AbstractAbout AuthorsReferences
Results of the study of the porous structure of ceramic matrix composites on the basis of the slime part of tailings of iron ores beneficiation by methods of mercury porometry, optical and scanning electronic microscopy are presented. It is established that high values of flexural strength and frost resistance of a product are connected with peculiarities of formation of the matrix structure of ceramic brick when using waste as an aggregated filler and activated loam as a tie as well as introducing the additive-flux into the composition of charge. It is revealed that closed pores of a rounded shape are formed in granules, a boundary layer, formed of solidified melt, has its own developed porous structure and creates, at the macro-level, loopy texture of the ceramic material due to outlining of granules by concentric chain of macro-pores having the elongated form. It is established that macro-pores are filled, partially or fully, with a glass-crystal substance which is formed as a result of outlet of a pyroplastic phase into the inner space of pores that provides the significant increase in the frost resistance of wall ceramics.
O.A. FOMINA, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.Yu. STOLBOUSHKIN, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.Yu. STOLBOUSHKIN, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
Siberian State Industrial University (42, Kirov Street, Novokuznetsk, 654007, Russian Federation)
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2. Kotlyar V.D., Ustinov A.V., Kovalev V.Y. Ceramic stones of compression moulding on the basis of gaizes and coal preparation waste. Stroitel’nye Materialy [Construction Materials]. 2013. No. 4. pp. 44–48. (In Russian).
3. Gurieva V.A., Prokofieva V.V. Structural and phase features of building ceramics based on technogenic magnesia raw materials and low-grade clay. Stroitel’nye Materialy [Construction Materials]. 2014. No. 4. pp. 55–57. (In Russian).
4. Knigina G.I., Tatski L.N., Kucherova E.A. Sovremennyie fiziko-himicheskie metodyi issledovaniya stroitelnyih materialov. Termicheskiy analiz. Metodyi izucheniya poristoy strukturyi. [Modern physical and chemical methods of investigation of building materials. Thermal analysis. Methods of study of the porous structure]. Novosibirsk. INEI. 1981. 81 p.
5. Pavlov V.F. Physical and chemical processes during the fast firing and their regulation. Keramicheskaya promyishlennost. Sat. Scien. tr. Institute-ESM. Moscow: 1982. Vol. 2, pp. 30–45. (In Russian).
6. Stolboushkin A.Y., Ivanov A.I., Storozhenko G.I., Urazov S.I. Obtaining frost-resistant ceramic bricks of moist pressing from industrial waste. Stroitel’nye Materialy [Construction Materials]. 2011. No. 12, pp. 4–7. (In Russian).
7. Patent RF 2500647. Syirevaya smes dlya izgotovleniya stenovoy keramiki i sposob ee polucheniya [The raw material mixture for the ceramic wall production and method for its preparing]. Stolboushkin A.Y., Storozhenko G.I., Ivanov A.I., Berdov G.I., Stolboushkina O.A. Declared 20.04.2012. Published 10.12.2013. Bulletin No. 34. (In Russian).
8. Plachenov T.G., Kolosentsev S.D. Porometriya [Porosimetry]. Leningrad: Himiya. 1988. 175 p.
9. Wilson S.J., Stacey M.H. The porosity of aluminum oxide phases derived from well-crystallized boehmite: correlated electron microscope, adsorption, and porosimetry studies. J. Colloid Interface Sci. 1981. Vol. 82. No. 2, pp. 507–517. (In Russian).
10. Stolboushkin A.Y., Ivanov A.A., Druzhinin S.V. Peculiarities of the pore structure of wall ceramic materials based on coal wastes. Stroitel’nye Materialy [Construction Materials]. 2014. No. 4, pp. 46–51. (In Russian).
11. Everett D.H. Manual of Symbols and Terminology for Physicochemical Quantities and Units: Appendix II: Definitions, terminology and symbols in colloid and surface chemistry – part 1: Colloid and surface chemistry. Pure Appl. Chem. 1972. No. 31, pp. 577–638.
12. Tihov S.F., Fenelonov V.B., Sadyikov V.A. Porous Fe2O3/Al ceramics obtained by oxidation aluminum powder under hydrothermal conditions, followed by thermal dehydration. The composition and characteristics of composites. Kinetics and Catalysis. 2000. Vol. 41. No. 6, pp. 10–13. (In Russian).
13. Karnauhov A.P. Adsorbtsiya. Tekstura dispersnyih i poristyih materialov [Adsorption. The texture of dispersed and porous materials]. Novosibirsk: Nauka.1999. 470 p.
For citation: Fomina O.A., Stolboushkin A.Yu. Formation of Rational Porous Structure of Wall Ceramics from Slimy Iron-Ore Tailings. Stroitel’nye Materialy [Construction Materials]. 2015. No. 12, pp. 14-19. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2015-732-12-14-19