[AT] Scrap iron

[Landen Schooler]

I see to remember reading about cement hulled freighters during WWII.

Landen Schooler
Palmyra, Iowa

Guy Fay wrote:
> 
> Actually, a lot of civil engineering schools sponsor concrete canoe race
> teams- UW Madison holds the championship this year. They make some
> pretty exotic mixes, the stuff will float. The trick is to get the
> strength in there. Vermiculite is a common ingrediant.
> GUy
>