粉煤灰对聚羧酸系减水剂与水泥相容性影响的试验研究

Experiment of the Effect of Fly Ash on the Compatibility of Polycarboxylic Water Reducer and Cement

通过试验,研究了不同粉煤灰掺量下,砂浆在聚羧酸系减水剂掺量变化时的扩展度经时损失情况。经研究分析发现,40%粉煤灰掺量时,砂浆的扩展度经时损失及减水剂的用量最符合实际工程应用。

Through the experiment,the paper studies the expansion degree of the mortar in the process of the variation of polycarboxylic acid series water reducing agent with different fly ash content.It is found that when 40%fly ash content,the expansion degree of mortar and the dosage of water reducing agent are the most suitable for practical engineering.