Effects of Foreign Ions on Minerals of High Belite-Calcium Sulfoaluminate Cement
The influence of foreign ions doping on the property of belite - sulfoaluminate (BCSA) clinker with belite and calcium sulfo-aluminate as main minerals was investigated.The research on four foreign doping ions with P5+,B2+,Ba2+,and Zn2+ was carried out.The mineral components were characterized by SEM,X-ray powder diffraction and Infrared.Some foreign ions entering into the lattice of β-C2S and C4A3(S) during sintering at high temperature attained a high reactivity.The mechanism of the effect of these ions on stabilization and activation of minerals were clarified.Results revealed that P5+,Ba2+,and Zn2+ could stabilize and activate β-C2S as well as enhance reactivity of C43A(S),but no positive effect of ion B2+ was observed.The sequence of influence of different ions on C2S is: Ba2+>P5+>Reference>Zn2+>B3+,and the sequence for C4A3(S) was: P5+> Ba2+>Zn2+>Reference>B3+.Compared to the 28-d compressive strength of reference one,P5+,Ba2+,and Zn2+ could enhance the strength by 15.6%,8.9% and 26.5% respectively.
Belite-Calcium Sulphoaluminate Cement (BCSA cement) Foreign ions Stabilization Activation
Juan Li Chunying Zhou Yajin Yang
China Building Materials Academy, No.1, Guanzhuang Dongli, Chaoyang District, Beijing 100024,China;W China Building Materials Academy, No.1, Guanzhuang Dongli, Chaoyang District, Beijing 100024,China China United Cement Corporation, Jia 11 Sanlihe Road, Beijing 100037, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
239-244
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）