WHAT’S LC3 ?

LC3 stands for Limestone Calcined Clay Cement. It is a combination of clinker, calcined clay, limestone and gypsum. The cement blend uses 50% clinker, 15% non-cement grade (high silica or high MgO content) limestone, 30% calcined low grade china clay (non-ceramic grade) from mines and 5% gypsum.

Journey from Research to Global Adoption

Proof of concept

  • Survey for required clay
  • First trial calcination
  • Lab scale blend

Proof of concept

  • First production trial
  • First house built with lC³
  • Demonstration on structures

research and application

  • Secind Trial Production by a Major Indian Producer
  • Performance evaluation
  •  

Research and application

  • First Pilot prodution by JK Lakshmi Cements
  • Applied Research
  •  

REsearch and application

  • Lab scale testing of clays in Malawi with an international producer
  • Trial calcination by another Indian major
  • Setting up LC³

research and application

  • Third pilot trial by an international major in Malawi
  • Feasibility testing of clays in India, Asia and African countries
  •  

Dissemination

  • Second pilot production by a major Indian producer
  • Feasibility studeis in India
  •  

Dissemination

  • Commercial LC³ production launched in Ivory Coast
  • Technical partnerships with equipment suppliers
  • Feasibility studies and standards development across Africa

Dissemination

  • BIS approval for LC³ standards in India
  • Feasibility studies in the Middle East & South Asia
  • Asia-Pacific partnership established

dissemination

  • LC³ standards in India IS181189
  • Feasibility studies in Middle East
  • TRC Africa formed

Dissemination

  • First commercial production of LC³ by JK Cement
  • First commercial usage by Lodha Group
  • First commercial usage by Jewar Airport Noida

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Strengths

Cost Saving

Saves up to 25% compared to OPC and PPC

Carbon Friendly

Reduces GHG emissions from the cement industry

Stronger

Develops ultimate strengths comparable to OPCs produced using the same clinker

More Durable

Produces denser microstructure concrete compared to OPC and PPC

Waste to Value

Opportunity to utilize low grade clay and limestone (dolomitic)

Energy Saving

Low temperature of calcination and softer nature of raw materials reduces grinding energy