Principal investigators: Yaghoob Farnam and Geetika Mishra
University: Drexel University
Industry partner: SusMaX Inc.
Drexel University and SusMaX Inc. are jointly proposing to develop a novel manufacturing technology to produce sustainable aggregate through CO₂ sequestration using Pennsylvania-based coal ash industrial wastes including alkaline waste ashes and flue gas desulfurization gypsum (FGDG). By leveraging these industrial wastes as key components and proposed CO₂ sequestration technology, this project aims to not only reduce waste disposal costs and mitigate the long-term environmental liabilities associated with their disposal, but also lower embodied carbon footprint of the construction industry. This approach will customize formulations of coal ash-FGDG and CO₂ to develop aggregates with enhanced physical and mechanical properties, providing significant advantages over conventional aggregates while offsetting the net embodied carbon footprint and minimizing energy requirements. This initiative supports sustainable construction practices and aligns with Pennsylvania's commitment to environmental responsibility and resource optimization, helping to create a more circular economy in the state.