江西建材Issue(3)：20-21,25,3.
硅灰掺量对高性能混凝土强度及孔隙结构影响分析
Analysis of the Impact of Silica Fume Dosageon the Strength and Pore Structure of High-performance Concrete
摘要
Abstract
This paper investigates the effects of silica fume dosage on the compressive strength and pore structure of High-performance self-compacting concrete(HPSCC)through experimental studies.HPSCC specimens with varying silica fume dosages were prepared and tested for compressive strength and pore structure.The results show that silica fume dosage significantly affects the compressive strength of HPSCC,with the highest 28-day compressive strength achieved at a dosage of 12%.An increase in silica fume dosage has a greater impact on the early com-pressive strength of HPSCC,while its effect on later strength is not significant.Pore structure tests indicate that the pores in HPSCC are mainly mesopores,and their content increases with the increase of silica fume dosage.At a dosage of 12%,the development of pores is the most uni-form,and the pore size distribution is concentrated.关键词
高性能自密实混凝土(HPSCC)/硅灰/抗压强度/孔隙结构Key words
High-performance self-compacting concrete(HPSCC)/Silica fume/Compressive strength/Pore structure分类
建筑与水利引用本文复制引用
李述茂,段莉,徐桂弘,龙海磊,陈宗洪,王尊闲,秦鹏..硅灰掺量对高性能混凝土强度及孔隙结构影响分析[J].江西建材,2025,(3):20-21,25,3.基金项目
贵州理工学院大学生创新创业训练项目《碳达峰背景下贵州特色机制砂高性能自密实混凝土力学性能研究》,贵州省基础研究计划自然科学基金《高性能自密实混凝土拌合物的自密实性与耐久性研究》(项目编号:黔科合基础-ZK[2022]一般170),国家自然科学基金地区基金《多雨地区无砟轨道结构裂纹处"冒白浆"及空蚀演化机理研究》(项目编号:52268065). （项目编号:黔科合基础-ZK[2022]一般170）
