US army 3D prints 512-sq-ft barracks using concrete AM tech developed in collaboration with NASA

The U.S. Army Construction Engineering Research Laboratory (CERL), based in Champaign, Illinois, has announced the successful construction of a 3D printed concrete barracks spanning an impressive 512 square feet. The concrete structure was made possible by 3D printing technology developed by CERL in partnership with NASA.

from 3ders.org - http://www.3ders.org