Add one part water to seven parts concrete resurfacing mixture in a 1-gallon bucket.
Mix the surface preparation thoroughly with a trowel until it is about the consistency of peanut butter or brick mortar.
Apply the resurfacing to deep cracks and holes with a trowel to level the concrete. Let the resurfacing mixture dry thoroughly.
Pour 3.5 quarts into a 5-gallon bucket. Add one 40 lb bag of resurfacing mixture to the bucket.
Insert a paddle mixer into a drill chuck. Tighten the chuck and place the paddle in the bottom of the bucket.
Turn the drill on and move it up and down in the bucket. Touch the drill paddle to the sides of the bucket and move it in a circle to incorporate all of the liquid and powder together.
Mix the resurfacing for about five minutes.
Pour the mixture on the concrete and spread it out evenly with a long handle squeegee. One bag covers an area of about 12 square feet. Mix additional batches and apply to cover the entire concrete area.