pouring cold cellar slabs
I have a job to build a porch with a full basement. The client wants a concrete floor on the porch. In effect, we are building a large cold cellar.
I am looking for articles that discuss this topic. Can anyone point me to such?
Any comments or suggestions highly appreciated.
This post, in response to your question, will bump the thread through the 'recent discussion' listing again.
Perhaps it will catch someone's attention that can help you with advice.
"The old Quaker Meeting house is almost 300 years old and as my sawzall made its way into the pegged ancient wood, a smell emerged that told me about dried, cracked things. The ancient Quakers sitting in the well worn pocket of their silence on the darkened pine benches were whispering something to me across the years. Something about why I was here, why we're here. Lord but it was hot. I reached in to clear anything out of what was the sill, nothing but the hardened mud, lime and sand mortar, dust and shadows." -- Jer
Whats to know?
Here we pour footers, build a block wall, pour the basement slab (if there'll be one) then put v-pan (braced in the middle - paranoia) on the top of the blocks spanning the "opening" screw together, tie rebar & pour the porch slab. 2x10's tapconned to the block serve as edge forms.
Is that what you were looking for?
Around here it's called 'B metal'.
Thanks, it does help. The V-Pan, I guess, is corrugated steel. Does that sit on top of the wall? I was thinking of using wooden forms to create the deck. I know that it will have to be well suported. I plan to remove all the wood after and just have the concrete deck as the ceiling of the cold cellar. The architect's drawing specifies the rebar size and spacing, and requires rebar dowels in the walls that bend into the slab. Any thoughts on doing it this way?
The vpan sets on the wall - it is a specially made product for this application & works great. You can walk on it, unsupported over an 8' span.
Wood would work too - but not on top of the wall, you would build a temporary wall but let the concrete go on top of the wall. Thats a lot of lumber and work building and stripping forms, but if you have a future use for the lumber, it could work, my neighbor did his this way. Go for it.
I would want more than rebar dowels bent into the slab, personally, I want my slab to be sitting on wall both sides, and I'm pouring 6" thick with a lot of rebar, but I am not an engineer.
Treat every person you meet like you will know them the rest of your life - you just might!
Thanks Brian, I appreciate your sugestions. The Vpan is a new thing for me and if I can find a supplier here, I'll use it. Right now my aim is to use wood. I am casting the walls right now, using wooden forms and I figuered I would use the same forms as a platform for the slab (well supported from below, of course). My architect specified M10 Rebar on 24 inch centres in the top of the wall. They will be bend into the future slab. He also specified a mesh of rebar on 12 inch centres through out the slab. I realize the slab will end up being cast on top of the wall, in fact, this cast will project past the wall by 4 inches.
It sounds like I am on the right track but comments are still appreciated.