[tuga]

I was at Newell factory, and they were breaking out a section of concrete that had many cracks. After the old concrete was broken out and removed new back fill was put in and leveled. For 8 hours a worker using a compactor machine packed down every inch of that area. The section of concrete was about 20' x 20'. I don't know how thick the area was but I would guess 12"!

The area that was prepared was in the middle of the driveway that had Newells rolling on it constantly all day - every day. My service work was finished before they poured the concrete so I didn't get to see how much re-bar was put in the section.

Personally, I believe that no matter how thick, or how much prep work is done - the concrete is going to crack. Of course I also believe that thicker is better and it should last longer.

Just my .02