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#26 2003-08-09 20:43:24

sethmckiness
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From: Iowa
Registered: 2002-09-20
Posts: 230

Re: Weight reduction to reduce fuel need. - weight reduction over greater ISP

Concrete had a poor strength to weight ratio.  Concrete is basicly man made sandstone.  Yets, it's stonger then most, but that is basicly what it is.  I believe the geological term for it is Quartenary (sp) Conglomerate.

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