India: Noida International Airport (NIA) has become India's first large-scale project to utilise limestone calcined clay cement (LC3), a low-carbon alternative to traditional cement. In a statement, concessionaire Yamuna International Airport Private Limited (YIAPL) said LC3 was used extensively in the construction of the airport.
Developed for more than 10 years by researchers at IIT Delhi, IIT Madras, Swiss Development Cooperation, École Polytechnique Fédérale de Lausanne (Switzerland), Universidad de las Villas (Cuba), and Technology and Action for Rural Advancement (TARA), LC3 emits up to 40% less CO2 than conventional Portland cement. It costs 25% less to produce, uses low-grade limestone and clays and requires lower energy for manufacturing while delivering comparable strength.