Calcium Silicate Materials: Substitution of Hydrated Lime by Ground Granulated Blast Furnace Slag in Autoclaving Conditions
Publication: Journal of Materials in Civil Engineering
Volume 24, Issue 9
Abstract
This paper deals with progressive substitution of hydrated lime by granulated blast furnace slag to produce new calcium silicate materials obtained by autoclaving, representing an alternative economic raw material. The slag grain-size grinding and the heat treatment in saturated vapor pressure autoclave conditions were investigated to study the compressive strength behavior of the new material. The results showed a decrease in compressive strength from the substitution. The microstructure analysis showed that reaction products consist mainly of 11 Å tobermorite and xonotlite. When increasing the autoclave temperature, it results in an increase in xonotlite relative to tobermorite. It is also observed that the amorphous composition of granulated blast furnace slag does not release new distinct phases of hydrates. The autoclaved products were characterized using X-ray diffraction (XRD) technique and scanning electron microscope (SEM) equipped with energy dispersive spectrometer (EDX).
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Acknowledgements
The authors express their thanks to Joseph Le Lannic, CMEBA Rennes University, for his assistance with scanning electron microscopy.
References
Aitken, A., and Taylor, H. F. W. (1960). “Hydrotermal reactions in lime-quartz pastes.” J. Appl. Chem., 10, 7–15.
Alexandre, J., and Sebileau, J. L. (1988). Le laitier de haut-fourneau: élaboration, traitements, propriétés, emplois, CTPL, Paris.
Al-Wakeel, E. I., El-Korashy, S. A., El-Hemaly, S. A., and Uossef, N. (1999). “Promotion effect of C-S-H phase nuclei on building calcium silicate hydrate phases.” Cem. Concr. Compos., 21(3), 173–180.
Arabi, N. (1988). “Study of sand-lime bricks containing granulated slag.” Master thesis, Annaba University, Algeria.
Assarasson, G. O. (1960). “Hydrothermal reactions of calcium hydroxide-Quartz at 120 and 220 °C.” J. Phys. Chem., 64(3), 328–331.
Barnett, S. J., Soutsos, M. N., Millard, S. G., and Bungey, J. H. (2006). “Strength development of mortars containing ground granulated blast-furnace slag: Effect of curing temperature and determination of apparent activation energies.” Cem. Concr. Res., 36(3), 434–440.
Behim, M., Redjel, B., and Jauberthie, R. (2002). “Réactivité du laitier de haut fourneau d’Annaba en substitution partielle du ciment.” J. Physiques IV, 12(6), 223–228.
Black, L., Garbev, and Stumm, A. (2009). “Structure bonding and morphology of hydrothermally-synthesised xonotlite.” Adv. Appl. Ceram., 108(3), 137–144.
Bougara, A., Lynsdale, C., and Ezziane, K. (2009). “Activation of Algerian slag in mortars.” Constr. Build. Mater., 23(1), 542–547.
Diamond, S. (1964). “Coordination of substituted aluminum in tobermorite.” J. Am. Ceram. Soc., 47(11), 593–594.
Dyczek, J. R. L., and Taylor, H. F. W. (1971). “X-ray determination of tobermorite, quartz and -dicalcium silicate hydrate in autoclaved calcium silicate materials.” Cem. Concr. Res., 1(6), 589–605.
El-Hemaly, S. A. S., Mitsuda, T., and Taylor, H. F. W. (1977). “Synthesis of normal and anomalous tobermorite.” Cem. Concr. Res., 7, 429–432.
European Standard NF P 15-442. (1991). “EN 196-6 Méthodes d’essai des ciments—Partie 6: Détermination de la finesse.”
Gruskovnjak, A. et al. (2008). “Hydration mechanisms of super sulphated slag cement.” Cem. Concr. Res., 38(7), 983–992.
Gutovic, M., Klimesch, D. S., and Ray, A. (2005). “Strength development in hydrothermally treated OPC: CB systems.” J. Therm. Anal. Calorim., 80(3), 631–635.
Hong, S. Y., and Glasser, F. P. (2004). “Phase relations in the system to 200°C at saturated steam pressure.” Cement and Concrete Research, 34(9), 1529–1534.
The International Centre for Diffraction Data (ICDD). (1997). “Powder diffraction file for Tobermorite () [45-1480], Xonotlite () [29-0379].”
Jauberthie, R., Temimi, M., and Laquerbe, M. (1996). “Hydrothermal transformation of tobermorite gel to 10 Å tobermorite.” Cem. Concr. Res., 26(9), 1335–1339.
Jing, Z., Jin, F., Hashida, T., Yamasaki, N., and Ishida, E. H. (2008). “Influence of tobermorite formation on mechanical properties of hydrothermally solidified blast furnace slag.” J. Mater. Sci., 43(7), 2356–2361.
Kalousek, G. L. (1955). “Tobermorite and related phases in the system .” J. ACI., 51(6), 989–1011.
Klimesch, D. S., and Ray, A. (2002). “Evaluation of phases in a hydrothermally treated system.” J. Therm. Anal. Calorim., 70(3), 995–1003.
Kondo, R. (1965). “Kinetic study on hydrothermal reaction between lime and silica.” Proc. 1st Int. Symp. on Autoclaved Calcium Silicate Building Products, London, 92–97.
Kumar, R., Kumar, S., Badjena, S., and Mehrotra, S. P. (2005). “Hydration of mechanically activated granulated blast furnace slag.” Metall. Mater. Trans. B, 36(6), 873–883.
Michaelis, W. (1907). The hardening process of hydraulic cements, Cement and Engineering News, Chicago, IL.
Richardson, I. G. (2008). “The calcium silicate hydrates.” Cem. Concr. Res., 38(2), 137–158.
Shaw, S., Clark, S. M., and Henderson, C. M. B. (2000). “Hydrothermal formation of the calcium silicate hydrates, tobermorite () and xonotlite : An in situ synchrotron study.” Chemical Geology, 167(1–2), 129–140.
Siauciunas, R., and Baltakys, K. (2004). “Formation of gyrolite during hydrothermal synthesis in the mixtures of CaO and amorphous or quartz.” Cem. Concr. Res., 34(11), 2029–2036.
Siddique, R., and Khan, M. I. (2011). Supplementary cementing materials, 1st Ed., Springer, Hardcover.
Taylor, H. W. F. (1977). The chemistry of cement, 2nd Ed., Thomas Telford, London.
Van Balen, K. (2005). “Carbonation reaction of lime, kinetics at ambient temperature.” Cem. Concr. Res., 35(4), 647–657.
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© 2012 American Society of Civil Engineers.
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Received: Sep 22, 2011
Accepted: Jan 23, 2012
Published online: Aug 15, 2012
Published in print: Sep 1, 2012
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