Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate(CaCO3).
Uses Of Limestone
• It is largely used for roadbeds (crushed) and building constructions. Also it is widely used for cement manufacture.
• Limestone is a producer of quicklime and slaked lime.
• It
is widely used for the production of Portland cement and mortar.
• Limestone is burnt to create lime, along with other raw materials ash and sand. Together, they form a product called clinker. Clinker is then mixed
with gypsum and crushed to form a powdery mixture.
• Limestone is also used for glass making.
• The minerals such as calcite and dolomite found with limestone are greatly used in the process of manufacture of
various products like paper, detergent, baking soda, textiles, glass, etc.
• Limestone is also used in toothpastes. It acts as a filler and white pigment. The minerals found in limestone are also used in pharmaceuticals,
fertilizers, paint, cosmetic products, etc.
| Specifications | Manufactured Traditional Kilns |
|---|---|
| % CaCO3 | 92 – 95 |
| % MgCO3 | 2.50 (max.) |
| % Silica | 1.50 (max.) |
| % Fe2O3 | 0.2 (max.) |
| % Others | 0.6 |
| Size | 0 – 6 mm/ 6 -25 mm/ 25 -50 mm |
| Packing | Loose |
