Influence of CaF₂ on the Formation Kinetics of Belite-Calcium Barium Sulphoaluminate Cement Clinker

Abstract:

This paper studies the formation dynamics of belite-calcium barium sulphoaluminate cement clinker with and without CaF₂. The results suggest that, under the condition of the experimental preparation process, the formation process of belite-calcium barium sulphoaluminate cement clinker is controlled by diffusion mechanism in the temperature range of 1250-1380¡æ and the formation dynamics fits nicely with D₄̍́˽̂ځ˿̃˽˸́˽ځ˹^2/3=kt. Apparent activation energy was calculated to be 250 kJ·mol^-1and 195 kJ·mol^-1 for sample clinker without and with 0.6% CaF₂ content. It is concluded that CaF₂ contributes a lot to the reduction in energy consumption during the process of sintering belite-calcium barium sulphoaluminate cement clinker.

• Periodical: Applied Mechanics and Materials (Volumes 541-542)
• Pages: 118-122
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.541-542.118
• Online since: March 2014
• Authors: Yong Bo Huang, Shou De Wang*, Yan Ting Zhao, Chen Chen Gong, Ling Chao Lu
• Keywords: Belite-Calcium Barium Sulphoaluminate Cement Clinker, CaF₂, Formation, Kinetic

References

[1] L. Kacimi, A. Simon-Masseron, S. Salem, A. Ghomari and Z. Derriche: Cem. Concr. Res. Vol. 39 (2009), p.559.

DOI: 10.1016/j.cemconres.2009.02.004

[2] C.D. Popescu and M. Muntean, J.H. Sharp: Cem. Concr. Compos. Vol. 25 (2003), p.693.

[3] Y.L. Chen, P.H. Shih, L. C. Chiang, Y.K. o Chang, H.C. Lu and J.E. Chang: J. Hazard. Mater. Vol. 170 (2009), p.448.

[4] Y.B. Huang, S.D. Wang, C.C. Gong, Y.T. Zhao and L.C. Lu: J. Inorg. Organomet. Polym. Vol. 23 (2013), p.1176.

[5] L.J. Xu and M.F. Jian: Bull. Chin. Ceram. Soc. Vol. 33 (2011), p.700.