I had a concrete crew finish my slab foundation for a workshop. They used a push broom to finish the surface with. Now that the concrete has dried it has a chalky/gritty surface to it. Is there some type of power tool that I can use to knock down the rough surface left by the broom and make it smooth ?? I'm not looking for a polished surface just want to get rid of the ridges left by the broom.
Thanks, Ray