[Strawbale] Plaster content

[Sport Hotel, Jure Pozar]

Thats what I heard that people do this days: add little cement for 
strenghtening, but lots of people would probably disagree with this.

Jure

Dne 11.8.2011 6:00, pis(e Enn Veesalu:
>
> Hello Tomas!
>
> Maybe too late for you, but you asked about recipe for lime plaster 
> outside.
>
> I am not sure for strawbale walls, but for stone walls (I hope it's 
> the same) restorers use ratio 1 : 1, what mean that 50% sand and 50% 
> lime.
>
> Now days surrounding air have a lot pollutants and pure lime plaster 
> is not so strong enough for active components in outside. In this case 
> is permissible today to add very small amount cement too; for 
> strengthening plaster.
>
> Regards,
>
> Enn Veesalu
>
> ------------------------------------------------------------------------
>
> *From:*strawbale-bounces at amper....muni.cz 
> [mailto:strawbale-bounces at amper....muni.cz] *On Behalf Of *Thomas 
> Simkevicius
> *Sent:* Wednesday, July 20, 2011 12:01 AM
> *To:* strawbale at amper....muni.cz
> *Subject:* [Strawbale] Plaster content
>
> Hello,
>
> Last week put some scratch coat onto my strawbale garage. The render 
> mix that I have used for the inside was 4 parts coarse sand to 1 part 
> pure clay to 0,5 part chopped straw. With this mix everything went 
> perfect,  no cracks appeared when the plaster dried.
>
>  For the outside scratch coat I used the same ratio plus added 
> hydrated lime in powder to the mix. The ratio of the lime I tried to 
> keep to around 5% of the mix. The outside plaster cracked a lot. I'm 
> sure that the reason for the cracks was lime. There was little area 
> outside where I did not put lime in the plaster, and in this area no 
> cracks appeared when the plaster dried. What ratio of lime should I 
> keep in the mix for the outside?
>
> Regards,
>
> Tomas
>
>
>
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-- 



Jure Poz(ar, dipl.org.tur./ general manager

HOTEL SPORT&   MTB park Notranjska
Kolodvorska c. 1, Postojna
Slovenia
Tel.: +386 5 720 22 44
Fax:  +386 5 720 22 40
Mobile: + 386 51 630 575
www.sport-hotel.si
e-mail: jure at sport-hotel...
www.dos-extreme.si
skype: jure.pozar

Bodi resnicoljuben: nikoli se ne pretvarjaj. Resnica vedno zmaga
Be truthful: never pretend. The truth always wins


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