山东建筑大学学报2025，Vol.40Issue(5)：7-12,6.DOI:10.12077/sdjz.2025.05.002
投料工艺对钢纤维混凝土抗压强度影响的试验研究
Experimental study on the influence of different feeding process on the compressive strength of steel fiber reinforced concrete
摘要
Abstract
To investigate how the relationship between fiber distribution and the feeding process affects the performance of steel fiber reinforced concrete(SFRC),five distinct feeding methods were developed by adjusting the feeding sequence and mixing time,without altering the concrete mix proportions.The influence of these methods on the compressive strength of SFRC cube specimens was then evaluated.The results show that,compared with the baseline method(simultaneous addition of cementitious materials,aggregates,and fibers),feeding method 1(pre-mixing coarse and fine aggregates with fibers for 60 seconds)led to a slight reduction in compressive strength for bundled fiber specimens.In contrast,the other four feeding methods resulted in varying degrees of strength enhancement.The optimal feeding method should be selected based on fiber type:method 3(sequential addition of coarse/fine aggregates and fibers)is recommended for wavy and bundled fibers,while method 5(a modified version of method 3 with an adjusted feeding sequence and extended mixing time)is optimal for hooked-end fibers.关键词
钢纤维混凝土/投料方式/纤维分布/抗压强度Key words
steel fiber reinforced concrete/feeding mode/fiber distribution/compressive strength分类
建筑与水利引用本文复制引用
孙会彬,杨惠翔,王剑宏,胡云发,赵成龙..投料工艺对钢纤维混凝土抗压强度影响的试验研究[J].山东建筑大学学报,2025,40(5):7-12,6.基金项目
国家自然科学基金项目(52209140) （52209140）
山东省自然科学基金项目(ZR2020KE031) （ZR2020KE031）
山东省住房城乡建设科技计划项目(2021-K5-34) （2021-K5-34）
山东建筑大学博士科研基金项目(XNBS20106) （XNBS20106）
