Construction 3D PrintingLarge Format

COBOD printer builds a concrete two-story 3D printed building in India

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COBOD, a company that specializes in 3D printing buildings, printed a concrete two-story building in India made by L&T Construction, a first for the AM industry. COBOD’s expertise as a construction specialist is evidenced by its partnership with GE Additive, through which it is 3D printing bases for 200-meter-tall wind turbines. The company also printed 3.5 houses in four days. Its efforts averaged eight square meters an hour on this occasion.

3D printed building in India

L&T Construction is the construction arm of the twenty-one-billion-dollar technology, engineering & construction conglomerate Larsen & Toubro. It is India’s largest construction company and ranked among the world’s top thirty contractors. L&T Construction has recently 3D printed India’s first two-story building (G+1) of sixty-five square meters using a concrete mix developed by their in-house team. This mix is based on locally available raw materials and methods for integrating reinforcement with the 3D printed concrete in an open-to-sky environment.

COBOD’s 3D printing system successfully completed the building using this mix. The new building is located close to Chennai and is the second building L&T has made with COBOD’s printer, the first being a one-floor twenty-two-square-meter building with a bedroom, hall and kitchen.

Henrik Lund-Nielsen, the founder and general manager of COBOD, said that:

L&T Construction’s project marks a huge step forward for our industry, on a global scale. Not only is the project showing that more and more conventional construction companies are adopting 3D printing, but the 3D printing of a real concrete made by L&T themselves is significant, as this helps to drive down the cost even further. It is really impressive how L&T developed the 3D printable concrete and applied integral horizontal and vertical reinforcement in the building.

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Adam Strömbergsson

Adam is a legal researcher and writer with a background in law and literature. Born in Montreal, Canada, he has spent the last decade in Ottawa, Canada, where he has worked in legislative affairs, law, and academia. Adam specializes in his pursuits, most recently in additive manufacturing. He is particularly interested in the coming international and national regulation of additive manufacturing. His past projects include a history of his alma mater, the University of Ottawa. He has also specialized in equity law and its relationship to judicial review. Adam’s current interest in additive manufacturing pairs with his knowledge of historical developments in higher education, copyright and intellectual property protections.

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