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  #10  
Old Posted Jan 21, 2022, 11:43 PM
Fvn Fvn is offline
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Join Date: Nov 2017
Posts: 694
Quote:
Originally Posted by bhawk66 View Post
Is there any temperature threshold at all when it comes to pouring concrete in the cold?
21 degrees to start the day tomorrow. I know curing concrete generates heat, but I'd think there has to be a limit, no?
Temperature definitely is a factor but advancements in admixtures have made it so that you can do massive pours like this in the cold. The process of making concrete actually produces quite a bit of heat due to the chemical reaction taking place so you can adjust this with admixtures. During the summer, down south, they've started adding liquid nitrogen to keep it cool.

The pour will also be covered in blankets (insulation between 2 layers of tarp) once they're done which will continue to allow it properly cure in the cold; sometimes they have heating elements inside, sometimes in they don't.
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