低强度芯柱自密实混凝土试验研究  

Experimental study on low-strength self-compacting concrete for core column

作　　者：王国栋[1] 孟志良[1,2] 孙建恒[1] 李宏斌[1] 白永兵[1] 赵淑丽[1] 

机构地区：[1]河北农业大学城乡建设学院 [2]重庆大学材料科学与工程学院,重庆400045

出　　处：《新型建筑材料》2007年第12期12-15,共4页New Building Materials

基　　金：河北省科技攻关项目(06213701D);河北省建设厅项目(2004-122)

摘　　要：采用当地原材料,在C20自密实混凝土初步配合比的基础上,利用外加剂的合理复合和调整粉煤灰掺量配制出了满足工作性和强度等级要求的C20芯柱自密实混凝土,并分析了外加剂及其掺量等对自密实混凝土拌合物工作性的影响。C20 self-compacting concrete for core column which meets the requirement of workability and strength grade is prepared by selecting local raw materials, using reasonable compound admixtures and adjusting the content of fly ash based on C20 self-compacting concrete preliminary mixing proportion, and analyzes the effect of admixture and its content on workability of self-compacting concrete mixture.

关 键 词：自密实混凝土 聚羧酸 减水剂 工作性 强度等级 

分 类 号：TU528[建筑科学—建筑技术科学]