亚硫酸钙对C_3A与C_4AF凝结时间的影响.pdf

25 3 硅 酸 盐 通 报 Vo.l 25 No. 3 2006 6 BULLETIN OF THE CH INESE CERAM IC SOC IETY June, 2006 C A C AF 3 4 刘辉敏 (, 71003) : C A C AF: 3 C AF, C A ; C A, , 3 3 SO 3. 5% , ; C A , 3 3 , ; , , , (AFm ) : ; ; Influence of Calcium Su lfite upon the SettingT im e of C A and C AF 3 4 LIU H uim in ( School ofMaterials, Luoyang College of Technology, Luoyang 71003) Abs tract: The effects ofCaSO 0. 5H O on the setting tmi e of cement clinkerw ith various content ofC A 3 2 3 and C AF w ere stud ied. The results show ed that the CaSO 0. 5H O had retarded setting action for 3 2 C AF but not for C A. If SO content in the cement w ere low er than 3. 5%, for the clinker w ith higher 3 3 content of interphase and C A, and coagu lating quickly itself, CaSO 0. 5H O w ou ldnt play a role as 3 3 2 retarder. For the clinker w ith low er content of interphase and C A asw ell as coagulating slo