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Clay slip straw bale panels

 
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Just joined Permies, don't know the best place to post this. As soon as it stops snowing in Idaho, I'm going to experiment with building molds in which I can tamp large straw clay slip panels with peg holes to attach them horizontally and verticaly. I intend them to be load bearing to a point, and I hope to cover the structure with a light roof held down with rope supports, similar to the yurts and Iranian nomad sheep herders tents. This is keeping in mind it would be for survival purposes and not pass local building codes in the U.S. I hope to show them at this year's Rabbit Sticks meet in Rexburg. Any suggestions?
 
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Slip as the adhesive will work, but only if the panels are verticle.

I have worked with composite panels, and they don't like to span more than 48".

SIPS, structural insulated panels are rated with a span up to 12 feet.
But for any long term application, you should not count on them to be structural support.
No, they don't last, or stay flat when used alone.
Put rafters or trusses under them and they are great, solid, warm, soundproof sheeting.

So making a panel of straw and slip is very much like adobe and has no ability to be put under tension.
But, if you mold the proper sized rafters inside the panel, on 24" centers, "Look Ma, no hands, woo hoo."

 
Darrell Turner
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By panels I'm thinking 3'X3'X1' blocks compressed tightly. 6" deep holes to put dowles in to connect pannels.The roof rafters and trusses of round poles, protected against winds lifting the roof by tie downs, like  the Army tents and Iranian sheep herders hold down the roof made of bent poles and felt. The idea is something for emergency survival and durable, and something that can be rebuilt when  needed. Possibly a variety of dried material could be used if straw is not available.
 
Darrell Turner
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The blocks are for the walls, roof panels I was thinking 6" thick  clay slip straw with inside willow with strings  wrapped around them and  tied to the rafters. Covered with protective layer. If they last one season that would ok, easily replaced. A foundation  of rubble and rock, maybe with a footer of cobb.
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I've got a plan to make some homebrew SIPs from 60x60 cm timber frames, which will be drilled and dowelled wtih a lattice of thin rods, most likely willow and hazel because that's what we have on hand. Then I'll pack slipstraw into the frames, clamp the forms and let them dry. Then I'll screw them onto existing walls as additional thermal mass and insulation, or onto a new stud frame for a partition in the garage. After they are up they'll get a scratch coat of earth plaster with some sort of fibre (probably short lengths of straw) mixed in to help span all the joints, then a skim coat for finishing.

We'll see how this goes and tweak the process as we get feedback.
 
Darrell Turner
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In the old days animal hair was used in finishing plaster because it was good at preventing cracking. In the SW USA the Pueblo Indians(I think) have a yearly ritual where they repair the previous season's damage to their adobe structures. I'm sure some of them also employ the help of the mushroom gods to make the experience more spiritual.
 
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