Horse stall freshner, it is chicken safe, you can look it up at Tractor Supply. Search PDZ in forums, there are many threads discussing it, that's where I learned of it. It will dry wet areas quickly and prevents smells…I love it.
I don't have concrete floors, but use sand in run, coop - has wooden floor and in nests.
If sand gets wet from water fount spills, rain, or poops, I mix PDZ into the sand - it absorbs water and prevents smells from poops.
If you mean large water spills, don't see why sand or dirt would be any...