Nantes, France – Academics at the University of Nantes have used 3d-print and rigid PU to build the structure of a house with four bedrooms in under 54 hours. The house cost around £176,000 ($232,000) to build and is around 20% cheaper than other construction techniques. It covers 95m2 and is built for a family of five.
The local council; a housing association and a team from the University of Nantes led by Benoit Furet collaborated on the project.
Talking to the BBC Furet said: ‘For 2000 years there hasn’t been a change in the paradigm of the construction process. We wanted to sweep the whole construction process away.’
Talking to the BBC Furet said: ‘For 2000 years there hasn’t been a change in the paradigm of the construction process. We wanted to sweep the whole construction process away.’
Image credit: BBC
Although the construction process is unusual, the house is designed in the usual way by a team of architects. Their plans are programmed into a 3D printer. Once the data is loaded, the printer is taken to the site. The printer lays down both sides of the walls in layers of rigid polyurethane. Cement is poured into the gap between the wall skins. This makes the walls strong enough to support the roof.
Image credit: BBC
The single-storey house is completed with doors, windows and a roof. Finishing with these components took four months.
Furet added that it could be possible to reduce construction costs by a quarter in five years and by 40% in 10 to 15 years through economies of scale and as the 3d-print technology naturally becomes cheaper with time.
Source: UTECH
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