Concrete Broken Off with Bare Steel Showing

This is where rust stains on a garage ceiling end up. Once the steel inside a garage deck rusts long enough, the rust pushes the concrete below it loose, and a piece drops. What is left is a shallow hole with the steel bars showing.

The steel now loses thickness every season it sits open to air and salt water. The concrete around the hole is often loose too, even where it looks whole. Sounding it with a hammer finds those spots, because loose concrete sounds hollow.

If the hole is over a drive aisle or a walkway, cone the area off until someone looks at it. The repair cuts back to sound concrete and rebuilds the section, with the steel cleaned, or new steel added where too much of the old is gone.

We fix this: Parking Garage Restoration