Concrete resurfacing can be advantagous for both newly installed concrete and for old crack concrete as well.

Concrete Overlays are designed to:

Go Over Old or New Concrete along with Interior & Decks
Give You The Look of Expensive Stone, Quarry Tile and Brick Work
Freeze Thaw Resistant
Salt and Alkali Resistant
Fade Resistant
Stain Resistant
Much Stronger Than Concrete
Installed in Limitless Colors and Textures