https://www.homebuildingandrepairs.co... Here's a link to our driveway construction videos. I've seen concrete sections raise or lower and sometimes pull away from each other when rebar in not used to connect each separate section poured in place together. If you are going to use rebar, then make sure it's used correctly.

How to Build Concrete Driveways In Sections by Yourself - Keeping Things Simple -    • How to Build Concrete Driveways In Se...