Strength Activity Index of Air Quenched Basic Oxygen Furnace Steel Slag

被引：0
|
作者：
Lei GAN [1 ,2 ]
Hai-feng WANG [2 ]
Xiu-ping LI [2 ]
Yuan-hong QI [2 ]
Chun-xia ZHANG [2 ]
机构：
[1] School of Metallurgical and Chemical Engineering,Jiangxi University of Science and Technology
[2] State Key Laboratory of Advanced Steel Processes and Products,Central Iron and Steel Research Institute
来源：
Journal of Iron and Steel Research(International) | 2015年 / 22卷 / 03期
基金：
中国国家自然科学基金;
关键词：
basic oxygen furnace steel slag; strength activity index; mineral characteristics; cementitious property; tricalcium silicate(C3S);
D O I：
暂无
中图分类号：
TF713 [熔炼过程及操作];
学科分类号：
080602 ;
摘要：
Air quenched basic oxygen furnace steel slag(BOF-SS)is processed at very high cooling rate,which is expected to have different cementitious properties from conventional slowly cooled BOF-SS.For this purpose,the strength activity indexes of air quenched and slowly cooled BOF-SS are investigated.The results reveal that,under the specific surface area(S) of 490m2/kg,the compressive strength activity index reaches 1.24 after 28days with replacement of 15% air quenched BOF-SS and reaches 1.05 after 28days with replacement of 20% air quenched BOF-SS and 30% granulated blast furnace slag(GBFS).The cementitious activity of air quenched BOF-SS is obviously higher than that of slowly cooled BOF-SS,mainly because it contains more C3S and glassy phases.
引用
收藏
页码：219 / 225
页数：7
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