硅酸盐通报2023，Vol.42Issue(12)：4197-4207,4215,12.
基于响应面法的混杂纤维-复合胶凝材料体系优化设计
Optimal Design of Hybrid Fiber-Composite Cementitious Material System Based on Response Surface Methodology
摘要
Abstract
In order to overcome the disadvantage of poor mechanical properties of composite cementitious material system with large dosage,the response surface method was adopted to optimize the hybrid fiber composite cementitious material system,and the prediction model was established by taking the dosage of steel fiber,polypropylene fiber and desulphurization gypsum as the variable factors,and 28 d flexural strength and compressive strength of cement mortar as the evaluation indexes.Besides,the test of cement mortar and concrete was carried out to verify the predictive model.The results show that when the volume dosage of steel fiber is 0.4% ,the volume dosage of polypropylene fiber is 0.116% and the mass dosage of desulphurization gypsum is 8% ,the working and mechanical properties of composite materials reach the optimum,the predicted values of the 28 d flexural and compressive strength can be up to 7.0 and 37.4 MPa.The relative errors of flexural and compressive strength between the predicted values and the experimental values are only 2.86% and 1.32% and the standard deviation of the test values of flexural strength and compressive strength is 0.148 8 and 1.345 9,proving that the response surface method has high prediction precision,accuracy and scientificity.The optimisation effect of the composite cementitious material system is proved through this study,which provides a new solution idea and test basis for the multi-objective optimisation problem of composite materials.关键词
复合胶凝材料/钢纤维/聚丙烯纤维/混杂纤维/响应面法/多目标优化Key words
composite cementitious material/steel fiber/polypropylene fiber/hybrid fiber/response surface methodology/multi-objective optimization分类
建筑与水利引用本文复制引用
刘子仪,宋少民..基于响应面法的混杂纤维-复合胶凝材料体系优化设计[J].硅酸盐通报,2023,42(12):4197-4207,4215,12.基金项目
北京建筑大学市属高校基本科研业务费专项资金(X18255) （X18255）
北京未来城市设计高精尖创新中心研究项目(X20012) （X20012）
