[AT] Scrap iron

[Dean VP]

It might be interesting to note that floating bridges are made with concrete
pontoons. Have concrete boats out here too. 

Dean A. Van Peursem
Snohomish, WA 98290

I'm a walking storeroom of facts..... I've just lost the key to the
storeroom door 


www.deerelegacy.com

http://members.cox.net/classicweb/email.htm



-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Guy Fay
Sent: Tuesday, April 12, 2005 5:12 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Scrap iron

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

Gene Waugh wrote:

>Mike,
>
>This won't help anything, but just as a point of interest... ALUMINUM is 
>heavier than concrete, but it's harder to fit tightly in a drum without a 
>lot of heat.
>
>George Willer
>-----------------------------------------------------
>
>Man, George, I sure just learned something!  I see that aluminum is about
>164 lbs/cu ft, and concrete is 90 - 125 lbs / cu ft.  Who woulda thunk it!!
>
>Thanks,
>
>Gene
>
>_______________________________________________
>AT mailing list
>http://www.antique-tractor.com/mailman/listinfo/at
>
>
>  
>


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