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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

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
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
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?


Rikki Nitzkin

Aul?s, Lleida (Spain)

 (0034) 657 33 51 62

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