IIT Madras Startup Builds ‘India’s First’ 3D Printed House


Tvasta Manufacturing Solutions, a start-up founded by alumni of IIT Madras, founded India's first 3D printed house. The team printed the structure using a specialty concrete they had developed to print large 3D structures in short periods of time. They say the mix is ​​based on ordinary portland cement, which has a lower water to cement ratio. Although concrete is the main material for construction projects, it cannot be recycled and requires a lot of energy to mix and transport. The team's efforts to use technology to print the house with ordinary portland cement can "overcome the pitfalls of conventional building."

On its website, the company says, "We have the opportunity to overcome the pitfalls of conventional building through 3D printing." This advancement will open doors for all types of research and development in the construction industry. "

The first structure, a one-story house, is 600 square meters and was built using local concrete 3D printing technology and in collaboration with the Terwilliger Center for Innovation in Shelter by Habitat for Humanity. This technology can help build a house in five days, the institute said.

The house was inaugurated by Finance Minister Nirmala Sithraman. At the videoconferencing start, she said India definitely needs solutions that don't take much time, adding that the latest "technology allows you to build a 3D printed house in 5 days".

“Conventional living requires timing, materials, logistics, material handling and so on. However, if this technology can produce houses in different locations in five days, building 100 million houses by 2022 would not be a huge challenge, ”the finance minister said.

In a blog post on its website, Tvasta Manufacturing Solutions said it had developed its own mix of materials, which is an extrudable concrete made from cement, sand, geopolymers and fibers. The final mix of materials was made by mixing the raw materials in a large funnel. "During 3D printing, the structure was specially designed to be hollow to allow cabling and installation precautions without damaging the wall," the blog post added.

The use of such local materials would also reduce the need to transport concrete over long distances, thereby reducing the environmental impact.

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