Principal investigators: Arvin Ebrahimkhanlou and Yaghoob Farnam
University: Drexel University
Industry partner: X-Hab 3D Inc.
This project aims to advance sustainable concrete additive manufacturing (CAM) through innovative CO₂ sequestration technology in partnership with Pennsylvania’s CAM company, X-Hab 3D Inc. We will design and manufacture a robotic CO₂ injection nozzle to quantitatively investigate and optimize carbon sequestering by controlling an “inside-to-outside” direction for concrete carbonization. The idea is to create stable carbonization bubbles that lock CO₂ as calcium carbonate within the materials. We will quantitatively investigate the impact of injection amount, depth, spacing, and temperature on the time-dependent rate of CO₂ absorption and concrete strength. This process not only reduces the embodied carbon of CAM but also strengthens the concrete. The collaboration provides students with valuable hands-on experience in advanced CAM technology, helping to retain skilled talent in Pennsylvania’s manufacturing sector. By linking academic expertise with industry needs, the project supports the commonwealth’s goals and leadership for sustainable innovation, workforce development, and environmental responsibility.