Synthesis of Belite-Ye’elimite-Ternesite Cement Clinker

Abstract:

Belite - ye’elimite - ternesite (BYT) cement clinker has attracted much attention due to its advantages of wide range of raw materials, low energy consumption and low carbon emission compared with ordinary portland cement (OPC). In this experiment, chemical reagents were used as raw materials. The effects of calcination temperature and calcination time on clinker synthesis were studied. The best sintering temperature was determined by sintering in rang of 1150-1300°C (setting a temperature point every 30 °C), and then the samples were sintering for 1-6 hours (setting every hour) to determine the best sintering time. The stable condition of the BYT clinker was determined. The phase composition and microstructure of cement clinker were analyzed by X-ray powder diffraction (XRD) Rietveld refinement and Scanning Electronic Microscopy (SEM). The results showed that the desired clinker could be obtained by sintering at 1210°C for 2 hours. In the presence of C₄A₃$, the hydration of C₅S₂$ was accompanied by the formation of gypsum and the precipitation of ettringite.

• Periodical: Materials Science Forum (Volume 1036)
• Pages: 223-229
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1036.223
• Online since: June 2021
• Authors: Dao Peng Ji, Su Hua Ma*, Wei Feng Li
• Keywords: Belite-Ye’elimite-Ternesite, Hydration, Temperature

References

[1] W. Dienemann , D. Schmitt , F. Bullerjahn , et al, Belite - calciumsulfoaluminate - ternesite (BCT) - a new low carbon clinker technology, Cem. Inter. 11 (2013) 100-109.

[2] T. Hanein , I. Galan , F.P. Glasser , et al, Stability of ternesite and the production at scale of ternesite based clinkers, Cem. Concr. Res. 98 (2017) 91-100.

DOI: 10.1016/j.cemconres.2017.04.010

[3] Ben Haha M , Le Saout G , Winnefeld F , et al, Influence of activator type on hydration kinetics, hydrate assemblage and microstructural development of alkali activated blast-furnace slags, Cem. Concr. Res. 41 (2011) 301–310.

DOI: 10.1016/j.cemconres.2010.11.016

[4] Y Shen , J.S Qian , Y Huang, et al, Synthesis of belite sulfoaluminate - ternesite cements with phosphogypsum, Cem. Concr. Compos. 63 (2015) 67-75.

DOI: 10.1016/j.cemconcomp.2015.09.003

[5] M Fridrichova , D Gazdic , K Dvorak , et al, Study of hydration process of ternesite clinker, Mater. Sci. Eng. 385 (2018) 12-14.

DOI: 10.1088/1757-899x/385/1/012014

[6] Ioannou , L. Reig , K. Paine, et al, Properties of a ternary calcium sulfoaluminate-calcium sulfate-fly ash cement, Cem. Concr. Res. 56 (2014) 75-83.

DOI: 10.1016/j.cemconres.2013.09.015

[7] V. Makhmudova , M. Iskandarova , Y. Ivanova , et al, Synthesis and properties of sulphoferrite calcium clinkers and low temperature cements on their basis, J. Univ. Chem. Technol. Metall. 46 (2011) 151-154.

[8] I. Galan , A. Elhoweris , T. Hanein , et al, Advances in clinkering technology of calcium sulfoaluminate cement, Adv. Cem. Res. 29 (2017) 405-417.

DOI: 10.1680/jadcr.17.00028

[9] F. Bullerjahn , D. Schmitt , M. Ben Haha , et al, Effect of raw mix design and of clinkering process on the formation and mineralogical composition of (ternesite) belite calcium sulfoaluminate ferrite clinker, Cem. Concr. Res. 59 (2014) 87-95.

DOI: 10.1016/j.cemconres.2014.02.004

[10] F. Winnefeld , S. Barlag , Inflfluence of calcium sulfate and calcium hydroxide on the hydration of calcium sulfoaluminate clinker, ZKG Int. 62 (2009) 42-53.

[11] F. Winnefeld , B. Lothenbach , Hydration of calcium sulfoaluminate cements experimental findings and thermodynamic modelling, Cem. Concr. Res. 40 (2010) 1239-1247.

DOI: 10.1016/j.cemconres.2009.08.014

[12] L. Zhang , F.P. Glasser , Hydration of calcium sulfoaluminate cement at less than 24 h, Adv. Cem. Res. 14 (2002) 141-155.

DOI: 10.1680/adcr.2002.14.4.141

[13] Y Shen , X Chen , W Zhang , et al, Influence of ternesite on the properties of calcium sulfoaluminate cements blended with fly ash, Con. Build. Mater, 193 (2018) 221-229.

DOI: 10.1016/j.conbuildmat.2018.10.202

[14] N.R. Yang ,B.Q. Zhong ,P Dong , et al, Ettringite formation and conditions for its stability, J. Chin. Cera. Soc, 12 (1984) 155-165.

[15] J.H. Peng ,Z.H. Lou , Study on the mechanism of ettringite formation, J. Chin. Cera. Soc, 28 (2000) 511-515.