Portland Pozzolana Cement is manufactured by blending pozzolanic materials, OPC clinker, and gypsum either grinding them together or separately. Today Portland Pozzolana Cement is widely in demand for industrial and residential buildings, roads, dams, and machine foundations.
Pozzolana is an important ingredient in PPC which is commonly used in the form of:
- Fly ash
- Volcanic ash
- Silica fumes
- Calcined clay
PPC is resistant to harsh water attacks and prevents the formation of calcium hydroxide at the time of cement setting and hydration. It withstands aggressive gases, thermal cracks, wet cracking, etc. The BIS quality specifications for Pozzolana materials used in PPC have been mentioned below:
- Fly ash - IS 3812:1981
- Calcined clay - IS 1344:1981
PPC is used in heavy load infrastructure and constructions such as marine structures, hydraulic structures, mass concreting works, plastering, masonry mortars, and all applications of ordinary Portland cement. One of the top Indian brands of Portland Pozzolana is 'Shudh Cement' manufactured by Tata Chemicals Limited.
Shudh cement has 5 percent of the market share and is available abundantly in Gujarat, penetrating all 3 - primary, secondary, and tertiary markets. Some of the other big names in the Portland Pozzolana manufacture are Ultratech, Ambuja, ACC cements, Star Cement, and Birla group.
Portland Pozzolana Cement is highly popular in India and with many cement plants setting up jetties for transportation, initial costs would gradually decrease as well.
