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RE: Concrete Exposed To Weather (Clear Cover)

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I assume they do that same down here too...and likely maximum clear cover
too.

Regards,

Scott
Adrian, MI 

-----Original Message-----
From: Daryl Richardson [mailto:h.d.richardson(--nospam--at)shaw.ca] 
Sent: Tuesday, August 04, 2009 6:44 PM
To: seaint(--nospam--at)seaint.org
Subject: Re: Concrete Exposed To Weather (Clear Cover)

Scott,

        We in Canada have the same problem.  As you probably know we use
epoxy coated rebar to combat that problem.

Regards,

H. Daryl Richardson

----- Original Message -----
From: "Scott Maxwell" <smaxwell(--nospam--at)umich.edu>
To: <seaint(--nospam--at)seaint.org>
Sent: Tuesday, August 04, 2009 4:34 PM
Subject: RE: Concrete Exposed To Weather (Clear Cover)


> Personally, I would assume maximum exposure for a parking deck.  Of 
> course,
> I am biased by the fact that I am in Michigan where we salt the crap out 
> of
> everything.  Some pitiful, lonely snow flake falls on the road and we back
> up a salt truck and dump a hugh pile of salt on it.
>
> Point being that the water from run off from melting/melted snow/ice in 
> the
> winter that gets "misted" up into the air will be full of salt ions and 
> will
> likely still reach the bottom of the deck above.  And this assumes that 
> your
> wearing course and waterproof membrane never have issues that might result
> in water getting onto the bottom from above.
>
> Regards,
>
> Scott
> Adrian, MI
>
> -----Original Message-----
> From: Jeremy White [mailto:admin(--nospam--at)structuralae.com]
> Sent: Tuesday, August 04, 2009 4:29 PM
> To: seaint(--nospam--at)seaint.org
> Subject: Concrete Exposed To Weather (Clear Cover)
>
> The concrete parking deck I am working on will have a wearing course.
> Would the slab and beams that support the wearing slab be considered 
> exposed
> to weather therefore requiring a 2" clear cover?
>
> The underside of the slab (and beams) is exposed to the effects of
> temperature change but will never see rain.  The top side is not exposed 
> to
> water because it is protected by the wearing course and a waterproofing
> membrane.  So I think 1.5 inches is sufficient.  Is there any consensus on
> this issue?
>
> - Jeremy
>
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