Wednesday, July 15, 2009

RE: [papercreters] Re: new scientific paper



Have you noticed how little they shrink (page 52), have anybody tried keeping them wet until the have hardened maybe 2 weeks and then dry them?


To: papercreters@yahoogroups.com
From: criswells.ok@sbcglobal.net
Date: Wed, 15 Jul 2009 14:00:12 +0000
Subject: [papercreters] Re: new scientific paper





--- In papercreters@yahoogroups.com, "allan.buch" <ab.7470@...> wrote:

 I just found this. Maybe there is something useful.
 
Paper Fibre Based Bricks for Low Cost Housing in Developing Countries
 http://restart.nu/wordpress/wp-content/uploads/2009/05/bricks.pdf

Allan thanks for the link, in reading the pdf it looks like I have discovered a process very simular to what theyare doing. Here is a quote from the link "
"In the processing, the paper material is mixed with water to achieve pulp consistency. The water in the paper pulp is the only water contribution to the final mixture. Paper pulp, cement, sand or ash and additives are mixed to achieve the final mixture ready for forming and drying"
That is almost exactly the way I process my batches, I fill a container with shredded paper and or cardboard, I fill the container with water, allow to soak overnight, pulp to a cottage cheese texture, allow to soak up more water until no surface water can be seen, measure and pour pulp into regular cement mixer, start the mixer, add the clay, sand and lastly add the cement, allow to mix until a uniform color  is achieved, dump the mixture into a wheelbarrow or large plastic tub and pulp once more with a drill mixer to make sure the texture is mixed very well, this only takes about a minute or less.
 BOB




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