Generally, complete concrete removal is your best option if any of the following are occurring on your driveway, patio, sidewalk, or slab:
1. Multiple cracks: wide and deep cracks that are uneven (settled on one side) mean that patching is not likely to work well
2. Frost Heave:ÃÂ part of the concrete is pushed up due to the frost that occurs in colder climates
3. Settled or Sunken C...