Had a slab poured a few days ago, The guy that did the work said 3 days before driving on it, need to work on the 62 it lost a brake line don't want to crawl in the dirt to work on it but I do not want to mess up my new work surface either. tomorrow morning will be three days, but have been reading online about curing concrete and there are all kinds of opinions, anywhere from 4 days to 3 weeks, Anybody have any good info? will i damage it if I drive on it? I figure I will deflate some to reduce ground pressure but still worried about it. It is 12'x20'x4" with not much of a perimeter footer, one number 4 bar around the perimeter, no wire but has fiber in the mix and a metal key way in the middle, IIRC he said it was 3K psi concrete. another question I have been spraying it down couple times a day keeping it moist, how long should I keep doing that?