文献类型：期刊文献

中文题名：硅灰对高性能自密实混凝土抗压强度的影响研究

英文题名：Analysis on the effect of silica fume dosage on the compressive strength of high-performance self-compacting concrete

作者：李思夏 段莉 徐桂弘 罗雨欣 雷耀华 胡毅

第一作者：李思夏

机构：[1]贵州理工学院土木工程学院,贵州贵阳550008;[2]毕节市宇原建材(集团)有限责任公司,贵州毕节551700

第一机构：贵州理工学院土木工程学院

年份：2025

卷号：52

期号：11

起止页码：57-59

中文期刊名：新型建筑材料

外文期刊名：New Building Materials

基金：国家自然科学基金地区基金项目(52268065);贵州省科技计划项目(黔科合基础-ZK[2022]重点027,一般170);黔科合平台人才项目(-GCC[2023]053);贵州理工学院大学生创新创业训练项目(2022);贵州宇原基金项目(2021)。

语种：中文

中文关键词：高性能混凝土;自密实混凝土;数值模型;方差分析;硅灰掺量

外文关键词：high performance concrete;self compacting concrete;numerical model;analysis of variance;silica fume content

摘要：采用双因素方差法,分析研究了硅灰掺量及龄期对高性能自密实混凝土(HPSCC)抗压强度的影响,并建立了抗压强度预测模型。结果表明,硅灰掺量及龄期均对HPSCC的抗压强度均有明显影响;随硅灰掺量增加,混凝土的抗压强度先提高后降低,硅灰掺量13%时,混凝土的28 d抗压强度最高;硅灰掺量增加对早期抗压强度变化影响更明显,在掺量15%时,HPSCC的7 d/28 d抗压强度比达92.1%;建立了基于硅灰掺量和龄期的HPSCC抗压强度预测模型。
In this paper,the effects of silica fume content and age on the compressive strength of high performance self-compacting concrete(HPSCC)were investigated through two-factor variance analysis,and a compressive strength prediction model was established.Studies have shown that both the silica fume content and age have a significant effect on the compressive strength of HPSCC.The compressive strength of the cube first increases then decreases with the increase of silica fume content and then,the 28 d compressive strength reaches the maximum value when the silica fume content is 13%.The increase of silica fume content has a certain effect on change of early compressive strength,and the 7 d/28 d strength ratio reaches 92.1%when the content is 15%.The HPSCC compressive strength prediction model based on silica fume content and age has been established.