Cold-weather Concreting

[engr567]

Is there a requirement to maintain a certain temperature difference between the rebars and concrete mix itself? I know ACI has certain requirements for average daily air temperature drops while pouring concrete in cold weather, however, I am not aware of temperature difference requirements for rebars and concrete mix. I would appreciate your inputs.

 

[engr567]

Found the ACI reference for this - ACI 306. Thanks.

 

[BadgerPE]

Did you find any information regarding an allowable temperature differential? We have been doing a lot of cold weather concreting this year and I never came across any information limiting the temperature differential between rebar and concrete.

 

[engr567]

Crackerjack47,

ACI 306 is not so clear about it, however, it will give you some reference in this regard. A/C to ACI 306, there is very limited research and analytical analysis results available on this. If you read ACI 306, you will get an idea.