RICHMOND, Va. — A robotic arm is printing concrete walls in 45 minutes — and Virginia Housing officials say the technology could be a key part of addressing the state’s housing affordability crisis.
At a Richmond warehouse, human hands mix the ingredients, but it is a robotic arm equipped with a specialized nozzle that constructs the walls with the precision of a 3D printer.
A process that would normally take several hours on a job site was reduced to just 45 minutes before a crowd gathered to address housing affordability…