基于响应面分析法的钢纤维混凝土耐磨性试验研究

发布时间：2018-04-04 18:36

本文选题：道路工程　切入点：钢纤维混凝土　出处：《公路交通科技》2015年07期

【摘要】：针对钢纤维水泥混凝土路面磨损的问题,通过使用Design Expert 7.0软件的响应面分析法分析钢纤维长径比、钢纤维体积掺入率和水胶比对钢纤维混凝土耐磨性的影响,建立钢纤维混凝土耐磨性试验模型并进行最优化预测,对模型进行了回归分析和方差分析。结果表明:模型失拟项差异不显著,试验数据与模型相关的情况显著,模型可信;复相关系数表明该模型模拟出的理论磨损量与实际试验近似度的差异性小,拟合较好;通过求解模型最优化结果可知钢纤维混凝土在耐磨性最好时的钢纤维长径比、钢纤维掺入率以及水胶比的情况,并且试验值与理论预测相差不大,说明使用响应面分析法进行理论分析可以契合钢纤维混凝土磨损的实际情况。
[Abstract]:Aiming at the wear problem of steel fiber cement concrete pavement, the effects of steel fiber aspect ratio, steel fiber volume incorporation rate and water / binder ratio on wear resistance of steel fiber concrete were analyzed by using the response surface analysis method of Design Expert 7.0 software.The wear resistance test model of steel fiber reinforced concrete (SFRC) was established and the optimum prediction was carried out. The regression analysis and variance analysis of the model were carried out.The results show that there is no significant difference between the model and the model, and the experimental data is significantly related to the model and the model is credible, and the complex correlation coefficient shows that the difference between the theoretical wear quantity simulated by the model and the experimental approximation is small and the fitting is better.The results of model optimization show that the steel fiber aspect ratio, steel fiber incorporation rate and water-binder ratio of steel fiber reinforced concrete have the best wear resistance, and the experimental value is not different from the theoretical prediction.It is shown that the theoretical analysis using response surface analysis method can fit the actual situation of steel fiber reinforced concrete wear.
【作者单位】：东北林业大学土木工程学院;
【分类号】：U414

【共引文献】