The Ready mixed plant said the difference in low air 2% and no air concrete is mainly for workability ie low air is easier to finish. The contractor made the order, and the building is erected. However the building is not heated as of yet and the inside temperature will be in the mid 20's F in...
Had my farm shop slab on grade just completed in 2 different pours. I saw on the first slab the reciept from the truck said low air 4000 psi. On the second pour the ticket said no air 4000 psi. Can someone tell me the difference between no air and low air? Will the low air withstand freeze...
