www.elgran-stone.com / Quarries / Krupskiy quarry
Company Elgran is the unique owner of present quarry and deposit.Quarry characteristics
| The reserve of granite blocks | 751 300 | m³ |
| Type of a granite | Karmin | |
| Colour | grayish-pink, grayish-red | |
Physical-mechanical granite properties | ||
| Density | 2,64 2,77 | |
| Volumetric weight | 2,610 2,670 | Kg/m³ |
| Water absorption | 0,14 0,38 | % |
| Porosity | 0,8 - 3,7 | % |
| Loss in weight during evaporation process | 0,49 - 0,76 | g/cm² |
| Factor of softening | 0,80 0,97 | |
| Abradability | 0,15 - 0,31 | g/cm² |
Strength at compression | ||
| In an air-dry condition | 1,212 2,190 | Kgs/cm² |
| In the water-sated condition | 1,043 1,800 | Kgs/cm² |
Frost resistance freezing at 50 cycles | ||
| Strength at compression | 870 1,500 | Kgs/cm² |
| Loss in weight | 0,5 - 6,5 | % |
| Loss of durability | 4,5 - 20,0 | % |
| Mark on frost resistance | ฬะว-50 | |
Mineralogical structure | ||
| Plagioklaz | 20,0 - 80,0 | % |
| Biotit | 1,0 - 5,0 | % |
| Quartz | 10,0 - 40,0 | % |
| Zircon, peach | are present | |
Chemical compounds | ||
| SiO2 | 68,91 - 74,68 | % |
| MgO | 0,34 - 2,85 | % |
| Al2O3 | 13,36 - 15,43 | % |
| FeO | 0,94 - 3,21 | % |
| Fe2O3 | 2,45 - 5,59 | % |
| TiO2 | 0,32 - 0,69 | % |
| Na2O | 2,59 - 3,14 | % |
Granite blocks of all deposits of LLC Elgran correspond to state standard of Ukraine (DSTU B.V.2.7-59-97).
