[Strawbale] Loadbearing wall

[Chug.]

Hi Herbert

I don't think there is a standard rate of compression it is mostly to do with how tightly or how loose the straw is baled and how 
carefully the walls are built, with nice tight bales and careful wall raising (flattening the bulges in the ends of bales so they 
stack together closely) there will be much less compression than with loose bales and uncaring wall raising.
I do not have any figures for compression loading but with a well built wall using tight bales then 50mm of settling is about 
average.

bale on
Chug
chug at strawbale-building....uk
http://www.strawbale-building.co.uk/
.
----- Original Message ----- 
From: "asbn" <asbn at baubiologie...>
To: <strawbale at amper....muni.cz>
Sent: Saturday, April 22, 2006 1:35 PM
Subject: [Strawbale] Loadbearing wall


Dear loadbearing strawbalers

In Austria there are many strawbalehouses, but only one little shed built
loadbearing. So we have not much experience with loadbearing
strawbale-construction.

In this summer in Carinthia the first Austrian two-story-loadbearing
passivehouse will be built, planned by architect Winfried Schmelz, made with
strawbales in size 160 x 80 x 50 cm,

SORRY, bales laid flat so that the wall is 80 cm thick!

The walls will be precompressed by threaded iron.

Does anyone know, with which load (in t) we have to compress the walls, that
there is no more compression afterwards?
Does anyone know the compression in cm per m at standard-wheat-bales in this
size?

I know there are a lot of tests but in measurements and language, I don't
really completely understand.

Best wishes from Austria
Herbert Gruber, ASBN
Austrian Strawbale Network





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