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INDIAN SCENARIO

IIT Guwahati develops Concrete 3D Printer that reduces concrete usage by 75%

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Concrete 3D Printer
Above: IIT Guwahati campus/Image Source: IIT Guwahati

Researchers at IIT Guwahati jointly developed a concrete 3D printer with Belgaum-based Deltasys E-Forming, that uses construction waste to print furniture. The concrete 3D printer is capable of printing components up to 1 m long, 1 m wide and 1 m tall.

According to the statement issued by IIT-Guwahati, the researchers used specially-developed printable concrete containing industrial wastes as binders to build 3D printed furniture with a seating height of 0.4 m, a width of 0.4 m, and an arch-shaped support. The entire unit was printed layer by layer at an 80 mm/s speed, with each layer having a 10 mm height. After the unit was printed, it was covered with moist gunny bags for seven days to cure before being used.

The press release stated, “Traditionally, these structures were mould casted which requires more concrete material, labour, and formwork preparation. However, with 3D concrete printing, optimised designs are printed with 75 per cent less concrete and without the need of mould.”

IIT-Guwahati director TG Sitharam said 3D printing of concrete can be a technological solution for reducing carbon footprint in the construction industry. “From Indian context, techno-economic analysis must be carried out that take into account not only the environmental sustainability but also aspects relating to cost, quality, labour, and maintenance associated with 3D printing.”

– T. G. Sitharam, Director at IIT Guwahati

He added that the researchers aim to design high-performance concrete mixes made from industrial wastes for printing such complex structures, said professor Biranchi Panda of the Department of Mechanical Engineering. “We showcased how material-efficient structures can be produced in our lab scale 3D printer.


About Manufactur3D: Manufactur3D is an online magazine on 3D Printing. Visit our Indian Scenario page for more updates on 3D Printing News from India. To stay up-to-date about the latest happenings in the 3D printing world, like us on Facebook or follow us on LinkedIn and Twitter.

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About author
Abhimanyu Chavan is the founder of Manufactur3D Magazine. He writes on Additive Manufacturing technology, interviews industry leaders, shares industry insights, and expresses his thoughts on the latest developments in the industry. You can follow him on LinkedIn, Twitter and Instagram.
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