Don work gloves, and examine the concrete to locate the divots. Scrub each divot vigorously, using a wire brush to dislodge any loose material and soften the edges.
Fill a bucket with 1 gallon of water and a cleaner designed for driveways or patios, using the amount specified on the cleaner bottle. Insert a long-handled scrub brush into the mixture and scrub the entire surface of the concrete to remove any oil.
Rinse the concrete surface using a garden hose to remove the cleaning residue. Wait one to two days to allow all of the moisture to evaporate from the concrete.
Fill a bucket with a mixture of 7 parts concrete resurfacer and 1 part water. Mix the two items up, using a trowel, until well combined.
Scoop up 1/4 cup of the mixture with a trowel, and spread it over the surface of all of the divots to fill them in until they are level with the surrounding surface of the concrete.
Spray the concrete surface with a garden hose until it is thoroughly damp. Allow the excess water to run off, or towel-dry the surface with old rags.
Create another resurfacing mixture, this time using 5.5 pints of water for every 40-pound bag of powdered mix. Install a paddle bit onto a drill, and don safety glasses. Insert the bit into the bucket and squeeze the trigger to mix the contents.
Pour the mixture over the surface of the damaged concrete and spread it out to an even 1/4-inch layer, using a long-handled squeegee.
Wait until the material begins to set up, which takes approximately three to four minutes, and then push a broom over the surface lightly to scuff it, which makes is slip-proof.