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Old 4/8/10, 2:19 PM
dedwards dedwards is offline
InterNACHI Member
Join Date: Apr 2004
Posts: 5,091
Default Re: Detecting Corrosion in Steel Encased in Concrete.

Rusting metal, be it rebar, lintels, etc. expands as it oxidizes often causing the concrete it is encased causing it to spall or pop off the facing of the concrete. Here are a couple of examples on a beach front I did some years ago. I have also seen some metal lintels that have separated the bricks on either side of the garage door or windows do the same thing and open mortar joints.

Last edited by dedwards; 2/17/11 at 12:04 PM..