基于正交试验的混合纤维混凝土力学性能研究

Study on mechanical properties of mixed fiber concrete based on orthogonal test

研究在相同水胶比(0.4)的情况下,为考察钢纤维、聚丙烯腈纤维和矿粉对C40混凝土力学性能影响,通过正交试验对混合纤维混凝土立方体抗压强度进行极差分析和方差分析。结果表明钢纤维对混凝土力学性能的影响最为明显;聚丙烯腈纤维对于立方体抗压强度的影响不是特别的显著;矿粉则表现出与聚丙烯腈相反的效果。

In order to investigate the influence of steel fiber,polyacrylonitrile fiber and mineral powder on the mechanical properties of C40 concrete under the same water binder ratio(0.4),The range analysis and variance analysis of cubic compressive strength of mixed fiber concrete were carried out by orthogonal test.The results show that steel fiber has the most obvious effect on the mechanical properties of concrete;The effect of polyacrylonitrile fiber on cube compressive strength is not particularly significant;The effect of mineral powder is opposite to that of polyacrylonitrile.