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The Clay Tepličany is a plastic ceramic raw material used mostly for manufacture of building ceramics (floor-tiles, wall-tiles, stoneware and similar products). Its characteristic qualities are high strength after drying and sintering during firing. It can as well be applied in foundries for preparation of synthetic moulding mixtures for dry-sand moulds used for producing castings from grey cast iron.
Delivery possibilities
Clay is delivered in bulk. Clay is mined in a quarry and is transpoted to the stockpile in Kostoľany nad Hornádom. Loading and delivery is organised on that stockpile during the year (except of winter months 12, 1, 2). Loading can be postponed or abolished during any time of the year because of extremely bad weather conditions (longterm heavy reins i.e.).
| INFORMATIVE CHARACTERISTICS | |
| Total shrinkage after firing at 1180 °C | 12,7 |
| Absorption capacity after firing at 1180 °C | 6,2 weight % |
| Colour after firing at 1180 °C | grey |
| GRANULOMETRIC COMPOSITION | |
| Grein content | Average in weight % |
| over 7,0 mm | 0 |
| grains 2,0 - 7,0 mm | 0,1 |
| grains 0,2 - 2,0 mm | 0,5 |
| grains 0,09 – 0,2 mm | 0,6 - 6,5 |
| grains 0,063 – 0,09 mm | 0,3 - 3,5 |
| grains under 0,063 mm | 91 - 99 |
| MINERALOGICAL COMPOSITION | |
| Substantional components | bigger grains of quartz |
| Secondary components |
limonit and yarosite concretions illite kaolinite montmorillonite fine quartz |
| CHEMICAL COMPOSITION | |
| Components in weight % | |
| Loss by anneal | 5,65 |
| SiO2 | 66,35 |
| TiO2 | 1,1 |
| Al2O3 | 20 |
| Fe2O3 | 2,25 |
| CaO | 1,05 |
| MgO | 0,95 |
| K2O | 2,1 |
| Na2O | 0,25 |
