Thanks for all the help with my questions. There are some really knowledgeable people on this site.

My question is about concrete curing compounds. I am pooring a slab inside a pole barn and sunlight will not hit it until the following morning. It is cool here and usually humid. Do I need to use a curing compound or will putting a sprinkler and mist is for several days? Also is sealers necessary for this application?

You need to insure the concrete neither freezes or drys out on the surface. Cool and humid should actually be pretty good. Spinkler-NO, mist- yes if you can do it very lightly.No compound, calcium, needed.