Concrete is exothermic, but it will most certainly freeze when freshly poured. In this application, I doubt that there would be any problem, but great pains are taken to keep fresh concrete from freezing in most commercial ventures.
(My Parents owned a concrete company....I've been precast manager, batchman, truck driver, mechanic, and finisher...) I don't miss those days at all.
oops...sorry Scott!
Last edited by sprkplug; 02/22/13 10:43 AM.
