微珠对高石粉含量机制砂C60混凝土性能的影响  

Effect of microbeads on properties of C60 manufactured sand concrete with high stone powder content

作　　者：王振华 WANG Zhenhua(Jianyan Testing Group Co.,Ltd.,Xiamen 361004,China)

机构地区：[1]健研检测集团有限公司,福建厦门361004

出　　处：《混凝土与水泥制品》2023年第7期23-25,30,共4页China Concrete and Cement Products

摘　　要：研究了微珠掺量(0、4%、8%、12%、16%)对高石粉含量机制砂C60混凝土的工作性、力学性能和耐久性能的影响。结果表明:掺入适量的微珠能改善高石粉含量机制砂C60混凝土拌合物的流动性,降低1 h坍落度损失和倒筒排空时间,提高力学和耐久性能;当微珠掺量为8%~12%时,高石粉含量机制砂C60混凝土的综合性能最佳。The effects of the contents of microbeads(0,4%,8%,12%,16%)on workability,mechanical properties and durability of C60 manufactured sand concrete with high stone powder content were studied.The results show that adding proper content of microbeads can improve the fluidity of the concrete mix with high stone powder content,reduce the slump loss in 1 h and the empty time of the backward cylinder,and improve the mechanical and durability properties of concrete.When the content of microbeads is 8%~12%,the comprehensive performance of C60 manufactured sand concrete with high stone powder content is the best.

关 键 词：高石粉含量机制砂 微珠 C60机制砂混凝土 力学性能 耐久性能 

分 类 号：TU528.3[建筑科学—建筑技术科学]