10ofRods
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Depending on the thickness of the concrete it can take a long time to dry out, if all that dust in the pictures is from them cutting it, it suggests its been down a while or its not all that thick.
It can't have been down more than 10 days if it's Suzanne. We poured concrete to put a refrigerator on - waited 48 hours, it was dry from our POV (about 3 inches think - like a patio).