2)BIS: 1489-1991 certified Cement 3)Corrosion or sulphate resistant 4)Best suited for Masonry works like brick/ block walls construction, floor and wall Tiling, plastering as chances of developing cracks are less due to low heat of hydration. 5)PPC is blended cement manufactured by grinding together OPC Clinker (63-83%) and fly ash (15-35%) along with gypsum (3-5%) or by intimately blending OPC and fly ash.