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<TITLE>Re: [Strawbale] Searching for the Danish SB R-value testing results</TITLE>
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<FONT FACE="Verdana, Helvetica, Arial"><SPAN STYLE='font-size:12.0px'>Dear André<BR>
<BR>
Here are the test-results in detail:<BR>
<BR>
<B>Danish<BR>
</B>U-values from ?-values Measured for 385 mm straw parallel to heat flow, 75 kg / m3<BR>
Heat flow parallel to straw: ? = <B>0.057 W / mK<BR>
</B><I>(source: <a href="http://www.baubiologie.at/download/jma_slides_halmhuse.pdf)">http://www.baubiologie.at/download/jma_slides_halmhuse.pdf)</a><BR>
</I><BR>
Tests made in <B>Austria </B>for “Haus der Zukunft”-project “Wandsystem aus nachwachsenden Rohstoffen “, 1/2000 in detail:<BR>
<BR>
MA39 Versuchs– und Forschungsanstalt in Vienna: <B>ÖNORM</B>-tests:<BR>
wheat-strawbale: density 90 kg/m3, ?10 dry= 0,0369, + 20%* = R-Value <B>0,0443<BR>
</B>wheat-strawbale: density 100 kg/m3, ?10 dry= 0,0340, + 20% = R-Value <B>0,0408<BR>
</B>wheat-strawbale: density 110 kg/m3, ?10 dry= 0,0337, + 20% = R-Value <B>0,0404<BR>
</B><BR>
MA39 Versuchs– und Forschungsanstalt in Vienna: <B>ISO</B>-tests:<BR>
wheat-strawbale: density: 90 kg/m3, ?10 dry= 0,0380 W/mK<BR>
wheat-strawbale: density: 90 kg/m3, ?20 dry= 0,0394 W/mK<BR>
wheat-strawbale density: 90 kg/m3, ?30 dry= 0,0408 W/mK<BR>
<BR>
*There is a 20% addition for moisture-sensitive materials, so we work with ?10 dry: <B>0,045 W/mK<BR>
</B><I>(source for both: <a href="http://www.baubiologie.at/download/hausderzukunft.pdf)">http://www.baubiologie.at/download/hausderzukunft.pdf)</a> <BR>
</I><BR>
Tests made in <B>Austria </B>for “Stroh Kompakt”, 8/2005<BR>
R-Value at 10 °C av. temp. ?10 W/mK <BR>
dry <B>0,045</B> (Nennwert, for at least 90 % of the production)<BR>
23°C/50% ? D(23/50) = 0,046<BR>
23°C/85% ?10(23/85) = 0,050<BR>
(source: <I>OFI Prüfbericht Nr. 10.125, Nr. 300.779 und Nr. 300.779-b)<BR>
</I><BR>
kind regards<BR>
Herbert Gruber<BR>
-- <BR>
asbn - austrian strawbale network<BR>
Österreichisches Netzwerk für Strohballenbau<BR>
3720 Ravelsbach, Baierdorf 6<BR>
Email: asbn@baubiologie...<BR>
<a href="http://www.baubiologie.at">http://www.baubiologie.at</a><BR>
<BR>
<BR>
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<BR>
> Hello,<BR>
> <BR>
> I'm searching for the Danish SB R-value testing results. So I can <BR>
> compare them with the German, Austrian and French results. Other <BR>
> (serious) tests are also welcome. I'm particularly interested to know <BR>
> the lamda of SB tests in relation to the dry density that was tested.<BR>
> <BR>
> What I've found so far (thanks to Bruno Jarno) is :<BR>
> Country Dry density<BR>
> (kg/m3) Mesured Lambda (W/m.K)<BR>
> Germany 90 0,05<BR>
> Austria 100,8 0,05<BR>
> France env. 70 0,07<BR>
> <BR>
> <BR>
> Sorry for those that are not on the metrical system (yet ;-). On René's <BR>
> Dallmeijers website <a href="http://www.strobouw.nl">http://www.strobouw.nl</a> you can convert lots of <BR>
> stuff : (click 'English' and then 'Technical')<BR>
> <BR>
> Bye,<BR>
> André de Bouter<BR>
> www.lamaisonenpaille.com<BR>
> France<BR>
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