Dr. Kushal Adhikari - Assistant Professor of Civil Engineering at Alvernia University

Cement production is essential to modern infrastructure, yet it is also highly energy- and carbon-intensive. Significant thermal energy is required to produce clinkers, and additional electricity is consumed during grinding, processing, and material handling. Reducing the environmental impact of cement, therefore, requires approaches that address both emissions and material efficiency. 

This presentation will discuss an integrated approach to sustainable cement production that combines captured carbon dioxide (CO₂), nano-calcium carbonate (CaCO₃), and reduced clinker use. In the proposed approach, CO₂ captured from cement-plant operations is used as a feedstock to produce nano-CaCO₃ at or near the manufacturing site. The material can then be incorporated into cement systems to improve performance while lowering reliance on energy-intensive clinkers. 

The approach links carbon utilization with advanced materials and circular manufacturing. Producing nano-CaCO₃ on-site may reduce transportation and processing needs, while improved cement and concrete performance could extend infrastructure service life and lower the energy, materials, and costs associated with repair and replacement. 



Overall, this research presents a pathway to convert cement-plant CO₂ into a useful product, improve material efficiency, and support lower-carbon infrastructure. It also offers opportunities for regional manufacturing, industry collaboration, and broader transition toward a more efficient and sustainable energy economy.