Applications of 53 Grade OPC
PPC is manufactured by inter grinding OPC clinker with 15-35% of pozzolanic material. Pozzolanas are essentially siliceous or aluminous material, which in itself possesses no cementitious properties, which will be in finely divided form and in the presence of moisture react with calcium hydroxide, liberated in the hydration process, at ordinary temperature, to form compounds possessing cementitious properties. The pozzolanic materials generally used are fly ash or calcined clay. PPC produces less heat of hydration and offers greater resistance to attack of aggressive environment, gives long-term strength and enhances the durability of structures.
Send Enquiry