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2012 | 14 | 4 | 53-56

Article title

Fly ash as the component of composites materials


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The fly ash from powerplant can be compared, due to its genesis, chemical and mineralogical composition with the natural volcanic glasses and minerals generated in the process of devitrification in situ. Its quality is comparable to non-metallic alumosilicate raw materials that are commercially used in building and ceramic industry. Two possibilities of fly ash utilization as the most bulk waste produced by anthropogenic activity were examined. The way of fly ashes utilization in the modeling of mixtures for the high refractory mullite corundum materials synthesis was examined. In this experiment 95.5% conversion of the input components of fly ash and Al additive in the ratio 1:1 on the mullite and corundum was obtained.









Physical description


1 - 12 - 2012
12 - 01 - 2013


  • Slovak Academy of Sciences, Institute of Geotechnics, Watsonova 45, 043 53 Kosice, Slovakia
  • Slovak Academy of Sciences, Institute of Geotechnics, Watsonova 45, 043 53 Kosice, Slovakia
  • VŠB – Technical University of Ostrava, ICT – Institute of Clean Technologies for Mining and Utilization of Raw Materials for Energy Use 17. listopadu, 708 33 Ostrava-Poruba, Czech Republic
  • Polish Academy of Sciences, Mineral and Energy Economy Research Institute, ul. J. Wybickiego 7, 31-261 Kraków, Poland


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  • 7. Hankyr, V. & Kutzendorfer, J. (2008). Technology of ceramics. Silica society, Praha, 387, [in Czech].
  • 8. Jung, J.S., Park, H.C. & Stevens, R. (2001). Mullite ceramics derived from coal fly ash. Journal of Materials Science Letters, 20 (12), 1089-1091. DOI: 10.1023/A:1010934728570.[Crossref]
  • 9. Mukhopadhyay, T.K., Ghosh, S., Ghosh, J., Ghatak, S. & Maiti, H.S. (2010). Effect of fly ash on the physico-chemical and mechanical properties of a porcelain composition. Ceramics International, 36 (3), 1055-1062. DOI:10.1016/j. ceramint.2009.12.012.[Crossref]
  • 10. Gregerova, M. (2004). Technolithology, Institute of geological Sciences, Faculty of Science, Masaryk University Brno, 74.

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