Abstract
This paper deals with synthesis and assessment of the hydraulicity of C4A3Cr, analog phase C4A3S to , relevant to the phase chemistry and properties of sulfoaluminate cements. C4A3Cr, synthesized at 1250 °C is well crystallized phase, latently hydraulic, with hydration accelerated in the presence of C4A3S, or CS. Calorimetric curves show reciprocal influence of sulfate and chromate phase in hydration of C4A3S-C4A3Cr system. The total heat expressed at hydration is nearly the same for all specimens, but the rate of heat evolution depends on the ratio of C4A3S/C4A3Cr phases. X-ray diffraction pattern and DTA curves showed that, increasing content of C4A3Cr in hydrating mixture results in a coexistence of two types of ettringite (chromate and sulfate ettringite) hydrogarnet, gibbsite and monosulfate.
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References
C. P. Hewlett, Lea's Chemistry of Cement and Concrete, 4th Ed. 1998, p. 421.
N. Sherman, J. Beretka, L. Santoro and G. L. Valenti, Cem. Concr. Res., 25 (1995) 113.
S. Sahu, Ceramics-silikate, 38 (1994) 191.
S. Sahu and J. Majling, Cem. Concr. Res., 23 (1993) 1331.
F. P. Glasser and L. Zhang, Cem. Concr. Res., 31 (2001) 1881.
K. Wieczorek-Ciurowa, J. Therm. Anal. Cal., 62 (2001) 655.
R. Beradi, R. Cioffi and L. Santoro, Waste Management, 17 (1997) 535.
D. Peters and F. A. Hummel, J. Am. Ceramics. Soc., 59 (1976) 270.
T. N. Olesová, P. V. Zozulja and B. E. Razumovskij, Tsement, 3 (1982) 14.
J. Havlica and S. Sahu, Cem. Concr. Res., 22 (1992) 671.
P. E. Halstead, A. E. Moore., J. Appl. Chem., 12 (1962) 413.
E. Smrčková, M. T. Palou and V. Tomková, J. Thermal Anal., 46 (1996) 597.
H. Poellman, S. Auer, H. J. Kuzel and R. Wenda, Cem. Concr. Res., 23 (1993) 422.
H. Poellman, S. Auer, H. J. Kuzel and R. Wenda, Cem. Concr. Res., 20 (1990) 941.
J. Bensted, Cem. Concr. Res., 21 (1991) 679.
J. Bensted and S. P. Varma, Cement Technology, 23 (1971) 73.
J. Bensted and S. P. Varma, Silicate Industries, 37 (1972) 315.
B. Robert Perkins and D. Carl Palmer, Cem. Concr. Res., 31 (2001) 983.
B. Robert Perkins and D. Carl Palmer, Applied Geochemistry, 15 (2000) 1203.
D. Damidot and F. P. Glasser, Cem. Concr. Res., 23 (1993) 221.
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Palou, M., Majling, J. Hydraulic activity of C4A3Cr in presence of C4A3S. Journal of Thermal Analysis and Calorimetry 71, 367–373 (2003). https://doi.org/10.1023/A:1022823003120
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DOI: https://doi.org/10.1023/A:1022823003120