Manufacturing of Portland Cement produces upto 1.3 tonnes of CO2 emissions per tonne of cement. With the focus on climate change mitigation and ambitious targets of countries to achieve net-zero, the cement industry needs to adopt a multi-pronged approach – improving energy efficiency, switching to low carbon fuels, reducing clinker to cement ratio and adopting new age technologies such as carbon capture, LC3, etc.

Granulated Blast Furnace Slag and Fly Ash are effective raw materials to reduce clinker to cement ratio. They are derived from industrial waste streams, and hence help reduce CO2 emissions by 0.7-0.9 tonnes per tonne of cement. Their environmental benefits remain strong even over long distance transport by sea, and moreover, they provide significant technical benefits in high performance concrete applications while improving quality and consistency of cement.

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