Effect of Phosphorus and Fluorine on Hydration Process of Tricaleium Silicate and Tricalcium Aluminate

武汉理工大学学报-材料科学版(英文版), 2012, 27(2): 333-336. doi: 10.1007/s11595-012-0462-y

^1, , ^2, , ^3, , ^4, , ^5,

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

4.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

5.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Effect of Phosphorus and Fluorine on Hydration Process of Tricaleium Silicate and Tricalcium Aluminate

GUO Chengzhou ^1, , ZHU Jiaoqun ^2, , ZHOU Weibing ^3, , SUN Zheng ^4, , CHEN Wei ^5,

1.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

4.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

5.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Keywords： phosphorous slag

By means of hydration heat,XRD and SEM,effect of phosphorus and fluorine (P2O5 and F-) in phosphorous slag on hydration process of tricalcium silicate (C3S) and tricalcium aluminate (C3A) was explored.The results indicated that the early hydration exothermic rate of C3S and C3A was obviously lowered by P2O5 and F- in phosphorous slag,the second peak occurring time of C3A was delayed by 0.9 h,the exothermal output of C3S was reduced by 25.04％ and the time of accelerating stage was postponed by 0.86 h.The early hydration degree of C3S and C3A was also decreased.Due to the influence of P2O5 and F-,more pores and thinner crystals can be observed in the microstructure of hardened paste and the chance of cracks was reduced.

参考文献

[1]	N.Y. Mostafa;S.A.S. El-Hemaly;E.I. A1-Wakee1 .Characterization and evaluation of the hydraulic activity of water-cooled slag and air-cooled slag[J].Cement and Concrete Research,2001(6):899-904.
[2]	LI Dong-xu,CHEN Lin,XU Zhong-zi,LUO Zhi-min.A Blended Cement Containing Blast Furnace Slag and Phosphorous Slag[J].武汉理工大学学报(材料科学版)英,2002(02):62-65.
[3]	Buchwald, A;Tatarin, R;Stephan, D .Reaction progress of alkaline-activated metakaolin-ground granulated blast furnace slag blends[J].Journal of Materials Science,2009(20):5609-5617.
[4]	Influence of Si:Al ratio on the microstructural and mechanical properties of a fine-limestone aggregate alkali-activated slag concrete[J].Materials and structures,2010(7):P.1025.
[5]	Li Dongxu;Shen Jinlin;Chen Lin .The influence of fast-setting/early-strength agent on high phosphorous slag content cement[J].Cement and Concrete Research,2001(1):19-24.
[6]	Xiaoguang Yang,Wen Ni,Xufang Zhang,Yali Wang.Effect of alkali-activation on aluminosilicate-based cementitious materials[J].北京科技大学学报（英文版）,2008(06):796-801.
[7]	CHEN Xia,FANG Kunhe,YANG Huaquan,PENG Hua.Hydration Kinetics of Phosphorus Slag-cement Paste[J].武汉理工大学学报（材料科学版）（英文版）,2011(01):142-146.
[8]	A. Wesselsky;O.M. Jensen .Synthesis of pure Portland cement phases[J].Cement and Concrete Research,2009(11):973-980.

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Effect of Phosphorus and Fluorine on Hydration Process of Tricaleium Silicate and Tricalcium Aluminate

参考文献