IIT Madras researchers invent cement with low carbon emissions
Cement

IIT Madras researchers invent cement with low carbon emissions

A Sustainability Impact Assessment of Limestone Calcined Clay Cement (LC3) in a project financed by the Swiss Agency for Development and Cooperation reveals a decrease of roughly 40% in CO2 emissions and 20% less energy for production when compared to standard Portland cement.

Simultaneously, research was conducted by IIT Madras, IIT Delhi, TARA (Development Alternatives) New Delhi, UCLV (Central University "Marta Abreu" of Las Vilas) in Cuba, and EPFL (Swiss Federal Institute of Technology Lausanne) in Switzerland, with funding from the Swiss Agency for Development and Cooperation, India, has shown that the concrete produced with this cement exhibits excellent strength and durability characteristics.

Limestone Calcined Clay Cement (LC3) is cement that combines Portland cement clinker, calcined kaolinitic clay, and limestone with gypsum. Because the manufacturing of clinker entails the burning of limestone, the amount of cement clinker is limited to only 50 per cent, implying a significant reduction in CO2 emissions.

The clay used in LC3 is usually a non-ceramic grade raw material extracted from China clay mines including the overburden, while the limestone used in the blend can be from low-grade sources that are not suitable for cement manufacture.

Sustainability impact assessment has clearly demonstrated a reduction of nearly 40 per cent of CO2 emissions, and about 20 per cent lower energy for the production of LC3 as compared to ordinary Portland cement.

A Sustainability Impact Assessment of Limestone Calcined Clay Cement (LC3) in a project financed by the Swiss Agency for Development and Cooperation reveals a decrease of roughly 40% in CO2 emissions and 20% less energy for production when compared to standard Portland cement. Simultaneously, research was conducted by IIT Madras, IIT Delhi, TARA (Development Alternatives) New Delhi, UCLV (Central University Marta Abreu of Las Vilas) in Cuba, and EPFL (Swiss Federal Institute of Technology Lausanne) in Switzerland, with funding from the Swiss Agency for Development and Cooperation, India, has shown that the concrete produced with this cement exhibits excellent strength and durability characteristics. Limestone Calcined Clay Cement (LC3) is cement that combines Portland cement clinker, calcined kaolinitic clay, and limestone with gypsum. Because the manufacturing of clinker entails the burning of limestone, the amount of cement clinker is limited to only 50 per cent, implying a significant reduction in CO2 emissions. The clay used in LC3 is usually a non-ceramic grade raw material extracted from China clay mines including the overburden, while the limestone used in the blend can be from low-grade sources that are not suitable for cement manufacture. Sustainability impact assessment has clearly demonstrated a reduction of nearly 40 per cent of CO2 emissions, and about 20 per cent lower energy for the production of LC3 as compared to ordinary Portland cement.

Next Story
Infrastructure Transport

Mumbai-Ahmedabad Bullet Train Set to Launch by 2028

India’s first bullet train is set to revolutionize high-speed travel along the western corridor, with the Mumbai-Ahmedabad high-speed rail project aiming for a 2028 launch. This announcement marks a major milestone in India’s infrastructure goals, as it promises to reduce travel time between the two economic hubs from eight hours to just three.Spanning a planned 508-kilometre stretch, the corridor stands as a flagship example of Indo-Japanese collaboration in technology and engineering. Once operational, the train is expected to transform intercity mobility and place India among the select..

Next Story
Infrastructure Transport

Mumbai-Gandhinagar Train Service Enhances Passenger Capacity

The Mumbai Central–Gandhinagar Capital Vande Bharat Express has increased its passenger capacity by adding four additional AC chair car coaches to meet the growing commuter demand on one of India’s busiest business corridors. This upgrade, effective from 11 May, raised the train’s seating capacity from 1,128 to 1,440 passengers, allowing it to serve 936 more passengers daily in both directions. The increase was described as a practical measure to accommodate the surging demand on the busy Mumbai–Ahmedabad–Gandhinagar route, which regularly operates at over 150 percent seat occupancy...

Next Story
Infrastructure Urban

Delhi Plans 12 Sewage Plants to Clean Najafgarh Drain Efficiently

Delhi’s ambitious plan to improve the water quality of the Yamuna River has gained significant momentum as the Delhi Jal Board (DJB) has begun work on 12 new sewage treatment plants (STPs) aimed at reducing the volume of untreated sewage being discharged from the Najafgarh Drain.This initiative forms part of the ongoing efforts to clean the Yamuna and restore the river’s health, which has long been a critical environmental issue for the national capital. Given the alarming pollution levels in the Yamuna, experts and officials consider this project a vital step toward addressing the persist..

Advertisement

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Advertisement

Talk to us?