#21  
Old 04-13-2014, 10:05 AM
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Default Re: Concrete Foundation Base Cracked...Damn it!

Quote:
Originally Posted by ncman View Post
not a place to cut corners.
+1.............
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  #22  
Old 04-15-2014, 02:26 PM
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Join Date: Dec 2013
Location: Wisconsin
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Default Re: Concrete Foundation Base Cracked...Damn it!

This mans build is in Maine ,right? How far does frost penetrate there? Standard practice in Wisconsin for a stoop, which supports steps is 4 feet of masonry on top of a footing. I do not believe for one minute that frost will not travel side ways thru styrofoam. It still gets cold enough to freeze the ground under a slab. I see sidewalks every spring getting redone because they heave. NC, the climate in your area is a lot different than Maine. I understand the concept to try and say the oven. Anything is worth trying at this point. By the way the frost has gone down 5 feet this winter here, probably close to that in Maine.
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  #23  
Old 04-15-2014, 04:28 PM
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Default Re: Concrete Foundation Base Cracked...Damn it!

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Originally Posted by Campmaki View Post
This mans build is in Maine ,right? How far does frost penetrate there? Standard practice in Wisconsin for a stoop, which supports steps is 4 feet of masonry on top of a footing. I do not believe for one minute that frost will not travel side ways thru styrofoam. It still gets cold enough to freeze the ground under a slab. I see sidewalks every spring getting redone because they heave. NC, the climate in your area is a lot different than Maine. I understand the concept to try and say the oven. Anything is worth trying at this point. By the way the frost has gone down 5 feet this winter here, probably close to that in Maine.
I'm not sure what you mean about frost moving sideways through foam. Anyway....all I was trying to do was find a way, somehow, to save them from having to tear it all down. I have lived and worked in places far north of here (Pa.), so I have firsthand experience w/frost and concrete. I actually am not here to convince you or anyone else about frost heaving, etc, and don't care a whole lot what you believe about it. I was here to offer some assistance to someone w/a problem. That's it. If you think that just because you live where you live that makes you the only authority on the subject, then have at it. As for me, I will continue to offer help to anyone w/a problem.....if I have actual real world hands on experience w/the subject.
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  #24  
Old 04-15-2014, 05:28 PM
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Join Date: Dec 2013
Location: Wisconsin
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Default Re: Concrete Foundation Base Cracked...Damn it!

NC, are you saying laying down a sheet of 4x8 2in foam flat all the way around the perimeter? I guess I never heard of this way of protecting a slab from heaving. Sorry if i came across the wrong way.
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  #25  
Old 04-16-2014, 06:45 AM
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Default Re: Concrete Foundation Base Cracked...Damn it!

That's ok. I'm done giving advice and trying to help. I'll just stick to updating my Build.
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  #26  
Old 04-16-2014, 07:01 AM
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Join Date: Feb 2012
Location: south jersey
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Default Re: Concrete Foundation Base Cracked...Damn it!

there is realy no way to save the base but you may be able to lift the oven off the base. it has to be built on a foundation below your frost line. no insulation under the slab or besides the slab will work. as you see of most of the oven built on here are on thick slabs which is fine in warmer zones but in the north east you are going to have to dig alot further down below the frost line. now this year was a real cold year out of the norm. if you look at where you slab cracked water pooled under the slab the oven base puts the load on the out side of the slab. so with the freeze and melt when the water refreeze it will expand and crack most concreet slabs in the middle. this is why you should use a good 4'' of stone under the slab. ( more stone if you have heavy clay layer. best to remove the caly if possable so water can drain.) above and below your foundation not cheep crushed concreet or modfied as they call it becaus it holds water. the stone alowes the water to drain away faster form the concreet for the refreeze. it looks like you also have a lot of water there. just like a house try to get the water away from the oven. any large amount of water will damage any foundation over time. so at least 4'' of stone on the bottom of you foundation poor and levil 4"" of concreet. then build your foundation either block it or form and poor it. then put at least 4'' of stone on the inside of the foundation. if real wet you may want to put stone around the out side of the foundation. then poor 4"" of concreet on top. then you can start your oven base. with doing all you can to control the cracking. concreet cracks it is just what it does all you can do is try to control it.

Otto

Last edited by OTTO BRAUN; 04-16-2014 at 08:05 AM. Reason: spelling
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