Effects of clay on properties of polycarboxylate superplasticizer and solutions
Effects of clay on properties of polycarboxylate superplasticizer and solutions
复制标题
DOI：
10.1007/s11595-015-1290-7
复制
发表时间：
2015-12
期刊：
影响因子：
--
通讯作者：
Lin Wang;Dongmin Wang
中科院分区：
文献类型：
--
作者：
Lin Wang;Dongmin Wang
研究了粘土对掺聚羧酸减水剂砂浆流动度的影响规律。讨论了抑制聚羧酸减水剂粘土吸附的几种方法。结果表明，粘土对聚羧酸减水剂的分散性有显著影响，蒙脱土对砂浆流动度的影响更为显著。溶液的pH值和盐类对粘土在聚羧酸减水剂上的吸附有影响。加入少量氢氧化钠溶液、硅酸钠或阳离子表面活性剂可改善粘土对聚羧酸减水剂的分散效果。
The influence law of clay on mortar fluidity mixed with polycarboxylate superplasticizer was studied. Several methods of inhibiting clay adsorption of polycarboxylate superplasticizer were discussed. The experimental results show that clay has significant effect on the dispersion of polycarboxylate superplasticizer and montmorillonite clay has more significant impact on mortar fluidity than other clays. The pH value and the salts of the solution can affect the adsorption of clay to polycarboxylate superplasticizer. The incorporation of a small amount of sodium hydroxide solution, sodium silicate or cationic surfactants can improve the effect of the clay on the dispersion of polycarboxylate superplasticizer.