AbstractAbout AuthorsReferences
Features of physical-chemical transformations connected with the burning of opoka-like raw materials are considered as applied to the manufacture of wall ceramic products. Six stages with characteristic physical-chemical features are highlighted within the temperature interval of 20о C – 1100–1200о C: a free-water removal stage, stage of removal of opal silica water and oxidation of organic admixtures, stage of dehydration of clayey materials; stage of solid-phase sintering; stage of liquid-phase sintering, and stage of fusion. The mechanism of decrystallization of opal silica of opokas into cristobalite was determined. Basic driving factors of this process are revealed; main of them are temperature and the presence of alkaline oxides. On the basis of works conducted, recommendations on the optimal regime of burning, when manufacturing wall ceramic products on the basis of opoka-like raw materials, and on purposeful formation of the ceramic stone structure, are made
V.D. KOTLYAR, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
K.A. LAPUNOVA, Candidate of Sciences (Engineering)
K.A. LAPUNOVA, Candidate of Sciences (Engineering)
Rostov State University of Civil Engineering (162, Sotcialisticheskaya Street, Rostov-na-Donu, 344022, Russian Federation)
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5. Kotlyar V.D., Lapunova K.A. Technological features of a opoka as raw materials for wall ceramics. Izvestiya vuzov. Stroitel’stvo. 2011. No. 11–12. pp. 25–31. (In Russian).
6. Kotlyar V.D., Ustinov A.V., Kovalev V.Yu., TerekhinaYu.V., Kotlyar A.V. Ceramic stones of compression formation on the basis of opoka and waste of coal preparation. Stroitel’nye Materialy [Construction Materials]. 2013. No. 4, pp. 44–48. (In Russian).
7. Ivanyuta G.N., Kotlyar V.D., Kozlov G.N., Lapunova K.A. Phase transformations at heat treatment of siliceous breeds. Sbornik nauchnikh trudov RGSU. Rostovon-Don: RGSU. 2005, pp. 37–42. (In Russian).
8. Plyusnina I.I., Maliaev M.N., Efremov G.A. Research of cryptocrystalline kinds of silicon dioxide by an IKspectroscopy method. Izvestiya AK SSSR. Seriya Geologicheskaya. 1970. No. 9, pp. 78–83. (In Russian).
9. Salakhov A.M., Salakhova R.A., Il’icheva O.M., Morozov V.P., Hacrinov A.I., Nefed’ev E.S. Influence of structure of materials on properties of ceramics. Vestnik Kazanskogo tekhnologicheskogo universiteta. 2010. No. 8, pp. 343–349. (In Russian).
2. Ashmarin G.D., Iluhina L.G., Iluhin V.V., Kyrnosov V.V., Sinianskii V.I. Innovative projects of production of constructive and heateffective ceramic materials from local raw materials. Stroitel’nye Materialy [Construction Materials]. 2015. No. 4, pp. 57–59. (In Russian).
3. Kotlyar V.D. Classification siliceous the opoks of breeds as raw materials for production of wall ceramics. Stroitel’nye Materialy [Construction Materials]. 2009. No. 3, pp. 36–39. (In Russian).
4. Ashmarin G.D., Lastochkin V.G., Iluhin V.V., Minakov A.G., Tat’ianchikov A.V. Innovative technologies of highly effective ceramic construction products on the basis of siliceous breeds. Stroitel’nye Materialy [Construction Materials]. 2011. No. 7, pp. 28–30. (In Russian).
5. Kotlyar V.D., Lapunova K.A. Technological features of a opoka as raw materials for wall ceramics. Izvestiya vuzov. Stroitel’stvo. 2011. No. 11–12. pp. 25–31. (In Russian).
6. Kotlyar V.D., Ustinov A.V., Kovalev V.Yu., TerekhinaYu.V., Kotlyar A.V. Ceramic stones of compression formation on the basis of opoka and waste of coal preparation. Stroitel’nye Materialy [Construction Materials]. 2013. No. 4, pp. 44–48. (In Russian).
7. Ivanyuta G.N., Kotlyar V.D., Kozlov G.N., Lapunova K.A. Phase transformations at heat treatment of siliceous breeds. Sbornik nauchnikh trudov RGSU. Rostovon-Don: RGSU. 2005, pp. 37–42. (In Russian).
8. Plyusnina I.I., Maliaev M.N., Efremov G.A. Research of cryptocrystalline kinds of silicon dioxide by an IKspectroscopy method. Izvestiya AK SSSR. Seriya Geologicheskaya. 1970. No. 9, pp. 78–83. (In Russian).
9. Salakhov A.M., Salakhova R.A., Il’icheva O.M., Morozov V.P., Hacrinov A.I., Nefed’ev E.S. Influence of structure of materials on properties of ceramics. Vestnik Kazanskogo tekhnologicheskogo universiteta. 2010. No. 8, pp. 343–349. (In Russian).
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