There are times it seams that some go to extremes to use Papercrete
when it is not the best choice for the project.
These panels could be built with straw encased in a clay dip. If you
need to be able to pick it up a bamboo frame would handle the job
easily.
http://www.networkearth.org/naturalbuilding/clay.html
http://www.nbne.org/natbuild/owalls.php
http://digginginthedriftless.wordpress.com/2010/06/01/get-your-hands-into-strawclay/
On 2/5/12, JUDITH WILLIAMS <williams_judith@hotmail.com> wrote:
>
> I also found it was important to use something to reinforce the block so it
> doesn't break in the middle when you pick it up. I used some old pieces of
> wire fencing and some chicken wire. These old panel I've had around for a
> long time are still in one piece but are very "flexible" meaning that they
> are very droopy in the middle when lifted. I am going to put them on top of
> the roof I already have up there so tensile strength is not very important.
>
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>
> Follow progress on the new project at http://www.papercretebyjudith.com/blog
>
> More papercrete info at http://squidoo.com/papercretebyjudith
>
>
> To: papercreters@yahoogroups.com
> From: Spaceman@starship-enterprises.net
> Date: Sat, 4 Feb 2012 20:36:24 -0700
> Subject: Re: [papercreters] Re: Pouring exact forms
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> I did some no cement papercrete, or more accurately just paper
> panels, and some sprayed infill. If you use just paper, you really
> need to seal it with a good fireproofing material, because if it
> ever ignites it will smolder, glow, and turn to ash until it is all
> gone. It does not have a flame, just smoke and lots of monoxide. I
> managed to ignite some once with a welder, and had to flood the wall
> several times with a hose to finally put it out. Lesson learned -
> don't weld on a frame encased in paper.
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> There is some debate on whether compressed papercrete has less
> insulative value than non-compressed pc. Our beloved founder, Slurry
> Guy did some experiments with molded pc containers, melting ice,
> thermometers (and probably some beer) that indicated that compressed
> pc has higher R factor. It is counter intuitive to me, and I can see
> several things that might skew the results like wet pc losing its
> insulating value. However, he's not around lately so we can discuss
> his results.
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> spaceman
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> On 2/4/2012 6:46 PM, prrr.t21@btinternet.com wrote:
>
> The way I completely eliminated shrinking was to fill the mould, then
> insert a plug, and stand on it until it was pressed down level with the
> mould's edges. Such compressed blocks can be demoulded immediately and dont
> shrink. The only issue is that a large block like yours would take numerous
> people to press it down. I did this with medium and high cement mixes btw, I
> expect it would work with less cement too, since the cement has no control
> over dimensions until it begins to set.
>
> More cement does mean a bit less trapped air, and a bit less insulation, but
> also less spread of fire and more strength.
>
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> NT
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> --- In papercreters@yahoogroups.com, "trendawareness" <trendlinesystems@...>
> wrote:
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> Thanks for the suggestion. I don't want them to be too heavy as their
> primary purpose is insulation. My understanding is the harder the mix, the
> less insulative qualities it has.
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--
Forrest Charnock
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