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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
【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。
【Abstract】 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;
【Key words】 self-compacting concrete; polycarboxylic acid; water reducing agent; workability; strength grade;
【Key words】 self-compacting concrete; polycarboxylic acid; water reducing agent; workability; strength grade;
【基金】 河北省科技攻关项目(06213701D);河北省建设厅项目(2004—122)
- 【文献出处】 新型建筑材料 ,New Building Materials , 编辑部邮箱 ,2007年12期
- 【分类号】TU528
- 【被引频次】2
- 【下载频次】55