Re: [TowerTalk] Rebar Centering, Rebar Rusting, Foundation Failure,ETC.

[ersmar@comcast.net]

Rick:

     #3.

73 de
Gene Smar  AD3F


 -------------- Original message ----------------------
From: "Rick Karlquist" <richard@karlquist.com>
> One thing that has always baffled me is:
> 
> If it is so important that rebar does not come within
> 3 inches of the concrete to earth interface, then why
> is it OK for the anchor bolts to stick up out of the
> concrete?
> 
> Possible answers:
> 
> 1.  They penetrate a concrete to air interface.
> In that case you can simply let a few of the rebar
> cage vertical bars stick up out of the concrete
> so you can grab on to them to keep the cage centered.
> 
> 2.  They are galvanized.  However, UST ships non
> galvanized anchor bolts, so I guess it isn't 2.
> 
> 3.  Rebar rusts easier than bolts.  Probably not.
> 
> Anyone have the correct answer?
> 
> Rick N6RK
> 
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> 
> 
> 
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