粉煤灰活性激发剂的试验研究  

Experimental study on the activators of fly ash

作　　者：张扬[1,2] 李四平[1] 陈兵[1] 赵社戌[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240 [2]南阳理工学院土木工程系,河南南阳473004

出　　处：《混凝土》2012年第9期63-64,68,共3页Concrete

基　　金：国家自然科学基金资助项目(50978162)

摘　　要：通过粉煤灰胶砂试验,对硫酸钠、熟石灰、硅酸钠、石膏、硫酸钠熟石灰复合剂5种粉煤灰活性激发剂进行了试验对比研究,同时对低钙粉煤灰和高钙粉煤灰也进行了对比试验分析。对于大掺量粉煤灰构件来说,为了提高其早期强度,应选用高钙粉煤灰,活性激发剂宜选石膏或硫酸钠熟石灰复合剂。By the experiments of fly ash mortar,the activating effect of five activators of fly ash （Na2SO4,Ca（OH）2,Na2SiO3,CaSO4,the mix- ture of Na2SO4 and Ca（OH）2） was compared and the impact of low-calcium fly ash and high-calcium fly ash on the mechanical properties of fly ash mortar was also analyzed.For a high volume fly ash part,in order to improve its early strength,high-calcium fly ash should be chosen and CaSO4 or the mixture of Na2SO4 and Ca（OH）2 should be selected as the activator.

关 键 词：粉煤灰 活性激发剂 胶砂 

分 类 号：TU528.042[建筑科学—建筑技术科学]