Re: Natural alternatives to Fibreglass cloth?
- Standard concrete like that in your driveway and most structural
concrete is 3000 psi minimum in 28 days. You can buy harder mixes,
up to 6000 psi, if you need it to resist higher point loading like
bulldozer cleats or vibrating machines. There are different types of
cement and many different admixtures.
Structural steel, ASTM A36, has a minimum yield point of 36,000 psi.
Most structural shapes are also available in a high strength steel
that is 50,000 psi minimum.
> figures for epoxy under 10kpsi. I think with ferro cement, thecement
> might be able to take more of the compression load, as youdescribe,
> and as I recall portland cement is ok in compression and terriblein
> tension. I also seem to recall epoxy has some strength in bothtension
> and compression, but nothing like what you see with glass added.?
- Just buy the darn fiberglass and be done with it!
It'll be much easier to deal with, as strong, and your boat will be
back in the water in no time!
It is summer after all... at least here on Cape Cod...!
--- In email@example.com, "Justin Meddock" <jmeddock@n...>
> Not really natural, but I have a couple of old delaminatingmylar off
> Mylar/Kevlar sails laying around. I was thinking of pulling the
> and using the kevlar cloth for FG repair work.