Calcium carbonate is critical to the construction industry, both as a building material on its own, and as an ingredient of cement. It contributes to the making of mortar used in bonding bricks, concrete blocks and stones, roofing shingles, rubber compounds and tiles. The mineral decomposes to form carbon dioxide and lime which are important in making steel, glass and paper. Because of its antacid properties, calcium carbonate is used in industrial settings to neutralize acidic conditions in both soil and water.
Specifications
| Grade | 310 | 415 | 520 | S 310 | S 415 | S 520 | ||
| Physical Properties | ||||||||
| Whiteness | 98 | 97 | 97 | 97 | 97 | 97 | ||
| Brightness | 98 | 98 | 98 | 98 | 97 | 97 | ||
| Loose B.D gm/ml | 0.58 | 0.6 | 0.8 | 0.8 | 0.85 | 1 | ||
| Oil Absorption | 20 | 18 | 16 | NA | NA | NA | ||
| Color Tone | Cream White | White | White | White | White | Light Blue White | ||
| Partical Size | ||||||||
| D 97 | 11 Microns | 15 | 19 | 11.5 | 15 | 20 | ||
| D 50 | 2.5 | 3.5 | 5 | 2.5 | 3.5 | 5 | ||
| Residue on 500 # | Nil | Nil | Nil | Nil | Nil | Nil | ||
| Coated / Uncoated | Uncoated | Uncoated | Uncoated | Coated | Coated | Coated | ||
| Chemical Properties | ||||||||
| Caco3 | 96% | 96% | 95% | 96% | 96% | 95% | 0.95 | |
| Sio2 | 2% | 2% | 3% | 2% | 2% | 3% | 0.03 | |
| Mgco3 | 0.5% | 0.5% | 0.5% | 0.5% | 0.5% | 0.5% | 0.005 | |
| Specific Gravity | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | |
