Water-based latex paints are available, though color choice is limited. Polyurethanes, like Rust Bullet DuraGrade Concrete Paint ... roller, or spray, although an etch coat may be required ...

Over 40,000 bridges in the U.S. are considered structurally unsafe, and more than 200,000 need repairs. But help may be on the way, thanks to a new invention from engineers at Florida International ...