AbstractAbout AuthorsReferences
This paper substantiates the relevance of recycling ice mining waste and using it as the main raw material for the manufacture of ceramic wall materials. The main components of coal waste pits, their chemical and mineralogical compositions, their negative impact on the environment, and the lack of a unified, generally accepted classification for them are discussed. The results of laboratory studies are presented, as well as the specific features of pressing finely dispersed waste pit products. The dependence of their compressibility on the particle size distribution and molding moisture content of the press powder under different pressing pressures is examined. The influence of the particle size distribution, pressing pressure, and molding moisture content of press powders made from man-made waste pit products on the density and air shrinkage of green samples is studied. Particles no larger than 0.63 mm in size demonstrated the highest processability in terms of compactibility. Their good compressibility and suitability for use in the production of wall ceramics were noted. Optimal ranges for pressing pressure, molding moisture content, and particle size distribution were established. A study of the influence of molding powder moisture on the compaction coefficient revealed the optimal process parameters: a moisture content range of 6 to 8% and a pressing pressure of 40 MPa. The causes of defects in samples with varying pressing pressure and molding moisture content of the molding powders were substantiated. Their high efficiency in the production of ceramic products was demonstrated.
Kh.S. YAVRUYAN, Candidate of Sciences (Engineering)
Don State Technical University (1, Gagarina Square, Rostov-on-Don, 344010, Russian Federation)
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https://doi.org/10.46698/VNC.2025.14.75.001
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https://doi.org/10.31659/0585-430X-2025-839-9-31-38
9. Kotlyar V.D., Kozlov A.V., Kotlyar A.V., Terekhova Yu.V. Features of stone-like clay rocks of the Eastern Donbass as raw materials for the production of wall ceramics. Vestnik MGSU. 2014. No. 10, pp. 95–105. (In Russian). EDN: SWJDZR
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11. Vyshar O., Stolboushkin A., Rakhimova G. et al. Study of the properties of overburdened rocks from coal mining: overburden – as a raw material in the production of ceramic bricks. International Journal of Geomate. 2023. Vol. 25. No. 107. EDN: NREFPQ. https://doi.org/10.21660/2023.107.3771
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13. Yavruyan Kh.S., Kotlyar V.D., Gaishun E.S., Okhotnaya A.S. Phase transformations happening at roasting of screenings from the processing waste heaps of Eastern Donbass. Stroitel’nye Materialy [Construction Materials]. 2019. No. 4, pp. 3–7. (In Russian). EDN: DBEUIE. https://doi.org/10.31659/0585-430X-2019-769-4-3-7
14. Kotlyar V., Yavruyan K. Thin issues products of processing waste heaps as raw materials for ceramic wall products. MATEC Web of Conferences. International conference on modern trends in manufacturing technologies and equipment. Sevastopol. 11–15 September 2017. Iss. 129. 05013. EDN: XNLMDU. https://doi.org/10.1051/matecconf/201712905013
15. Kongar-Syuryun Ch.B., Khairutdinov A.M., Dengaev A.V., Abdulrakhman B. Study of mechanical characteristics of a backfill composite created on the basis of coal mining waste. Ugol’. 2025. No. 3 (1191), pp. 145–148. (In Russian). EDN: EXEIAP. https://doi.org/10.18796/0041-5790-2025-3-145-148
16. Yavruyan K., Kotlyar V. Estimation of chemical and mineral composition, structural features, and pre-firing technological properties of waste coal heaps for ceramic production. Buildings. 2024. Vol. 14. 1905. EDN: HVPVGQ.
https://doi.org/10.3390/buildings14071905
17. Beskopylny A.N., Yavruyan Kh.S., Gaishun E.S., Kotlyar A.V. Gaishun A.S. High-performance ceramic stones from waste disposal sites in Eastern Donbass. Stroitel’nye Materialy [Construction Materials]. 2020. No. 8, pp. 16–21. (In Russian). EDN: JRRLEO. https://doi.org/10.31659/0585-430X-2020-783-8-16-21
2. Stolboushkin A.Yu., Isterin E.V., Fomina O.A. Use of thermal power engineering waste to reduce the average density of ceramic wall materials with a matrix structure. Stroitel’nye Materialy [Construction Materials]. 2024. No. 4, pp. 13–19. (In Russian). EDN: TPRBIP. https://doi.org/10.31659/0585-430X-2024-823-4-13-19
3. Roshchupkina I.Yu., Abdrakhimova E.S., Abdrakhimov V.Z. Phase composition of ceramic materials based on waste from the fuel and energy complex. Khimicheskaya Tekhnologiya. 2022. Vol. 23. No. 7, pp. 325–334. (In Russian). EDN: QWNITK. https://doi.org/10.31044/1684-5811-2022-23-7-325-334
4. Safronov E.G., Silinskaya S.M., Naryzhnaya N.Yu., Abdrakhimov V.Z. Environmental feasibility of ash and slag recycling in the production of wall materials and optimization of ceramic masses based on technical indicators. Ugol’. 2021. No. 6 (1143), pp. 44–49. (In Russian). EDN: EUFOSO. https://doi.org/10.18796/0041-5790-2021-6-44-49
5. Razorenov Yu.I., Yatsenko E.A., Goltsman B.M. Construction materials based on man-made waste from the mining industry and solid fuel energy – a modern environmental trend. Gorniy Zhurnal. 2021. No. 11, pp. 95–98. (In Russian). EDN: THOKAG. https://doi.org/10.17580/gzh.2021.11.13
6. Artemov I.A. Mineralogical and petrographic zoning of burnt mountain dumps of coal mines (Eastern Donbass). Geologiya i Geofizika Yuga Rossii. 2025. Vol. 15. No. 2, pp. 155–165. (In Russian). EDN: HXCHFR.
https://doi.org/10.46698/VNC.2025.14.75.001
7. Kotlyar V.D., Yavruyan Kh.S. Wall ceramic products based on finely dispersed products of waste heap processing. Stroitel’nye Materialy [Construction Materials]. 2017. No. 4, pp. 38–41. (In Russian). EDN: YNESDH
8. Yavruyan H.S. Study of technological properties of coal waste heaps for organizing the production of wall ceramics on their basis. Stroitel’nye Materialy [Construction Materials]. 2025. No. 9, pp. 31–38. (In Russian). EDN: TSPCEQ.
https://doi.org/10.31659/0585-430X-2025-839-9-31-38
9. Kotlyar V.D., Kozlov A.V., Kotlyar A.V., Terekhova Yu.V. Features of stone-like clay rocks of the Eastern Donbass as raw materials for the production of wall ceramics. Vestnik MGSU. 2014. No. 10, pp. 95–105. (In Russian). EDN: SWJDZR
10. Rakhimova G., Stolboushkin A., Vyshar O., et al. Strong structure formation of ceramic composites based on coal mining overburden rocks. Journal of Composites Science. 2023. Vol. 7. No. 5. 209. EDN: JLJFVB. https://doi.org/10.3390/jcs7050209
11. Vyshar O., Stolboushkin A., Rakhimova G. et al. Study of the properties of overburdened rocks from coal mining: overburden – as a raw material in the production of ceramic bricks. International Journal of Geomate. 2023. Vol. 25. No. 107. EDN: NREFPQ. https://doi.org/10.21660/2023.107.3771
12. Seregin A.I. Processing of coal slurries into marketable products by unconventional physicochemical treatment. Diss… Candidate of Sciences (Engineering). Moscow. FSUE IGI. 2009. 183 p. (In Russian). EDN: NQQZTZ
13. Yavruyan Kh.S., Kotlyar V.D., Gaishun E.S., Okhotnaya A.S. Phase transformations happening at roasting of screenings from the processing waste heaps of Eastern Donbass. Stroitel’nye Materialy [Construction Materials]. 2019. No. 4, pp. 3–7. (In Russian). EDN: DBEUIE. https://doi.org/10.31659/0585-430X-2019-769-4-3-7
14. Kotlyar V., Yavruyan K. Thin issues products of processing waste heaps as raw materials for ceramic wall products. MATEC Web of Conferences. International conference on modern trends in manufacturing technologies and equipment. Sevastopol. 11–15 September 2017. Iss. 129. 05013. EDN: XNLMDU. https://doi.org/10.1051/matecconf/201712905013
15. Kongar-Syuryun Ch.B., Khairutdinov A.M., Dengaev A.V., Abdulrakhman B. Study of mechanical characteristics of a backfill composite created on the basis of coal mining waste. Ugol’. 2025. No. 3 (1191), pp. 145–148. (In Russian). EDN: EXEIAP. https://doi.org/10.18796/0041-5790-2025-3-145-148
16. Yavruyan K., Kotlyar V. Estimation of chemical and mineral composition, structural features, and pre-firing technological properties of waste coal heaps for ceramic production. Buildings. 2024. Vol. 14. 1905. EDN: HVPVGQ.
https://doi.org/10.3390/buildings14071905
17. Beskopylny A.N., Yavruyan Kh.S., Gaishun E.S., Kotlyar A.V. Gaishun A.S. High-performance ceramic stones from waste disposal sites in Eastern Donbass. Stroitel’nye Materialy [Construction Materials]. 2020. No. 8, pp. 16–21. (In Russian). EDN: JRRLEO. https://doi.org/10.31659/0585-430X-2020-783-8-16-21
For citation: Yavruyan Kh.S. Study of pre-fire properties of man-made products from processed coal waste piles. Stroitel'nye Materialy [Construction Materials]. 2026. No. 5, pp. 27–34. (In Russian). https://doi.org/10.31659/0585-430X-2026-846-5-27-34