Corps, Marines team cites 3D concrete printing first in high volume demo

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Marine Corps Systems Command and 7th Engineer Support Battalion staff joined U.S. Army Corps of Engineers Construction Engineering Research Laboratory (CERL) colleagues last month to test a 3D concrete printing operation with a late model volumetric mixer feeding a 3-in. nozzle. The Champaign, Ill., demonstration was staged to fabricate a field-grade bunker, and followed Marine Corps units’ barrack and bridge structure printing with a 2-in. nozzle assembly.

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