Corps, Marines unit proves high volume, large bead 3D concrete printing

Source: Marine Corps Systems Command, U.S. Army Corps of Engineers Construction Engineering Research Laboratory, Champaign, Ill.

Marine Corps Systems Command and 7th Engineer Support Battalion staff joined U.S. Army Corps of Engineers Construction Engineering Research Laboratory (CERL) colleagues earlier this month to test a 3D concrete printing operation with a late model volumetric mixer feeding a 3-in. nozzle. The demonstration was aimed fabricating a bunker and followed barrack and bridge structure printing with a 2-in. nozzle-equipped assembly. 

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