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mrjohn 01-13-2011 09:25 AM

concrete
 
I have concerns w/pouring footers this x of year!
I live just outside of Annapolis,MD

epson 01-13-2011 09:27 AM

Quote:

Originally Posted by mrjohn (Post 569176)
I have concernsw/pouring footers this x of year!

Please explain yourself of the problems or concerns you have so we can have a better understanding and may be able to shed some light on your problem.

concretemasonry 01-13-2011 10:12 AM

They just started digging on a job (basement) yesterday about 2 blocks down the street when the temperature was -5F and will be done in 4 days and ready for capping and framing.

It all depends on what you are pouring and how much planning and protection, you want to do. - In other words more information

Dick

mrjohn 01-13-2011 10:41 AM

My main concerns is the weather footers are for porch and kit bump out dropping down into the 20' at nite

Bondo 01-13-2011 11:45 AM

Quote:

dropping down into the 20' at nite
Ayuh,... Pour earlier in the day, use hot water for the mix, then after it's struck off, fininshed, 'n tightened up,...
Insulate it with plastic sheeting, blankets, hay bales, whatever it takes...
The concrete will be makin' it's own Heat, ya just gotta slow it from loosin' that heat...

concretemasonry 01-13-2011 03:19 PM

If it is only 20F (not really cold since it is air temperature and not concrete temperature) at night and it is enclosed/protected, you should have no problem. Footers for a porch usually have little load and by the time you have a load on them, the concrete footers will be stronger than anything above. That is part of the prescriptive standards that are the minimums in residential codes.

As long as you are not pouring on realy frozen soil, just pour and protect for a few days. Then you can backfill and use Mother Nature and the thermal storage of the soil to protect the concrete.

Dick

LateralConcepts 01-13-2011 03:46 PM

Don't forget to locate underground utilities (i.e. sewer or septic lines, tanks, or drainfields) before pouring whatever you're pouring. Wouldn't wanna pour concrete over something that may need to be accessible later. :thumbsup:

mrjohn 01-13-2011 05:33 PM

Thanks all I'll sleep well 2 nite LOL


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