You have to add calcium chloride to the mixture so it won't freeze. I don't have the formula, but I'm sure it's available somewhere online. If at all possible, it would be better to hold off until spring. But another thing you can consider is using, if you have one, or renting a radiant heater. This will keep the immediate area from freezing quickly. The problem with concrete and freezing temps is the water in the concrete. But construction goes on all year long so there are ways around it.
Good luck ----- Original Message ----- From: Victor Gouveia To: Blind Handyman Listserv Sent: Thursday, November 22, 2007 2:54 PM Subject: [BlindHandyMan] Sub-Zero Concrete Laying Hi Folks, I am looking at laying down some concrete and patching up a four inch hole on the side of my house. As some of you may or may not know, we are suddenly in sub-zero temperatures here. Granted, only a few degrees or so, but we have reached 0 degrees or 32 Fahrenheit. Is it safe, or even smart to poor and lay concrete at that temperature? Is there anything I have to worry about? Any help would be appreciated. Victor Gouveia [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]
