AbstractAbout AuthorsReferences
A possibility to expand the raw materials base for manufacturing magnesia binders and building materials due to the use of wastes of mineral processing plants and refractory produc- tions is considered. Methods for assessing the suitability of such wastes on the example of dumps of OAO «Grupp Magnezit», the city of Satka, adopted as a raw material have been developed and a methodological scheme of technology of binders production was proposed. The study includes fractioning of rocks and an analysis of their mineralogical composition with the help of X-ray phase and derivatographic analyses. Magnesites of the 3rd and 4th grade from the dumps of the plant are adopted as raw materials. As a result, features of the distribution of admixtures in rocks depending on the fraction composition was established; the technology of binder production, which includes the combined method of burning with the use of additive-intensifiers that makes it possible to exclude the presence of potentially harmful impurities, is proposed.
G.F. AVERINA, Engineer,
T.N. CHERNYKH, Doctor of Sciences (Engineering),
A.A. ORLOV, Candidate of Sciences (Engineering),
L.Ya. KRAMAR, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
T.N. CHERNYKH, Doctor of Sciences (Engineering),
A.A. ORLOV, Candidate of Sciences (Engineering),
L.Ya. KRAMAR, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
South Ural State University (National Research University) (76, Lenina Avenue, Chelyabinsk, 454080, Russian Federation)
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2. Magnesian Super fields «Maglit». Stroitel’nye Materialy [Construction Materials]. 2000. No. 3, pp. 30–31. (In Russian).
3. Miryuk O.A. Magnesian compositions of oxychloride cur- ing. Tsement i ego primenenie. 2003. No. 4, pp. 38–40. (In Russian).
4. Monolithic seamless floors on magnesian knitting. Stroitel’nye Materialy [Construction Materials]. 1998. No. 6, pp. 31. (In Russian).
5. Istomin M.Y. Effective wall materials based on magnesia-dolomite cement and industrial wastes. Cand. Diss. (Engineering). Ulan-Ude. 1998. 145 p. (In Russian).
6. Kuzmenkov M.I., Bahir E.N. Production of wood-mineral composite material on a magnesia astringent of caustic dolomite. Energy-saving in the production of cement and other cementitious materials: Proceedings of the Interna- tional Conference. Belgorod. 1997. Vol. 1, pp. 83–87. (In Russian).
7. Matkovic V., Rogich I. Modified magnesia cement (Sorel cement). The Sixth International Congress of cement chemistry. Moscow. 1976. Vol. 2, pp. 94–100. (In Russian).
8. Shelikhov N.S. Features of the formation of the active phase of MgO in dolomitic cement. Stroitel’nye Materialy [Construction Materials]. 2008. No. 10, pp. 32–33. (In Russian).
9. Marchik E.V. Production of dolomite and magnesia cement foam on its basis. Cand. Diss. (Engineering). Minsk. 2010. 121 p. (In Russian).
10. Kuzmenkov M.I., Marchik E.V., Melnikova R.Ya. The intensification of the process of decarbonising dolomite salt additives. Work under GKPNI “Chemical reagents and materials”. Minsk: Belarusian State Technological University. 2009. 192 p. (In Russian).
11. Ivanov A.E. Development of bases of technology recon- stituted magnesia binders of dolomite. Cand. Diss. (Engineering). Ivanovo. 1996. 117 p. (In Russian).
12. Vaivade A.Ya., Hoffman B.E., Carlson K.P. Dolomitovye vyazhushchie veshchestva [Dolomite binders]. Riga: Nauka. 1958. 240 p.
13. Nosov A.V. Dolomite astringent construction application and materials on its basis. Cand. Diss. (Engineering). Chelyabinsk. 2014. 118 p. (In Russian).
14. Averina G.F., Chernikh T.N., Kramar L.Ya. Impact factor factional heterogeneity magnesia raw materials on the properties of the resulting binder. Proceedings of the XIII International Conference “Trends in the development of science and education”. Samara. 2016, pp. 5–7. (In Russian).
15. Vayvade A.Ya. Magnezial’nye vyazhushchie veshchestva [Magnesium binders]. Riga: Nauka. 1971. 315 p.
16. Beruto D.T., Vecchiattini R., Giordani M. Effect of mix- tures of H2O (g) and CO2 (g) on the thermal half decomposition of dolomite natural stone in high CO2 pressure regime. Thermochimica Acta. 2003. Vol. 404. Iss. 1–2, pp. 25–33.
17. Noll W. Uber den halbgebrannten Dolomit. Angewandte Chemie. 1950. Vol. 62. Iss. 23/24, pp. 567–572. (In Germany).
18. Haul R.A., Heystek H. Differential thermal analysis of the dolomite decomposition. American Mineralogist. 1952. Vol. 37. pp. 166–179.
19. Hedvall J.A. Uber die thermische Zersetzung von Dolomit. Zeitschrift fur anorganische und allgemeine Chemie. 1953. Vol. 272. Iss. 1–4, pp. 22–24. (In Germany).
20. Chernykh T.N., Nosov A.V., Kramar L.Ya. Dolomite mag- nesium oxychloride cement properties control method during its production. IOP Conference Series: Materials Science and Engineering. 2015. Volume 71. Conference 1. http://iop- science.iop.org/article/10.1088/1757-899X/71/1/012045/ pdf.
For citation: Averina G.F., Chernykh T.N., Orlov A.A., Kramar L.Ya. Revealing possibilities to use magnesia wastes of mineral processing plant for manufacturing binders. Stroitel’nye Materialy [Construction materials]. 2017. No. 5, pp. 86–89. DOI: https://doi.org/10.31659/0585-430X-2017-748-5-86-89. (In Russian)