The QR codes are very useful component which are now being utilized extensively with the augmented reality (AR) technology in the U.S. construction industry. A project superintendent, subcontractor, architect, facilities team member, or other field personnel to scan one of the QR codes all through the campus by a smartphone or tablet computer at any time and quickly submerge themselves in the up-to-date, as-built 3D BIM model or 3D laser scan of that space.
If a contractor wish to check what's behind a wall? Just scan the QR code on the doorjamb in the room, point the mobile device's camera lens toward the wall, and the contractor will get an x-ray view of the wall assembly.