Re: Concrete slab question
Regarding suspended slabs, I have seen city street maintenance workers repair old collapsed sidewalks over large storm drain entries. Sheets of suspended plywood forms are placed under pinned criss-crossing rebars and concrete poured onto that. The plywood forms are left there indefinitely as there is no way to remove them.
I can probably do the same thing here and not have to deal with filling the areas with tons of solid fill material. ......almost like building a stand for an oven.
Any thoughts on this would be appreciated.
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Re: Concrete slab question
Originally posted by Dutchoven View PostIs it going to be a suspended slab on top of those block walls or are you pouring inside of them. I am sorry if it is mentioned somewhere but, just getting a feel for what you are doing
All the best!
Dutch
Well, I was simply planning on filling them with dirt and gravel, then pouring the slab on top but that's quite a bit of filling material I have to come up with.
My other option is to erect block columns and suspend the slabs. A few concrete footings are still in place from the old wood deck that used to be there so I can use them for support if I decide to go that route.
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Re: Concrete slab question
Is it going to be a suspended slab on top of those block walls or are you pouring inside of them. I am sorry if it is mentioned somewhere but, just getting a feel for what you are doing
All the best!
Dutch
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Re: Concrete slab question
Originally posted by ThisOldGarageNJ View PostWhere will the oven be in the picture ?
The block wall I'm working on now is just the side of the house leading down to the main patio area where the WFO will be.
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Re: Concrete slab question
im sure you could fill every other as long as you throw some rebar in too... You can also use SBC, Surface Bonding Cement,, really easy to work with and has more strength than a mortar joint..
Where will the oven be in the picture ?
Cheers
Mark
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Re: Concrete slab question
Every other is fine - and obvioulsy the ones with steel.
Les...
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Re: Concrete slab question
Thanks again!
Do you guys think I should fill every core or can I get away with filling every other? I know the cores can use up lots of concrete. Thanks!
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Re: Concrete slab question
this is definitely an ambitious project... looks great so far.....
Cheers
Mark
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Re: Concrete slab question
More progress. During the week I mortared the first course to the footing and just yesterday I laid horizontal rebars and stacked the rest of the blocks.
I will toss in a few vertical rebars and fill most of the cores this week.
So far, this has been a great practice project for me before moving to the larger patio/WFO project.
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Re: Concrete slab question
I'm reminded of something the Lord once said about new wine in new wineskins...
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Re: Concrete slab question
Hi Neil2,
Thank you for your reply. What you're advising makes a lot of sense. I'm going to rethink this carefully.
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Re: Concrete slab question
"And for extra measure, to prevent eventual sinking or tilting of the slab, I will drive rebars into the existing rear and right side block foundation,"
I would advise against this. Keep the new slab and footings independent of the existing foundation walls. If not, any movement or settlement of the new works could damage the existing walls. Put a 1/2 layer of felt/fiber material against the existing walls prior to pouring.
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Re: Concrete slab question
I plan on just dry-stacking, re-barring the blocks, and filling most of the cores with concrete but is it necessary to mortar the first course onto the footings? I need to dead level the first course anyway so using mortar makes sense.
That giant bath tub situation is still up in the air....Last edited by fxpose; 10-21-2009, 10:33 AM.
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Re: Concrete slab question
Your off to a good start,, I see you havent made the giant bathtub into a garden shed yet,,, or maybe bomb shelter....
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Re: Concrete slab question
I poured the footings over the weekend. I think I used about a yard of concrete on two separate pourings as I dug pretty deep. I didn't get the mixer yet so it was the old wheelbarrow......good thing I had a friend help me out doing the mixing...
Last edited by fxpose; 10-20-2009, 06:34 PM.
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