The US 1st Marine Logistic Group (1st MLG) used an Automated Construction of Expeditionary Structures (ACES) printer (3D printer) to build, among other structures, a footbridge out of layers of concrete. Though, this technology is not deployable yet. Read full news at this link...
data-original-height="617" data-original-width="925" height="266" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhNSwsO5MJc3S3xmWUIZPaZPAcz1_7JQ-WlF-J8XU0w8WxU-RX9QRoc9MnA0eQpVNPWxE5lN_JXpIfIKT9l6Khw3JHT4dWgwRFAf_t4MctP6xOpT2d2mveUcuwDsZ6eyeIkrWONN8BqN-Gp/s400/US+Marines+testing+combat+engineering+applications+of+3D+printing.jpg" width="400">
A Marine with 1st Marine Logistics Group walks across a concrete footbridge during a 3D concrete printing exercise at Camp Pendleton, Calif. (Picture source : Marine Corps)
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