Concrete Canoe Photo

[mwaalen]

I mentioned this in a different post so following up on sharing the photo as a curiosity as really know nothing about it.

 

[Alan Gage]

So I'm guessing the cloth was wet out with concrete rather than epoxy?

Pretty impressive weight. Any info on flexibility/durability of the layup?

Alan

 

[mwaalen]

Pretty impressive weight.

It may have been only 10' long . I honestly know nothing further about it.

 

[Nick Pending]

In the early 1970s I worked at a canoe shop in Chicago, and a couple engineering students came in looking for design info. (This event has been around that long!) As I remember, the maximum length specified then was 14 feet and I seem to also remember that it was specified as "ferrocement" construction, which meant iron/steel reinforcement was required. I suggested chickenwire (reasonably light), but didn't have any idea how to actually form one one-off. With fiberglass allowed, I guess the "ferro" part isn't followed any longer. I handed them off to the boss, and we never heard back from them that I heard about.

A little googling around led me to this, the rules for this year's competition:

https://www.asce.org/-/media/asce-images-and-files/communities/students-and-younger-members/documents/2024-asce-concrete-canoe-competition-request-for-proposals-rules.pdf

I haven't read them yet, don't know if I will, 76 pages in the pdf document, and I ain't competing.

 

[Glenn MacGrady]

 

[JCH_Ski]

I went to Michigan Tech, back in the dark ages. It was a Civil Engineering department thing - MTU entered every year, and I think they still do. I never saw it (I was an ME).