In message <5.2.1.1.0.20030805202753.05ef1c90@optonline.net> you wrote:
>
> Hi Roland. A lally column is one of those steel poles commonly found in
> garages and basements holding up various parts of the house. Sometimes
> they're filled with concrete, but I have no idea if mine is.
Steve,
I would have thought that tapping the column gently with a hammer
(above the rusty area) would give a good idea as to whether or not
it is filled with concrete. An empty column should ring whereas one
full of concrete would sound dull.
> There is enough rust that the
> bottom of the pole must be thinner than it originally was.
I belive that rust occupies something like ten times the volume of
the parent metal. In other words, a small amount of steel produces a
large quantity of rust.
HTH
--
Dick Atkinson RISC OS on an Iyonix pc
In sunny Chester-le-Street, Co Durham, NE England
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