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Posted by bob haller on May 18, 2009, 4:57 pm
> On May 18, 3:00=EF=BF=BDpm, spamb...@milmac.com (Doug Miller) wrote:
> > I never said that corroding rebar in concrete couldn't cause a problem =
-- I'm
> > simply taking issue with your stand that putting steel into concrete
> > *automatically* poses a corrosion problem that will necessarily destroy=
the
> > concrete.
> This is what I wrote in my first response to the OP:
> "Another reason is that iron has a tendency to rust. =EF=BF=BDWhen it rus=
ts it
> expands. =EF=BF=BDThis would put the concrete in tension and concrete rea=
lly
> doesn't like to be put in tension. =EF=BF=BDIn other words it would tend =
to
> break up the steps.
> Use rocks, brick, or other busted up concrete if you need some filler.
> "
> I used the words tendency, would, tend to - there is nothing there
> that says in all occasions all steel rusts. =EF=BF=BDI also put the rusti=
ng
> issue in second place in my short list of reasons. =EF=BF=BDYou made a ma=
ssive
> assumption that I was somehow referring to all situations and you got
> snarky about it.
> Your two comments;
> "How are they going to get bigger while they're encased in concrete?"
> and
> "Oh, for heaven's sake. Haven't you ever heard of rebar?"
> imply that you equated an engine block dumped in a hole in the ground,
> with engineered and correctly installed reinforced concrete. =EF=BF=BDI t=
ook
> exception to that.
> I appreciate that you think the OP - a guy who wants to toss a
> considerable quantity of scrap iron into a set of steps as filler - as
> being so clued in to the correct amount of concrete coverage, and
> would know how to suspend an engine block to insure that amount of
> coverage. =EF=BF=BDI have no such illusions.
> R
ideally all rebar should be non magnetic stainless, which never
rusts.........
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