黄金尾矿制高贝利特相掺合料用于C80混凝土的耐久性研究  

Research on durability of C80 concrete with belite-rich admixture powder from gold mine tailings

作　　者：郜志海[1,2] 肖国先[2] 韩静云[1] 

机构地区：[1]苏州科技学院土木工程学院,江苏苏州215011 [2]苏州大学材料与化学化工学院,江苏苏州215021

出　　处：《混凝土》2009年第11期51-53,57,共4页Concrete

基　　金：国家"十一五"科技支撑计划合作项目(Z1201)

摘　　要：以黄金尾矿和石灰石为原料,煅烧制备富含高贝利特相的混凝土掺合料(JS)。研究用JS掺合料配制的C80高性能混凝土的耐久性能。结果表明采用JS掺合料配制的混凝土抗冻融破坏能力与普通C80混凝土性能差别不大;JS掺合料能改善混凝土的耐硫酸盐腐蚀性能;JS掺合料混凝土早期收缩略大于普通C80混凝土,后期两者基本相差不大;JS掺合料混凝土的抗渗性能与普通C80混凝土的抗渗性能相近。采用JS掺合料配制C80高性能混凝土耐久性不会出现问题。Gold mine tailings and limestone used as raw material, concrete admixture with belite-rich （JS） may be made.Durability of C80 high performance concrete with admixture JS is studied.The results can approve that： there is not much difference in freezing and thawing resistance be- tween concrete with admixture JS and ordinary C80 concrete; admixture JS can improve sulfate corrosion resistance of concrete; early shrinkage of concrete with JS is slightly more than ordinary C80 concrete ,and at later age there is not much difference in them;concrete with admixture JS has a close impermeability to ordinary C80 concrete.Durability of C80 high performance concrete with admixture JS can be safe.

关 键 词：黄金尾矿 高贝利特掺合料 高性能混凝土 耐久性能 

分 类 号：TU528.041[建筑科学—建筑技术科学]