Guwahati: The innovators of IIT Guwahati have constructed a 3D printed security post using a special M40 grade sustainable concrete containing industrial wastes, fibers and chemical admixtures. This is part of it's G20 initiatives.

Under the mentorship of Assistant Professor Dr. Biranchi Panda a team consisting of Dodda Srinivas, Dhrutiman Dey and Akshay Sahu started a startup Stratify 3D Private Limited. They have developed this digital technology in line with the Aatmanirbhar Bharat vision Prime Minister Narendra Modi.

This automated and innovative technology is ready to provide customised houses in India in less construction time with controlled quality.

The security post was built in collaboration with the institute infrastructure, Planning and Management team and is claimed to be sustainable in terms of construction practice, and material composition. Ithas a carpet area of 85 sqft and consists of 56 modules. For the first time, the team printed custom-designed tetrahedron modules having overhang features of 22 degrees and embossed features up to 40 mm.

In order to print the overhanging features, a special sustainable concrete mix design (patent pending) was prepared with different combinations of accelerator and retarder that meets the demanding rheological and mechanical performance requirements of 3D printed structure.

Panda said that in this project, they are addressing aesthetic potential of digital construction technology while utilizing sustainable construction materials.

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