Not to mention, the job is done, what help is it to say these things now.
I had / have a bad habit of seeing what is not good about things, friend gets a new car... I point out all that is wrong with it, friend stopped showing me his new cars!
I understand the moral of your experience and you make a wise and good point.
To be clear though, I am pointing it out for those planning to do concrete in their future projects. Using compacted base rock, tied rebar and welded wire mesh all suspended off the base rock with dado's is the "proper way" to pour concrete that will have vehicles driving on it.
Using fiber reinforced 6 sack concrete is stronger yet, but not too good if you plan to lay down and work on it.
