&gt;Concrete, not cement. 


Fair, that's one I can't get to stick in my head. I always have to look up which is an ingredient in which before I talk to customers or write up a bid.

&gt;There is a rather large difference in cost going from asphalt to concrete pavement 

Yeah, and for what I do concrete is MUCH cheaper on average.

&gt;Unless you’re doing residential driveways or private pavement jobs, the design engineer doesn’t just let you put down concrete instead.

Design engineers need not apply, I'm just patching up private streets and parking lots. For public streets I've gotta follow city specs (usually t cut, 3 or 4" total thickness over 2 lifts)