Hello Everyone,
I am building different modes of green transport starting with
velomobiles and Kayaks framed with bamboo to eventually go on to
building a solar powered airship not very unlike these
http://www.turtleairships.blogspot.com/
I have had the concept for years and everyone in the transport
industry seems to be thinking along the same lines. I was going to
use carbon fiber to make the skin for these vehicles but the cost is
prohibitive.
For the Kayak and the velomobile I have decided to use a paper
mache and west systems epoxy over the bamboo frame then paint with
epoxy two part paint for extra waterproofing I was thinking of adding
an extra water sealing product to the mix like Thompson's does anyone
have any ideas/recipes? I am building these now and want to be done
with the prototypes for both within the next two weeks.
For the airship (project to start within the next 5 years) I need a
recipe that will be totally waterproof and as lite as possible also
it will be huge so cost will always be an issue. Shear strength needs
to be high and is even more important than compressive strength.
Using Bamboo in the matrix should help with this but ideally I would
be spraying right onto inflated cotton (or Mylar if it adheres)
bladders. Grancrete (http://www.grancrete.net/order/index.cfm)is
purported to be twenty percent lighter than Portland cement, is load
bearing, sticks to itself, and is waterproof. Does anybody have any
info on a possible mix for papercrete with this stuff? If I could get
a lite enough waterproof mix that cures quickly enough I could
actually make an airship out of papercrete.
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