How to Resurface Concrete Walkways

Clean the surface of the walkway with a power washer to remove any dirt or debris from the surface. Clear out any cracks in the walkway with the water. Wait for the walkway to dry before continuing.

Repair any damage to the walkway before resurfacing. Fill any cracks in the concrete with concrete repair caulk, allowing the caulk to lightly overfill the cracks. Scrape away the excess caulk with the edge of a putty knife. Mix a small batch of quick-setting mortar in a bucket according to the manufacturer's instructions, and fill any small holes in the walkway with the substance. Level the mortar out on the surface of the walkway with a steel trowel. Allow the repairs to set overnight.

Place a strip of masking tape over any expansion joints between concrete slabs. Cut the edges of the tape with a utility knife so that the tape does not overlap the edges of the slabs.

Mix the concrete overlay in a large bucket using an electric drill with a paddle drill bit attachment.

Pour the concrete over the walkway and use the flat of the trowel to spread it evenly across the walkway surface to a depth of about ¼-inch. Press firmly onto the overlay so that it fills any small indention in the walkway. Do not spread the overlay over the masked areas.

Pull a medium-bristle broom across the surface of the overlay while it's still wet to add a non-slip texture to the material.

Remove the masking tape to expose the expansion joints between the individual slabs, and allow the overlay to cure for 24 hours. Spray a layer of concrete sealant over the surface to protect it from the elements and wait an additional 24 hours for use.