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Re: Rusty Rebar

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There are proscriptions in most codes for the amount of loss of cross section before the rebar has to be rejected.  I don't know the reference but a materials engineer would be able to help.

Thor A. Tandy   P.Eng.,  MCSCE
Victoria, BC, Canada
e-mail: <vicpeng(--nospam--at)>

-----Original Message-----
From: Randy Russ <rruss(--nospam--at)>
To: Structural Chat <seaint(--nospam--at)>
Date: Sunday, October 18, 1998 7:06 PM
Subject: Rusty Rebar

>I have a project that has been resurrected after 4 years. 4 years ago,
>45,000 lbs of reinforcing steel were detailed and delivered. I did the
>original design and checked the shop drawings. 
>The job was shut down and is now going out for bid again. I have examined
>the rebar. It was stored outdoors and off the ground. It has mill scale on
>it but I can see no obvious degradation.
>My question is this. Is there any special surface preparation which I need
>to specify, or is my biggest problem the fact that you can no longer read
>the tags and it will be real fun indeed figuring out which bar goes where?
>I would appreciate feedback.
>Randy Russ