I was a concrete carpenter for 8 years and if I did that I would be fired on the spot . First : never pour concrete over grass or dirt . remove sod down to substrate . Put down sand and pack it down , set rebar or wire 1/2 way down . Make sure forms are secure Call for mix with fibers to add strength Get 3500 lb.test or better Stay with it until it sets. Strip form after 12 hours Takes 5 days to cure. You can add anchor bolts at the pour or use Tap-Cons after . Good luck
