COBOD Printer Builds a Concrete Two-story 3D Printed Building in India

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, where COBOD prints bases for 200-meter-tall wind turbines. The company has also printed 3.5 houses in four days. Its efforts averaged eight square meters an hour on this occasion.

COBOD’s most recent achievement and its past successes have caused the company’s general manager, Henrik Lund-Nielsen, to be recognized by 3D Natives as one of 2020s ten most influential people in the industry.

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 newly celebrated 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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Author: Adam Strömbergsson