聚羧酸系高效减水剂在中低强度等级混凝土中的研究与应用  

Research and application of polycarboxylates high performance water-reducing admixture on the normal medium-low grade concrete

作　　者：沙峰 李杰 梁忠林 陈秋喜 

机构地区：[1]北京中航空港混凝土有限公司,北京100124

出　　处：《混凝土》2009年第8期73-75,共3页Concrete

摘　　要：研究了聚羧酸系高效减水剂与普通硅酸盐水泥的适应性,通过低水胶比、大掺量矿粉与粉煤灰的技术手段,经过混凝土的性能测试,成功的配置了C30～C40的中低强度的高性能混凝土,且成本上与萘系的同等级的混凝土抗衡,对推广聚羧酸系高效减水剂在中低等级混凝土的使用及提高混凝土的耐久性起到一点推动和借鉴作用。The adaptability between polycarboxylates high performance water-reducing admixture and normal silicate cement was studied.The technical methods of low ratio of water and cement, large amount of mineral powder and coal powder were applied.Through testing the concrete capability, the high performance concrete for the medium-low C30-C40 was set successfully, and the cost of this kind of concrete is similar with that of naphthalene-series concrete.It will be used for reference at generalizing the application of polycarboxylates high performance water-reducing admixture at medium-low grade concrete and improving the resistance of concrete.

关 键 词：聚羧酸高效减水剂 大掺量矿粉和粉煤灰 水泥适应性 成本 

分 类 号：TU528.042.2[建筑科学—建筑技术科学]