Concrete Info Request

If I were to fill a 5 gallon container 3/4 of the way up with a 3,000 psi concrete without air entrainment (w/c 0.40, 3% entrapped air only) and put an airtight lid on it what effect if any would happen?

Is the concrete effected in any way or would it harden to what would be expected of a 3

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