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Portland Composite Cement (PCC)

Portland Composite Cement (PCC) is a blended cement made by mixing Ordinary Portland Cement (OPC) with additives like fly ash, slag, or limestone. It offers enhanced durability, improved workability, and reduced environmental impact. PCC is ideal for general construction, marine structures, and projects requiring sustainable and long-lasting performance.

Product Specification

Compressive Strength:

  • At 3 days: 16 MPa (minimum)
  • At 7 days: 22 MPa (minimum)
  • At 28 days: 33 MPa (minimum)

Fineness:

  • Blaine fineness typically ranges from 300-350 m²/kg, ensuring improved workability and strength.

Setting Time:

  • Initial Setting Time: Minimum 30 minutes
  • Final Setting Time: Maximum 600 minutes

Soundness:

  • The soundness of OPC should not exceed 10 mm (as per the Le Chatelier method).

Chemical Composition:

  • Pozzolanic materials and/or slag: 15–35%
  • Lime (CaO): 60–67%
  • Silica (SiO2): 20–25%
  • Alumina (Al2O3): 4–8%

Features:

  • Enhanced durability against chemical attacks.
  • Reduced heat of hydration, ideal for mass concreting projects.
  • Eco-friendly and sustainable, utilizing industrial by-products.
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