3d printing house - 3D printer can build a 2500 sq.ft house in just 24 hours

Scientists claim to have developed a revolutionary new giant 3D concrete printer that can build a 2500 square feet house in just 24 hours.The 3D printer, developed by Professor Behrokh Khoshnevis from the University of Southern California, could be used to build a whole house, layer by layer, in a single day.The giant robot replaces construction workers with a nozzle on a gantry, which squirts