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Clay Tomasovce Dark is a plastic ceramic raw material applicable in the manufacture of ceramic buildings materials. Its characteristic qualities are high binding power, wide thermal interval of body sintering and high resistance of the sintered body to acids. It is characterized by refractory properties.
Delivery possibilities
Clay is mined selectiv and stocked on separated homogenous stockpiles into the quarry. Clays are always delivered in bulk directly from the quarry.
| INFORMATIVE CHARACTERISTICS | |
| Total shrinkage after firin at 1250 °C | |
| Absorption capacity after firing at 1250 °C | |
| Colour after firing at 1250 °C | |
|
GRANULOMETRIC COMPOSITION |
|
| Grain content | average in weight % |
| grains over 7,0 mm | 0 |
| grains 2,0 - 7,0 mm | 0,0 - 0,4 |
| grains 0,2 - 2,0 mm | 1,3 - 6,4 |
| grains 0,09 – 0,2 mm | 1,8 - 8,7 |
| grains 0,063 – 0,09 mm | 2,2 - 9,6 |
| grains under 0,063 mm | 90 - 98 |
| MINERALOGICAL COMPOSITION | |
| Substantional Compnents | Quartz, Kaolinite, illite, montmorillonite |
| Secondary components | Charred remains of plants less than 1 % |
| CHEMICAL COMPOSITIONS | |
| Components in weight % | |
| Loss by anneal | 10,5-14,7 |
| SiO2 | 47,3 - 56,1 |
| TiO2 | 1,2 - 1,7 |
| Al2O3 | 26,9 - 33,0 |
| Fe2O3 | 2,5 - 3,0 |
| CaO | 0,3 - 0,5 |
| MgO | 0,5 - 1,2 |
| K2O | 0,7 - 2,0 |
| Na2O | 0,3 - 0,9 |
| ISO | 166 - 172 |
The above mentioned data are to be considered as informative.
