The concrete pavement in a driveway, walkway or patio can break and lift when the ground settles or roots from trees dislodge it. This can cause uneven pavement that is dangerously easy to trip on. Here are some suggestions on how to repair lifting concrete pavement.
The easiest way to repair lifting concrete pavement is to grind it down. Most driveways are at least 6" thick by code, so there should be sufficient grinding depth. Walkways and patios are 3" - 4" in thickness. Renting a scarifier is probably the most practical way to do this yourself. This is not an easy machine to use, so if you are not comfortable with the job, don't hesitate to call in a professional.