硅酸盐通报2023，Vol.42Issue(12)：4283-4297,4308,16.
基于PCA的PVA/钢HFRCC配合比优化和综合评估
Mix Ratio Optimization and Comprehensive Evaluation of PVA/Steel HFRCC Based on PCA
摘要
Abstract
The mechanical properties of hybrid fiber reinforced cementious composites(HFRCC)can be better brought into play when steel fiber,domestic PVA fiber and Japanese Corari PVA fiber are prepared according to the appropriate proportion,which is beneficial to cost control and has a wide application prospect.The influences of steel fiber volume content,domestic PVA fiber on the replacement rate of Nissan PVA fiber(volume fraction,same below)on the tensile strength,compressive strength and bending strength of HFRCC were analyzed by factor optimization method and principal component analysis(PCA).Through the principal component analysis of HFRCC,the mathematical model of comprehensive performance evaluation was established,and the multi-objective optimization was carried out.The results show that the maximum increase of tensile strength,compressive strength and bending strength of HFRCC is 61.04% ,31.30% and 78.57% respectively.When the steel fiber content is 0.2% ～0.4% and the domestic PVA fiber volume replacement rate is 50% ～100% ,the maximum cost reduction is 88.25% ,and the HFRCC strength index can reach the best.The weight proportion of each factor affecting HFRCC performance is as follows:domestic PVA fiber content,Nissan PVA fiber content and bending strength account for 46.28% .The content,compressive strength and bending strength of steel fiber account for 25.58% .The content and tensile strength of steel fiber account for 22.25% .Combined with variable correlation analysis,these indicators should be focused on when performance optimization based on HFRCC.The results can provide a basis for the preparation of HFRCC.关键词
主成分分析法/因素优选法/混杂纤维增强水泥基材料/钢纤维/PVA纤维/配合比优化Key words
principal component analysis/factor optimization method/hybrid fiber reinforced cementious composites/steel fiber/PVA fiber/mix ratio optimization分类
建筑与水利引用本文复制引用
王睿,张品乐,胡静..基于PCA的PVA/钢HFRCC配合比优化和综合评估[J].硅酸盐通报,2023,42(12):4283-4297,4308,16.基金项目
国家自然科学基金(52168069,51568028) （52168069,51568028）
