Old 11-23-2011, 06:20 PM
Join Date: Jun 2011
Location: cairns
Posts: 25
Default surface rust on reinforcing.

The wire mesh reinforcing I was going to use for my foundation slab has a lot of surface rust on it.
Is it still ok to use? Should I make some attempt to clean it up or just use it as is?

Last edited by hungng; 11-23-2011 at 07:07 PM. Reason: oops, wrong area.
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Old 11-23-2011, 07:09 PM
brickie in oz's Avatar
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Join Date: Mar 2009
Location: Whittlesea
Posts: 3,455
Default Re: surface rust on reinforcing.

Just us it, I very much doubt there is any rust free rio on the planet.
The English language was invented by people who couldnt spell.

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Old 11-24-2011, 05:43 PM
Join Date: Jan 2011
Location: Perth, Wesern Australia
Posts: 178
Default Re: surface rust on reinforcing.

THe alkaline environment of concrete stops the rusting, aswell as the lack of oxygen.. should be ok to use, most of the time, slightly rusted is easier than brand new/shiny/slippery reo.
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Old 12-11-2011, 02:44 AM
Join Date: Dec 2011
Location: australia
Posts: 1
Default Re: surface rust on reinforcing.

I think it would depend on the severity on the rust. Surface rust will not matter, but if it is flacking type severe corrosion, it could be a problem. Do a search on "concrete cancer". Reo should have a minimum of 50mm embeded depth (for building purposes).
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