If your porch is pitted and cracked, you probably need either a complete renovation or a simple resurfacing job. With the relatively inexpensive concrete resurfacers available, adding a new topcoat finish to your concrete surface is easy. Learn how to properly mix, apply and finish the concrete to rejuvenate your porch.
Cut the tip of the concrete-repair caulk tube at a 45-degree angle with a utility knife and insert the tube into the caulking gun.
Force the caulk into any cracks in the porch's surface that are larger than 1/2 inch wide.
Smooth the repair caulk with a putty knife.
Mix 2 1/2 qts. of water with the entire 20-lb. bag of concrete resurfacer in a 5-gallon bucket. Mix the materials with the drill motor for two minutes.
Pour the mix out of the bucket and onto the surface of the porch while quickly spreading with the steel trowel.
Run a moist broom across the surface of the concrete when it loses its wet shine, yet is still not fully cured. Allow the porch to air-dry for 24 hours.