we were placing 4in. class c concrete sidewalk that had 6% air. It started raining hard before we could get it covered with plastic and the covered surface was soaked. Also ,walk that had set for an hour was not covered and the tool marks were obleterated buy the rain.We were able to refinish all of the walk to a decent appearence although some of the surface was sandy. What can be expected as far as problems and are there any test that would tell us if this would be reliable sidewalk?
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