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含不同结构单元共聚羧酸高效减水剂的应用研究
Application of Co-Poly Carboxylic Acids with Various Side-chain Groups as Superplasticizer
【摘要】 介绍了多种共聚羧酸系列混凝土高效减水剂在混凝土中的应用特性 ,对混凝土的坍落度保持性、减水率、抗压强度等进行了研究 .在混凝土中掺加 0 .6%~ 0 .75%的共聚羧酸系列产品 ,最高减水率可达 3 0 % ,混凝土的 2 8d强度可提高 3 0 %~ 50 % .
【Abstract】 In this article, application characteristics of several kinds of co-poly carboxylic acids superplasticizer in concrete are introduced. Concrete slump, water-reducing ratio, compressive strength and so on are also investigated. The highe stwater-reducing ratio of concrete with 0.6%~0.7%(solid) co-poly arboxy lic acid products can reach as high as 30%, and compressive strength in 28 dayscanincrease by 30%~50%.
【关键词】 高效减水剂;
共聚羧酸;
混凝土外加剂;
坍落度保持性;
【Key words】 superplasticizer; co-poly carboxylic acid; slump retenton of conrete; water-reducing admixture;
【Key words】 superplasticizer; co-poly carboxylic acid; slump retenton of conrete; water-reducing admixture;
- 【文献出处】 应用基础与工程科学学报 ,Journal of Basic Science and Engineering , 编辑部邮箱 ,2002年03期
- 【分类号】TU528
- 【被引频次】16
- 【下载频次】120