Portland Slag Cement (PSC) - A Cement for durable construction
Highlights:
Hathi PSC is manufactured by inter-grinding high quality clinker, Granulated Slag and Gypsum. Our Portland Slag Cement is well accepted and appreciated for its premium quality.
Hathi PSC gives you a +4 advantage:
- Low heat of hydration - Less thermal cracks and suitable for mass concreting,
- Low co-efficient of permeability - Increasing corrosion resistance,
- Greater resistance to – aggressive chemicals in the environment like sulphate, alkali and acids,
Lower Permeability:
Concrete made with PSC has lower permeability due to formation of hydrates between clinker and slag grains, filling the pore space. It also prevents leaching of Calcium Hydroxide due to low permeability and converts it into additional strength contributing C-S-H gels.
Lower Heat Of Hydration (H-O-H):
PSC has lower heat of hydration compared to OPC/PPC leading to less thermal cracks. Workability retention is also enhanced. This makes it an ideal choice for Indian climate.
Comparison of heat generated in mass concrete with OPC, PPC and PSC concrete (Bamforth, 1980).
Applications:
- Concrete – reinforced and non-reinforced
- Mass concrete structures – dams and big foundations
- Water treatment plants and Sewage disposal works
- Marine structures like bridge, pile, wind-mill, jetty and ports
- Industrial structures exposed to highly aggressive chemical environment of ground water and natural soils
Advantages:
- Low heat of hydration leading to minimisation of thermal cracks.
- Low free lime due to secondary hydrated mineralogy leading to reduced leaching.
- Reduces permeability in concrete leading to corrosion prevention.
- Higher protection against sulphates and chlorides.
- Reduces alkali silica reaction.
- Higher surface area leading to improved workability.
