混凝土综合性能的影响程度从大到小依次为:钢纤维外形、聚丙烯体积率、钢纤维体积率、钢纤维长径比;基准混凝土中加入长径比为70、体积率为1.5%的端钩形钢纤维和体积率为0.055%的聚丙烯纤维混杂时,对高性能混凝土增强和增韧效果最优。

Optimizing Selection of Fiber Parameter for Fiber Concrete Based on Fuzzy Orthogonal Test

Taking the steel fiber volume rate,length-diameter ratio,externality and polypropylene fiber volume rate as the factors,the orthogonal test is arranged to study the influence of various factors of hybrid fiber on the compressive strength of high-performance concrete and the tensile strength of split,and the fuzzy mathematical theory is used to analyze the results of the orthogonal test so as to give the more excellent proportion of hybrid fiber concrete. The result makes clear that the sequence of the influ...