Portland Pozzolana Cement | Manufacturing | Process ...
Portland Pozzolana cement (PPC) is manufactured by the intergrinding of OPC clinker with 10 to 25 percent of pozzolanic material (as per the latest amendment, it is 15 to 35%). A pozzolanic material is essentially a siliceous or aluminous material which while in itself contains no cementitious properties, which will, in finely segregated form ...