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LIME STONE : Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms. Limestone has numerous uses: as a building material, an essential component of concrete (Portland cement). The high grade limestone is having very low silica content and is very much required for steel plants and other industries.
Cement grade : - Cement grade –(10-40MM)
CaO: 53% Min
MgO : 1% Min
SiO2 : 2% Min
Al2O3 : 0.40% Min
Fe2O3 : 0.30% Min
Phosphorous : 0.1%
Under size & Oversize combined together 10% Max.