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RE: GSBN:Bamboo, clay and "worlds largest building"

HI all, 

Thanks a lot for all the information and advice.  I will keep you all up to
date on the project as it developes.  Just so you understand the process, we
need to finish the detailed project by the end of may.  Then we will have
some months to "prepare" but only 5 Months (October 2007-March 2008) to
build the thing.  Itâs the time issue which most worries us.

That is why Maren needs advice on how many m2 of wall can be built a day (We
know this depends on many factors, but how would you all approach this?) and
how much people tend to charge.  Should it be a price based on euros/m2 or
on time?  We have never worked on such a big job and are unsure as how to
approach it...If you prefer to send comments off-list thatâs ok.  

I repeat Maren«s questions here just in case you all forgot:

"this message is addressed to all of you that are used to write or calculate
bugdets for SB-construction. As I wrote some days ago, I need to know
approx. prices per m2 of infill-sb-wall and how long it takes to produce one
sq (m2) (assume that all auxiliar elements are already prepared -like
scaffolding, elevators,etc. ) 

We Just need to know what is necessary to shape the bales and put them in

In projects we need to attach these prices per units of volume, sq (m2), kg,
etc. Please, if you have some idea, I would be very happy if you could share
it with me...please, write include your country when responding.  

Thanks in advance for any advice.

Rikki Nitzkin
Aul?s, Lleida, Espa?a
(0034)657 33 51 62 
www.casasdepaja.com (Red de Construcci?n con Balas de Paja)
> -----Mensaje original-----
> De: GSBN [<a  target="_blank" href="mailto:GSBN@...";>mailto:GSBN@...] En nombre de Lorenzo Robles
> Enviado el: lunes, 26 de febrero de 2007 23:17
> Para: GSBN@...
> Asunto: RE: GSBN:Bamboo, clay and "worlds largest building"
> Hello Rikki,
> there is also the possibility to wrap the bamboo with a good natural net
> like jute  cloth, or thin hemp rope( or any vegetal, rouh, little
> rope,cheap
> but resistant) .It doesent need to cover all the surface, but rope or
> cloth
> may cover 35 to 50 percent of the bamboo (or any wooden structur of very
> non
> absorbing or polished wood), in a regularly and tightly tensed spiral. If
> I
> am clear enough? Then if you use a lot of chopped staw, or  schff, mixed
> with the claym there will be a lot les retracting when dry.  The eventual
> crack, after drying, can get a final filling as a finishing, with clay and
> straw
> Cheers,
> Lorenzo
> >From: lotan-build@...
> >Reply-To: "GSBN" GSBN@...
> >To: GSBN@...
> >Subject: RE: GSBN:Bamboo, clay and "worlds largest building"
> >Date: Sun, 25 Feb 2007 10:24:10 +0200
> >
> >Dear Rikki,
> >
> >We used date palm branches (leaves removed) as external pins for a
> privacy
> >wall.  They are irregular in diameter, and very smooth.  Vertical cracks
> >developed parallel to these poles where there was less than 4-5 cm of
> earth
> >plaster.  To have avoided and now to repair the cracks we have used the
> >techniques:
> >1. the plaster coat between the pole and the exterior needs to be 4-5 cm
> >thick, monolithic with the wall plaster, using long straw until the final
> >coat
> >2. a strip of plastic or fiberglass mesh (we utilized ripped bug screens)
> >about 10-15 cm wide placed over the pole inside the plaster creates
> >continuity within the plaster.  The Steens use burlap / hemp for this
> over
> >wooden posts.  We use this over steel posts embedded in the plaster.
> >
> >In both cases above where the repair plaster was obviously different from
> >the original finish we sculpted on additional material to create sculpted
> >vines climbing the walls(filling the cracks).
> >
> >I would suggest considering leaving large gauge posts exposed on the
> >internal side thereby avoiding the problem.  Coat the bales with a strip
> of
> >plaster where before they are placed up against the bamboo posts for fire
> >protection.  When the wall plaster dries and will be obviously
> disconnected
> >from the bamboo you will know that underneath the sb's are coated.  If
> you
> >don't like the crack you can place molding or a hemp rope on/in the gap.
> >Alex Cicelsky
> >Education, Design and Construction
> >Center for Creative Ecology
> >Kibbutz Lotan
> >D.N. Eilot 88855 Israel
> >Tel: 054-979-9009
> >Fax: 08-635-6842
> >website: www.kibbutzlotan.com
> >
> >-----Original Message-----
> >From: Rikki Nitzkin [<a  target="_blank" href="mailto:rikkinitzkin@earthlink.net";>mailto:rikkinitzkin@...]
> >Sent: Friday, February 23, 2007 6:35 PM
> >To: 'GSBN'
> >Subject: GSBN:Bamboo, clay and "worlds largest building"
> >
> >Hi all!
> >
> >One of our "problems" is to solve the encounters between the clay and
> >bamboo.  We have never worked with bamboo.  We will be doing testing, but
> >are interested in recommendations on how to solve the problem of the clay
> >sticking to the bamboo (I understand it is not porous at all) without it
> >cracking.  I fear that if we nail or screw something on it the bamboo
> will
> >split, and don&#xAB;t know if a "key-coat" of  casein paint with sand/straw
> will
> >be enough to keep the clay on...Any ideas?
> >
> >
> >
> >Thanks,
> >
> >
> >
> >Rikki Nitzkin
> >
> >Aul?s, Lleida (Spain)
> >
> >  (0034) 657 33 51 62
> >
> >  <<a  target="_blank" href="mailto:rikkinitzkin@earthlink.net";>mailto:rikkinitzkin@...> rikkinitzkin@...
> (Personal)
> >
> ><a  target="_blank" href="http://www.casasdepaja.com";>http://www.casasdepaja.com</a> <<a  target="_blank" href="http://www.casasdepaja.com/";>http://www.casasdepaja.com/</a>>   (Red de
> >Construcci?n con Balas de Paja)
> >
> >
> >
> >
> >
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