Effect of Fine Steel Slag Powder on the Early Hydration Process of Portland Cement  

作　　者：胡曙光 

机构地区：[1]Key Laboratory for Silicate Materials Science and Engineering (Wuhan University of Technology),Ministry of Education,Wuhan 430070,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2006年第1期147-149,共3页武汉理工大学学报（材料科学英文版）

基　　金：Funded by National 973 Project (No.2001CB610704-2)

摘　　要：Hydration heat evolution, non-evaporative water, setting time and SEM tests were peorormed to investigate the effect of fine steel slag powder on the hydration process of Portland cement and its mechanism. The results show that the effect of fine steel slag powder on the hydration process of Portland cement is closely related to its chemical composition, mineral phases, fineness, etc. Fine steel slag powder retards the hydration of portland cement at early age. The major reason for this phenomenon is the relative high content of MgO , MnO2, P2O5 in steel slag, and MgO solid solved in C3 S contained in steel slag.Hydration heat evolution, non-evaporative water, setting time and SEM tests were peorormed to investigate the effect of fine steel slag powder on the hydration process of Portland cement and its mechanism. The results show that the effect of fine steel slag powder on the hydration process of Portland cement is closely related to its chemical composition, mineral phases, fineness, etc. Fine steel slag powder retards the hydration of portland cement at early age. The major reason for this phenomenon is the relative high content of MgO , MnO2, P2O5 in steel slag, and MgO solid solved in C3 S contained in steel slag.

关 键 词：steel slag powder portland cement early hydration process 

分 类 号：TQ172[化学工程—水泥工业]