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I'm in construction. Asphalt and concrete.For resurfacing concrete- Ardex CD is the really good stuff and will hold up to a box store entrance. Shopping carts, tires etc. Overkill for your purposes.I've used Rapid Set "NewCrete" concrete resurfacer at my home. Go by home depot, pick up a box or two, a bucket, a paddle mixer and a large squeegee. It works great as long as you clean the surface and don't seal over any joints. Quick and easy.