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Re: Rust

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Try the following link to the NACE

http://www.nace.org/nacehome.html

Lynn

Phil Hodge wrote:
> 
> I've been roped into preserving a cantilevered swimming pool deck in
> Tennessee.  Cousin, all structural engineering is alike, isn't it, and
> you ARE, after all, the engineer in the family, etc.
> 
> Anyway, the deck is marble over concrete over centering over steel beams
> on columns. There is SIGNIFICANT corrosion of the underlying steel.  In
> fact, most of the centering is completely gone, and has been for years.
> The stalactites adhered to the underside of the concrete are up to 8"
> long, 3/8" diameter, actively dripping 24 hours after rain stopped.  The
> concrete appears sound, and in the few places I chipped the wire mesh is
> still there.  I was surprised.  The beams, however, are in poor shape.
> Some of the flanges are completely gone.  Determining the remaining good
> steel, and strength thereof, and reinforcing is no problem.  Telling
> said owner to seal the marble to stop future moisture penetration is
> also easy.
> 
> What I'd appreciate some advice in is what to coat the steel with.  I've
> heard about several "rust converters" and "rust inhibitors", but know
> nothing.  Obviously I would rather not scrape even loose scale if I
> don't have to, and the top of the top flange of the beams is under the
> deck and inaccessable.  Suggestions?  Is there a marine or Seattle
> product that would work good?
> 
> Phil Hodge
> phil(--nospam--at)joistdesign.com