I've sprayed Papercrete as stucco and do not see how one would easily
get to a six inch thickness. You would at least have to weight for
each half inch of sprayed material to dry if it were being applied to
a verticle surface. ALS keep on mind that six inches of sprayed
Papercreter would probably be R=18. That is less than IRC code
requires for walls and ceilings. Going for R=30 as a minimum would
make more sense.
I have a need for a small some for my lead acid batteries. Next month
I will be starting a double armature hemispherical with 12" spacing
between both armatures. I spoke with other Papercreters off th list
about insulating and settled on using a diaphragm pump. A friend
loaned me a 2" gas powered diaphragm pump to pull the wet PC out of my
mixer and directly between the armatures of the some. I believe this
is very similiar to the way Tim Pye built his PC home with slip forms
in Arizona.
On Aug 12, 2007, at 1:39 AM, "mountainfair" <yahooposting@dreamthefuture.org
> wrote:
> I have seen Spaceman's dome project and read his posts about the labor
> involved in troweling or spraying pc. I believe it was you that also
> had pics up of helping a friend make a geodesic pc dome with pre-cast
> triangles... And yet it appears that today you are recommending
> spraying a dome.
>
> This concept of covering and spraying a dome is one that has
> interested me for some time. I have a lot of experience building
> domes, large yurts and hybrids, out of wood, conduit and pvc. I have
> built some 2 series domes that have vertical walls - could be good
> candidates for casting triangles, as the triangles are very big,
> roughly 8' per side.
>
> Can those with experience spraying pc or making pc domes offer the
> benefit of your experience? Or can anyone direct me to websites or
> resources where I can learn more?
>
> If I want to get a wall thickness of at least 6 inches (it gets cold
> here in CO in the winter, and I want the dome/s to be insulated),
> would spraying pc on the dome be a LOT more work than casting
> triangles on the ground?
>
> I helped with a block based dome project and it took a long time -
> casting square blocks, then making them into a dome by hammering rebar
> stakes through the blocks and using a string to keep the distance
> constant. Seems like there must be an easier way.
>
> How thick can you spray a layer of pc?
>
> What sprayers are available, work best, and cost what?
>
> Would those with experience recommend sticking to casting pc on the
> ground over spraying if I am interested in saving time and energy?
>
> Where can I learn more?
>
> Thanks!
>
> -Eli
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
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