Re: I need to build a concrete ramp for shed
For ease of mixing, I would recommend doing no more than two 60 pound bags at a time and only one 90 pound at a time. The more you put in your wheelbarrow, the harder it is to get to the bottom of the barrow and evenly mix it.
Also, calculate up how much concrete you need and then buy several extra bags so that you don't run short. The hole is ALWAYS deeper than it looks, which means an extra bag or two will disappear before you can say, "what the F?!?!?!".
When you finish it off, screed it once to get it knocked down to the top of the forms, then trowel it a little to beat the rocks down and get a good cream coat on the surface, then leave it alone until it just starts to set. When it just sets, run a broom lightly across the surface from side to side to roughen up the surface a little for traction when it's wet out. Your tail bone will thank you for it later.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!