Researchers at Nanyang Technological University (NTU) in Singapore have unveiled an advanced 3D concrete printing technology that captures and stores carbon dioxide. This innovative process incorporates CO2 into the building material, increasing the strength and durability of the resulting structures.
This method involves injecting a mixture of steam and carbon dioxide – both byproducts of industrial processes – directly into the concrete during printing. By embedding the CO2 into the material, the process effectively binds the greenhouse gas within the structure, preventing it from re-entering the atmosphere.
Initial tests have shown that concrete produced using this technique has superior mechanical properties, including greater strength, compared to conventional 3D printed concrete. This progress could lead to more resilient and sustainable construction practices and help the industry transition to greener building solutions.
Image source: Nanyang Technological University