I'm not going to get into a big argument with you; it just doesn't matter. Your finished concrete stuff looked good...at least I think so until you took the pictures down.
I've got 10 years of finishing experience myself, plus I've worked at a concrete plant surrounded by smart people who know about concrete. One thing I've learned, is that all finishers think they're extremely smart and knowledgeable and often they aren't. Old farts set in their ways.
Using steel on air entrained concrete has its risks.
Google "air entrained concrete steel" and click the second link, it's a PDF
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But living an honest life - for that you need the truth. That's the other thing I learned that day, that the truth, however shocking or uncomfortable, leads to liberation and dignity. -Ricky Gervais
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