生石灰掺量对低钙粉煤灰胶砂抗压强度影响的试验研究  

Experimental study on effect of content of quicklime on compressive strength of low-calcium fly ash mortar

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12期58-59,共2页Concrete

基　　金：国家自然科学基金(50978162;51278298)

摘　　要：通过低钙粉煤灰胶砂试验,对生石灰掺量和时间因素对抗压强度的影响进行了研究。低钙粉煤灰胶砂试件的抗压强度随时间和生石灰掺量增加而增高。对于钢管粉煤灰混凝土来说,为了提高其早期强度,应选用高钙粉煤灰,也可采用低钙粉煤灰中添加适量生石灰的方法。By the experiments of low-calcium fly ash mortar,the effect of time and content of quicklime on compressive strength of low-calcium fly ash mortar was studied.With time elapsing and quicklime content increasing,compressive strength of low-calcium fly ash mortar was enhanced.For a fly ash concrete-filled steel tube, in order to improve its early strength, high-calcium fly ash should be chosen and low-calcium fly ash with proper amount of quicklime added in was another good choice.

关 键 词：低钙粉煤灰 生石灰 抗压强度 

分 类 号：TU528.041[建筑科学—建筑技术科学]