Tvasta Manufacturing Solutions, a start-up founded by alumni from IIT Madras, has made what it claims to be the first 3D printed house in India. The team printed the structure using special concrete they had developed to print large-scale 3D structures over short periods of time. They say the mixture is made from regular Portland cement, which has a lower water-to-cement ratio. Although concrete is the primary material typically used in construction projects, it cannot be recycled and requires a lot of energy to mix and transport. So the team’s effort to use the technology to print the house using regular Portland cement can “overcome the pitfalls of conventional construction.”
On its website, the company states, “We have the ability to overcome the pitfalls of conventional construction through 3D printing,” adding, “This breakthrough will open doors for all kinds of research and development in the world of construction. construction.”
Its first structure, a single-story house, measures 600 square feet and was built using indigenous concrete 3D printing technology and in collaboration with the Terwilliger Center for Innovation in Shelter at Habitat for Humanity. This technology can help build a house in five days, the institute said.
The house was inaugurated by Minister of Finance Nirmala Sithraman. Speaking at the launch via video conference, she said India definitely needs solutions that don’t require a lot of time, adding the latest “technology to build a 3D printed house in 5 days”.
“Conventional housing requires time, material, logistics, material transport, etc. But if this technology can produce homes in different locations in five days, it wouldn’t be a big challenge to build 100 million homes by 2022, ”the finance minister said.
In a blog post on its website, Tvasta Manufacturing Solutions said it has developed its own material blend, which is an extrudable concrete made from cement, sand, geopolymers and fibers. He prepared the final material mix by mixing the raw materials in a large hopper. “When 3D printing, the structure was specially designed hollow to allow arrangements for wiring and plumbing without damaging the wall,” the blog added.
The use of these local materials would also reduce the need to transport concrete over long distances, thus reducing the environmental impact.