In a message dated 4/11/2008 5:59:41 P.M. Pacific Daylight Time,
> Here's what I don't understand (as a non expert):
> There are elaborate precautions to prevent rebar from
rusting: no rebar is allowed to be within an inch of
any concrete surface.
> OTOH, the anchor bolts are allowed to poke up through
the top of the concrete and now you're telling us they
don't even need to be galvanized. FWIW, I have seen
a lot of apparently galvanized anchor bolts on traffic
signals and light poles.
> Is there any logic here I am missing? Or maybe as
you say, the code is always right, whether it is logical
The rebar cannot touch the earth. It leads to oxidation and exfoliation
and maybe even failure (in someone else's lifetime - hi).
Anchor bolts are not subject to the same consideration since they're not
anywhere close to dirt.
Unfortunately I'm not an engineer either so I only know the practical
construction side of things.
The anchor bolts
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