Frozen concrete


i have a new house that is about 6 months old. A samll area ( 5'x5') appears to have frozen, as it will forever brush away, as dust. it seems solid but the top has aggregate visible.
I am not concerned about strenght as much as appearance.
is there an epoxy or some other bonding agent that will patch this.
TIA
Dan
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I should have stated that this is regarding my basement floor. we had heaters there and the cap was on but apparently it was colder than we thought..
TIA

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