大流动性高强混凝土的配制研究  

Research on preparation of high-flowable high-strength concrete

作　　者：汪正兰[1] 王琳[2] 储健[2] 

机构地区：[1]安徽建筑工业学院建筑工程与材料系,安徽合肥230022 [2]安徽省建筑科学研究院建筑材料研究所安徽合肥,230001

出　　处：《合肥工业大学学报（自然科学版）》2001年第3期420-425,共6页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省教育厅自然科学基金资助项目! (97JL 170 )

摘　　要：介绍了大流动性高强混凝土的配制研究情况 ,分析了微细矿渣粉 (HBP)掺量和水灰比等影响因素 ,讨论了 HBP提高混凝土强度的机理。研究结果证明 :微细矿渣粉能够显著提高混凝土的抗压强度 ;当掺量在 5 %～ 15 %的范围内时 ,抗压强度随着掺量的增大而提高 ;使用 H BP、P.O5 2 5 R水泥和高效减水剂 ,能够配制出坍落度达 2 0 cm、2 8d抗压强度 78.3 MPa的混凝土。The research on preparation of high flowable high strength concrete is introduced. The influencing factors, such as the dosage of high fineness blust furnace slag powder (HBP), water cement ratio (w/c),are analyzed,and the mechanism of raising concrete strength by using HBP is discussed.The experimental results show that HBP can raise markedly the compression strength of the concrete; when the dosage is in the range of 5%~15%, the compression strength increases with the increase in dosage.The concrete can be prepared by using HBP,P·O525R cement and high range water reducing agent with the slump being as high as 20 cm and 28 d compression strength being as high as 78.3 MPa.

关 键 词：大流动性 高强混凝土 配制 微细矿渣粉 

分 类 号：TU528.31[建筑科学—建筑技术科学]