道路用塑钢纤维-橡胶混凝土配合比及本构关系研究
发布时间：2018-10-12 15:51
【摘要】：通过正交试验,选取塑钢纤维掺量、橡胶掺量及不同的橡胶改性方法等三种因素,对路用塑钢纤维-改性橡胶混凝土基本力学性能展开研究。研究结果表明,塑钢纤维的掺加可以在一定程度上弥补橡胶混凝土强度的不利影响,随着塑钢纤维掺量的增大,橡胶混凝土强度有所提高,弹性模量降低;对橡胶进行改性处理有利于增强橡胶与水泥基体间粘结强度,优化橡胶混凝土力学性能,其中Al_2(SO_4)_3溶液浸泡法改性效果最佳。基于配合比优选结果,拟合出不同塑钢纤维掺量混凝土应力-应变本构曲线。
[Abstract]:Through orthogonal test, the basic mechanical properties of plastic-steel fiber modified rubber concrete were studied by selecting three factors, such as the content of plastic steel fiber, the amount of rubber and different methods of rubber modification. The results show that the addition of plastic-steel fiber can make up for the negative effect of rubber concrete strength to some extent. With the increase of the content of plastic steel fiber, the strength of rubber concrete increases and the elastic modulus decreases. The modification of rubber can enhance the bond strength between rubber and cement matrix, and optimize the mechanical properties of rubber concrete. The Al_2 (SO_4) _ 3 solution immersion method is the best. The stress-strain constitutive curves of concrete with different plastic-steel fiber content were fitted based on the optimum selection results.
【作者单位】： 太原理工大学建筑与土木工程学院;太原理工大学政法学院;
【分类号】：U414
本文编号：2266707
[Abstract]:Through orthogonal test, the basic mechanical properties of plastic-steel fiber modified rubber concrete were studied by selecting three factors, such as the content of plastic steel fiber, the amount of rubber and different methods of rubber modification. The results show that the addition of plastic-steel fiber can make up for the negative effect of rubber concrete strength to some extent. With the increase of the content of plastic steel fiber, the strength of rubber concrete increases and the elastic modulus decreases. The modification of rubber can enhance the bond strength between rubber and cement matrix, and optimize the mechanical properties of rubber concrete. The Al_2 (SO_4) _ 3 solution immersion method is the best. The stress-strain constitutive curves of concrete with different plastic-steel fiber content were fitted based on the optimum selection results.
【作者单位】： 太原理工大学建筑与土木工程学院;太原理工大学政法学院;
【分类号】：U414
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