CHAMPAIGN, Ill.—Marines from Marine Corps Systems Command and 7th Engineer Support Battalion along with engineers from the U.S. Army Corps of Engineers Construction Engineering Research Laboratory conducted the first known 3D concrete printing peration with a three-inch print nozzle at the CERL headquarters in early August in Champaign, Illinois.

The CERL, MCSC and 7th ESB team tested a new continuous ixer and three-inch pump for this print operation after successfully rinting multiple structures, including a barracks and a bridge using, a two-inch pump and hose.

“This is really the first time we’ve ever printed something large with this system,” said Megan Kreiger, project lead for the Automated Construction of Expeditionary Structures—or ACES—team at CERL. “It is experimental right now and we are trying to push the technology forward. This is the first time in the world anyone has really tried using these larger bead systems with these larger pumps.”

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