PSC Cement — When Durability Matters Most
Portland Slag Cement (PSC) is manufactured by grinding blast furnace slag with Portland cement clinker. It offers unique properties that make it the top choice for extreme environments.
Key Properties of PSC
- Sulphate Resistance: Up to 5x more resistant than OPC
- Low Heat of Hydration: Prevents thermal cracking in mass concrete
- High Durability: Longer service life in aggressive environments
- Alkali-Silica Resistance: Prevents expansion and cracking
- Better Workability: Smoother finish and easier placement
Ideal Applications
- Marine structures — ports, jetties, sea walls
- Underground construction — tunnels, basements, foundations
- Sewage and water treatment plants
- Bridges, dams, and flyovers
- Industrial floors exposed to chemicals
- Any structure in contact with sulphate-rich soil or water
PSC vs OPC for Infrastructure
While OPC provides higher early strength, PSC develops comparable strength over 28 days and exceeds OPC strength at 90+ days. For infrastructure projects where long-term durability matters more than early-age strength, PSC is the superior choice.
IS Standard
PSC must comply with IS 455:2015. Always verify the BIS certification mark on every bag to ensure genuine quality.