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Frank,
Concrete is a great material ! In my case I'm using it in a
ferrocement application as a soft ballast tank and a support structure.
But used as a pressure hull would be really exciting, like what Wilfred has done
and is doing.
Brian
I'm not so sure concrete is a bad idea. It will be interesting to see how
that works. I would tend toward stainless re-bar, if contemplating a concrete
sub, but the material has some possibilities. My biggest problem would be
doing any kind of modification. A monolithic pour is pretty strong, but bust
out a piece to add something.......not so sure about that. Frank
D.
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