节点文献
共聚羧酸高效减水剂的合成与性能评价(第一部分)
Synthesis and Application of Co-Poly Carboxylic Acids (CoPoCa) as Superplasticizer (Part 1)
【摘要】 通过分子设计 ,研制出一类带有长侧链聚醚基团、羧酸基团、磺酸基团、羧酸酯基团的共聚羧酸高效减水剂 (CoPoCa Ⅰ ) .这类高效减水剂的减水率可达到2 5%左右 ,改善了新拌混凝土坍落度经时损失 ,混凝土 2 8d抗压强度增加 53 % .
【Abstract】 A type of co-poly carboxylic acid with long polyethylene oxide side-group、carboxylic acid group、sufonate、carboxyilc ester is synthesized (CoPoCa-I) andwasused as superplasticizer. Water-reducing ratio of this type of superplastic iz er can reach almost 25%, and it can improve slump loss of fresh concrete. Theco ncrete compressive strength in 28 days increases by 53%.
- 【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】48
- 【下载频次】300