Not completely off-topic since this driveway connects the gar-shop to the street. ;-)
As the final part of a new addition to our house, we will need to install a new driveway. The existing driveway is about 100 feet long and 10 feet wide. It appears that once upon a time, it existed as a concrete driveway. I'd say it has been resurfaced twice with asphalt. (House is 50+ years old). The new driveway will be about the same length, but gets moved over 5 feet or so. The approach to what will be the new gar-shop will be somewhat different as well.
a) How difficult would it be to demo the existing driveway? My dad has a combination (and a bulldozer) that we could use, and I suppose we could rent anything else that might be desirable. My guess is removing the asphalt will be simple...perhaps as easy as putting the bucket of the combo down and scooping it up. My big worry is the concrete. I don't know how they were building concrete driveways 50 years ago. If we're talking concrete reinforced with rebar, I think we could have a job on our hands. If, OTOH, it was not reinforced, it might not be as bad. Obviously, no one knows what conditions exist, so take your best WAG.
b). Once the old stuff is gone, would I be nuts to try to pour this myself? Honestly, I've never poured anything this large. However, the old man has and he's got other friends who have also. Of course, after the old driveway was demo'd, the new driveway base would have to be prepared before we could form up for the new driveway.
I'm looking for opinions from people who have poured large slabs. If you think I'd be stupid to attempt it, that's a fair opinion. I'm wondering about it myself.