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Concrete On Elevated Deck

 
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Old 02-15-2015, 08:45 AM   #1
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Concrete On Elevated Deck


I know this is a double post (also under Commercial Construction), but I know not as many people look at the Specialty Concrete section of the forum.

I have a concrete floor to pour on an elevated metal. Plans call for 3 1/2" of concrete. The architect did not call for any reinforcing other than fiber mesh. Any thoughts? Thanks in advance.
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Old 02-15-2015, 08:53 AM   #2
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Re: Concrete On Elevated Deck


I just finished pouring a 39' x 50' floor 5-1/2" . We have one center beam (w65 x18) with w65x10 joists on top. The corrugated sits on those. Our mat is #4 bar in. 6" X 12" grid. I'll dig up some pics

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Old 02-15-2015, 08:54 AM   #3
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Re: Concrete On Elevated Deck


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Old 02-15-2015, 08:56 AM   #4
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Re: Concrete On Elevated Deck


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Old 02-15-2015, 08:59 AM   #5
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Re: Concrete On Elevated Deck


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Old 02-15-2015, 11:22 AM   #6
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Re: Concrete On Elevated Deck


As long as your spans aren't ridiculous, I see no problem.

Our last one was ridiculous
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Old 02-15-2015, 03:09 PM   #7
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Re: Concrete On Elevated Deck


Yes, I'm not so concerned about the load &/or joist spacing. That has all been through engineering. The joists are on 2'0 centers. Slab is roughly 8000 sf. I was referring more to how the 3000 psi concrete (which was spec) would react and perform at 3.5" on the galvanized deck with no rebar or wire mesh. Rebar would be difficult, because with only 3" of concrete there would not be enough cover unless it was laid on the bottom. At that point, what is the use?
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Old 02-15-2015, 09:30 PM   #8
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Re: Concrete On Elevated Deck


Wire is only useful after the concrete fails. Its there to hold it together after to cracks. Im sure it wouldn't hurt to put it in but thats on the architect/engineer. I wouldn't worry about it. If you are, write them a letter listing the issues you think you might be facing down the road. 1 year, 2years, etc. Maybe suggest putting a micro fiber in it with an added charge.
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Old 02-15-2015, 09:34 PM   #9
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Re: Concrete On Elevated Deck


I see it with fiber all the time. Pretty typical.

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