Hate to dig up an old thread, but I just saw this while I was searching for something else. This sidewalk lasted for 5 years without any issues. Then our house burnt down. We knew we were building a house with a different layout and this sidewalk wouldn't be needed, so when we had the demolition guy tear our house down we had him removed this walk. He had a big excavator (Samsung, don't remember the size, but big) he had trouble getting this walk out of the ground. Finally got the walk out of the ground. It came out in one piece. He ended up having to pick that piece of concrete up 6 or 7 times and dropping it from something like 10 or 12 feet to get it to break. I think I did good.