Army Researchers Refine 3D-Printed Concrete Barracks

U.S. Army Corp. of Engineers' researchers, leading a team that recently completed the 3D printing of 9.5-ft-tall reinforced concrete walls for a 32-ft x 16-ft deployable barracks, are setting their sights on a future project--3D printing of concrete roof beams--even before they have put the precast concrete lid on the printed walls.