Conclusions
Phase analyses by x-ray methods, petrography, mass-spectrometry, chemical analyses, and paper chromatography were used in an investigation of the composition of the phosphate bond of a nonshrinking Gunite intended for the guniting of the roof of open-hearth furnaces during the downtime for repairs. The phosphate bond is a complex mixture of ortho-, pyro-, poly-, and cyclic phosphates. The amount of orthophosphates in the bond increases appreciably, while that of the chain (¯n < 20) and cyclic phosphates decreases with an increase in the heat-treatment temperature.
It was established that the added sodium polyphosphate reacts more effectively with the magnesite component of the Gunite.
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Yu. A. Pirogov, A. V. Boltyanskii, M. M. Khil'ko, et al., Ogneupory, No. 7, 27–32 (1971).
Yu. A. Pirogov, A. V. Boltyanskii, F. B. Prikhozhan, et al., Metallurg. Gornorud. Prom., No. 2, 42–44 (1972).
J. G. Yount, Am. Ceram. Soc. Bull.,47, No. 3, 259–263 (1968).
P. F. Konovalov, N. P. Shteiert, A. N. Ivanov-Gorodov, et al., Physicomechanical and Physicochemical Investigations of Cement [in Russian], Gosstroiizdat, Leningrad-Moscow (1960).
Yu. A. Pirogov, L. A. Babkina, Z. A. Lugovaya, et al., Ogneupory, No. 3, 46–49 (1973).
H. Grunze and E. Thilo, in: Paper Chromatography of Condensed Phosphates [in German], Berlin (1955), pp. 12–25.
A. V. Steblevskii, I. D. Alikhanyan, and O. N. Gorgaraki, Zh. Neorg. Khim.,19, No. 6, 1450–1453 (1974).
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Translated from Ogneupory, Vol. 18, No. 8, pp. 40–47, August, 1977.
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Pirogov, Y.A., Boltyanskii, A.V., Prokudin, V.Y. et al. Sodium polyphosphate bond of nonshr inking magnesite — Chromite gunite. Refractories 18, 479–485 (1977). https://doi.org/10.1007/BF01288258
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DOI: https://doi.org/10.1007/BF01288258