Hundreds of thousands of bridges are deteriorating across the United States, and only some of them will benefit from conventional repair methods. In an effort to bolster bridge safety and avoid ...

How it works is, the bridge's building blocks were created using a 3D printer, which extruded a cement-based mixture in layers to built up the blocks' structure, following an exact computer-made plan.

It may sound like a pop band, but μ-WAAM is actually a 3D printing technique for making small metal parts from the NOVA University Lisbon. Of course, WAAM stands for wire arc additive manufacturing, a ...

As a US Marine Corps combat engineer serving in Iraq, Jim Monroe used MacGyver-like hacks to repair mine rollers. Meant to detonate and clear mines, these heavy studded wheels are mounted on the ...

The big picture: According to the American Society of Civil Engineers, more than half of the 623,218 bridges in the US are in a state of significant deterioration. Getting them back in good standing ...

Welding is typically used to join two parts together, whether those parts be metal or plastic. There are various styles of welding, but we won’t go into those here. Casting is the act of pouring a ...