ADDITIVE MANUFACTURING
Above: The modular nature of 3D printed parts facilitates easier disassembly. Image via Block Research Group.
material. These included a 100% recycled binder, and also demolition sand from the former project Striatus. Additionally, coarser sand used in the ink was sourced locally, further increasing the project’s circularity.
Below: Low-carbon concrete inks are addressing the environmental challenges associated with traditional construction techniques. Image via Incremental3D.
SHAPING THE FUTURE Advancements in 3D printing technology have opened new avenues for sustainable infrastructure development. By optimising material use, developing low-carbon concrete
inks, and enabling innovative structural designs, 3D printing addresses many of the environmental challenges associated with traditional construction methods. Combining funicular design and an arch in pure compression, the use of materials can be significantly reduced: by 35% for concrete and 50% for steel. Furthermore, a single material design allows for easier recycling and enabling circularity. As this technology continues to
evolve, it promises to play a crucial role in creating sustainable and resilient infrastructure for the future. The innovative techniques and materials being developed today are setting the stage for a new era of environmentally responsible construction, demonstrating that with the right approach, it is possible to significantly reduce the carbon footprint of our built environment.
Edelio Bermejo is Global Head of R&D at Holcim.
www.holcim.com
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