Originally Posted by Rocket49
As someone who knows very little about cement, I was wondering if cement pours ever have to be rescheduled because of super cold weather.
Obviously, tomorrows forecast weather should present no major issues.
But if we were in the middle of a polar vortex, would everything go smoothly if the temperature were 10 or 20 below zero?
Weather can affect the curing but there are additives that can be used to help counteract the temperature. (Both hot and cold) These additives help speed or slow the curing process to offset temperature influence
For a pour of of 4000cy, the concrete curing will produce a fair amount of heat. The conditions will be more problematic for the people and machines working in them.
That said, rain or snow is more problematic than temperature. A batch of ready mix concrete is usually has a specific amount of water that can be added before it is no longer viable. Heavy rains for large element pours are show stoppers.
And, sorry to be pedantic, but they pour concrete not cement. Cement is a powder, but an ingredient in concrete.