文献类型：期刊文献

中文题名：复掺硅灰和矿粉的高性能自密实混凝土抗压强度双因素试验

英文题名：Two-factor test on compressive strength of high performance self-compacting concrete mixed with silica fume and mineral powder

作者：段莉 徐桂弘 何立 任娟娟 吴安杰 李树茂

第一作者：段莉

机构：[1]贵州理工学院土木工程学院,贵州贵阳550008;[2]西南交通大学高速铁路线路工程教育部重点实验室,四川成都610031

第一机构：贵州理工学院土木工程学院

年份：2025

期号：7

起止页码：192-197

中文期刊名：混凝土

外文期刊名：Concrete

收录：;北大核心:【北大核心2023】；

基金：贵州省基础研究计划自然科学项目(黔科合基础-ZK[2022]一般170);国家自然科学基金地区基金(52268065);贵州省科技计划项目(黔科合基础[2020]1Y248);2023贵州理工学院创新创业训练项目国家级(38)。

语种：中文

中文关键词：自密实混凝土;抗压强度;龄期影响;双因素分析

外文关键词：self-compacting concrete;compressive strength;age influence;two-factor analysis

摘要：主要通过双因素试验并结合方差分析,研究矿粉、硅灰和水泥含量对高性能自密实混凝土抗压强度的影响。研究表明,矿粉掺量、硅灰掺量、水泥掺量及龄期均对高性能自密实混凝土的抗压强度有显著影响,且硅灰及水泥掺量对混凝土早期抗压强影响较显著;水灰比0.21时,矿粉掺量为74 kg/m^(3),硅灰掺量为69 kg/m^(3),水泥掺量为402 kg/m^(3)时为最优掺量;且给出了不同硅灰、矿粉及水泥掺量下,抗压强度随掺量的变化率拟合式,以及龄期与抗压强度之间关系拟合式。
The effects of the content of mineral powder,silica fume and cement on the compressive strength of high performance self-compacting concrete were studied by two-factor test combined with analysis of variance.The results show that the content of ore powder,wollastonite,cement and its age have significant effects on the compressive strength of high performance self-compacting concrete,and the content of wollastonite and cement has significant effects on the early compressive strength of concrete.When the water-cement ratio is 0.21,the content of mineral powder is 74 kg/m^(3),the content of silica fume is 69 kg/m^(3),and the content of cement is 402 kg/m^(3).The fitting formula of the change rate of compressive strength with different dosage of silica fume,mineral powder and cement,and the fitting formula of the relationship between age and compressive strength are given.