[Strawbale] Searching for the Danish SB R-value testing results

[catarina pinto]

Aqui vão os valores dos testes para o R dos fardos de palha na Dinamarca e
Austria. Tudo depende da densidade dos fardos..
Beijinhos


2009/3/17 asbn <asbn at baubiologie...>

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


-- 
CATARINA PINTO
ARQUITECTA
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