What is this cement coating?
It's too gritty be a Textured Paint. And, the color &amp; material seems to be full depth, so it's not a colored Resurfacer topped with sand or even a Stucco. But, you can go with any of those to match the surface look...after a lot of trial &amp; error on a board.

But, I'm more inclined to think it's the stuff below applied at almost twice the thickness, allowed to setup &amp; then water hose flooded &amp; broomed down to expose the grains &amp; aggregates.