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Polish clayey raw materials for the production of ceramic tiles

Published online by Cambridge University Press:  09 July 2018

P. Wyszomirski*
Affiliation:
AGH University of Science and Technology, Faculty of Material Science and Ceramics, Department of Technology of Ceramics and Refractories, Mickiewicza 30, 30-059 Kraków, Poland
K. Galos
Affiliation:
AGH University of Science and Technology, Faculty of Material Science and Ceramics, Department of Technology of Ceramics and Refractories, Mickiewicza 30, 30-059 Kraków, Poland Mineral and Energy Economy Research Institute of the Polish Academy of Sciences, Wybickiego 7, 31-261 Kraków, Poland
*

Abstract

Development of the Polish ceramic industry over the last ten years has resulted in a sharp increase in demand for basic raw materials, especially for ceramic clays – both white- and light-firing as well as red-firing varieties. Polish sources of white-firing clays are rather scarce. Their production is based on Santonian sandy-clayey sediments of the North-Sudetic Trough (Lower Silesia, SW Poland). Light-firing varieties occur mainly in Lower Jurassic sediments on the northern margin of the Holy Cross Mountains (central Poland). Red-firing well-sintering clays of Triassic age are known in the northern margin of the Holy Cross Mountains as well as in the Cracow-Silesian Monocline.

The white-firing Santonian clays contain mainly highly-ordered kaolinite (~50%) and quartz (~30%) with minor amounts of illite. Their grain-size median ranges between 1.9 and 2.5 μm. They show moderate plasticity (bending strength after drying at 1.7–1.9 MPa) and weak sinterability (water absorption after firing ~12%), but greater lightness after firing (L parameter ~86%). The light-firing Jurassic clays are kaolinitic-illitic in character, with a variable content of quartz. Kaolinite is represented by the low-ordered variety. The grain-size median is also variable, ranging between 1.1 and 3.4 μm. They show good plasticity (bending strength after drying 2.6–2.8 MPa), good or very good sinterability (water absorption after firing <6%) but moderate lightness (L ~79%).

Triassic red clays are highly polymineralic, with illite, kaolinite, smectite, chlorite and mixed-layered minerals occurring in variable amounts. Their specific features are: large hematite content (5–12%), commonly small CaO content (<0.5 wt.%) and an extremely small organic matter content (⩽0.1 wt.%). Their grain-size median usually varies between 2 and 3 mm. Using such clays, sintered ceramics (e.g. stoneware tiles) are obtained after firing in the temperature range 1150–1200ºC.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2009

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References

de la Torre, J., Lores, M.T., Bastida, J. & Monton, J.B. (1996) Oxidation of organic matter in powdered clays at temperatures lower than dehydroxylation temperature of clay minerals. British Ceramic Transactions, 95, 194198.Google Scholar
Galán, E., Aparicio, P., Gonzalez, I. & La Igleasia, A. (1994) Influence of associated components of kaolin on the degree of disorder of kaolinite as determined by XRD. Geologia Carpathica — Series Clays, 45, 5975.Google Scholar
Galos, K., editor (2008) Properties of selected light-firing clays in aspect of optimization of raw materials input for domestic production of gres porcellanato tiles. Publishing House of the Mineral and Energy Economic Research Institute, Polish Academy of Sciences, Krakow, Poland, 134 pp. (in Polish).Google Scholar
Galos, K. & Lewicka, E. (2008) Manufacturing shift to central Europe: trends in minerals consumption in the ceramic industry in Poland. Proceedings of 19th Industrial Minerals International Congress & Exhibition, Athens, Greece, 30th March-2nd April 2008. Google Scholar
Galos, K. & Wyszomirski, P. (2006) Clayey raw materials for the domestic industry of the fine and technical ceramics. Part I: Domestic white- and light-firing clayey raw materials. Materialy Ceramiczne, 58, 5863 (in Polish, with English abstract).Google Scholar
Górniak, K. (1997) The role of diagenesis in the formation of kaolinite raw materials in the Santonian sediments of the North-Sudetic Trough (Lower Silesia, Poland). Applied Clay Science, 12, 313328.CrossRefGoogle Scholar
Hoffman, E.X. (1992) Instrumental neutron activation in geoanalysis. Journal of Geochemical Exploration, 44, 297319.Google Scholar
Kubler, B. (1966) La cristallinité de Fillite et les zones tout á fair supérieures du métamorphisme. Pp. 105121 in: Etages Tectoniques, Colloque de Neuchâtel 1966. University of Neuchâtel, Baconnière, Switzerland.Google Scholar
Marynowski, L. & Wyszomirski, P. (2008) Organic geochemical evidences of early-diagenetic oxidation of the terrestrial organic matter during the Triassic arid and semi arid climatic conditions. Applied Geochemistry, 23, 26122618.CrossRefGoogle Scholar
Ney, R. & Smakowski, T., editors (2008) Minerals Yearbook of Poland 2002-2006. Publishing House of the Mineral and Energy Economic Research Institute, Polish Academy of Sciences, Krakow, Poland, 529 pp.Google Scholar
Piccard, M.D. (1971) Classification of fine-grained sedimentary rocks. Journal of Sedimentary Petrology, 41, 179195.Google Scholar
Stoch, L. (1962) The mineralogical characteristics of kaolinite clays from the vicinity of Boleslawiec (Lower Silesia). Prace Geologiczne/Geological Transactions, 7, 131 pp. (in Polish, with English abstract).Google Scholar
Stoch, L. (1963) Investigations of kaolinite ceramic clays. Prace Geologiczne/Geological Transactions, 17, 91 pp. (in Polish, with English abstract).Google Scholar
Stoch, L. (1974) Clay Minerals. Geological Publishing House, Warsaw, 503 pp. (in Polish).Google Scholar
Wyszomirski, P. & Galos, K. (2005) Triassic red clays of Tarnowskie Góry-Kępno region in respect of their usefulness for the Polish ceramic industry. Gospodarka Surowcami Mineralnymi/Mineral Resources Management, 21, 149166 (in Polish, with English abstract).Google Scholar
Wyszomirski, P. & Galos, K. (2007) Clayey raw materials for the domestic industry of the fine and technical ceramics. Part III: Triassic red clays. Materialy Ceramiczne, 59, 102110 (in Polish, with English abstract).Google Scholar
Wyszomirski, P. & Muszynski, M. (2007) Mineralogical and technological characteristics of interlayers and nests in the Triassic red clays of the northern margin of the Holy Cross Mts. Gospodarka Surowcami Mineralnymi/Mineral Resources Management, 23, 528 (in Polish, with English abstract).Google Scholar
Wyszomirski, P., Gacki, F., Łukasik, W. & Partyka, J. (2000) Clays of Żarnów deposit (Poland) as an industrial raw material for the production of ceramic tiles. Ceramika/Ceramics, 60, 447454.Google Scholar