Step 2: Patch Spalled Areas

While the concrete is damp, mix up enough resurfacer to fill any divots. Combine 1 part water with 7 parts resurfacer in a 5-gallon bucket; blend with a paddle mixer attached to a corded drill. Fill the recesses with resurfacer, and smooth with a finish trowel. Go to the next step when you can stand on the patch without indenting it, in about 2 to 5 hours.
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    Tools List

    • gas-powered pressure washer
    • bucket with sponge
      5-gallon bucket
    • flat finishing trowel
      finish trowel
    • nylon-bristle broom
      nylon-bristle broom, for a slip-resistant finish

    Shopping List

    1. Concrete resurfacer
    Get a 40-pound bag.

    2. Concrete wash
    Get a 1-gallon bottle. For preparing the concrete walkway before resurfacing.

    3. Peel-and-stick black-foam weatherstrippping to protect the walkway joints.