CEB Press: Difference between revisions
| Line 15: | Line 15: | ||
#[http://blog.p2pfoundation.net/steve-bosserman-on-economic-sustainability-in-a-world-of-open-design/2008/02/19 P2P Foundation review of the economic model] | #[http://blog.p2pfoundation.net/steve-bosserman-on-economic-sustainability-in-a-world-of-open-design/2008/02/19 P2P Foundation review of the economic model] | ||
== | ==Stabilization== | ||
The biggest need is for a low energy stabilization method. | The biggest need is for a low-energy stabilization method. | ||
One development that may make a huge difference for | |||
One development that may make a huge difference for CEBs is enzyme stabilization. | |||
Products such as Permazyme 11X, EcoBric and others may make possible the low-energy manufacture of bricks and blocks that have weather resistance approaching concrete. | |||
The enzyme products are nontoxic and relatively low cost. $40-$60 worth of Permazyme is supposed to stabilize enough earth for a large house. 1 gallon of Permazyme costs $120 and stabilizes 150 cu yds. 1-2 liters will stabilize a house. | |||
I have been unable to find any builders using these products for CEB (though EcoBric is aimed at that market) but there seems to be considerable experience stabilizing roads. | |||
The original patents seem to have expired, so it may be possible to come up with an open-source recipe for the enzyme. It may not be an enzyme at all. The first product of this type came about when a vintner notice the the waste from wine-making hardened the soil where it was dumped. | |||
Comments at [[Dirt floor]] may be relevant | |||
=Further Resources= | =Further Resources= | ||
Revision as of 22:09, 25 February 2011
This page is going to be turned into a redirect to CEB Press Intro, but first we need to strip out the useful info and put it where it's needed. Everything should end up in one of the following: CEB Press Intro, CEB Press Development, CEB Press Bill of Materials, CEB Press Build Instructions, CEB Press user's manual
Social Enterprise Reviews
- Review of the social enterprise experiment by P2P Foundation
- Review by Samuel Rose of Social Synergy
- P2P Foundation review of the economic model
Stabilization
The biggest need is for a low-energy stabilization method.
One development that may make a huge difference for CEBs is enzyme stabilization.
Products such as Permazyme 11X, EcoBric and others may make possible the low-energy manufacture of bricks and blocks that have weather resistance approaching concrete.
The enzyme products are nontoxic and relatively low cost. $40-$60 worth of Permazyme is supposed to stabilize enough earth for a large house. 1 gallon of Permazyme costs $120 and stabilizes 150 cu yds. 1-2 liters will stabilize a house.
I have been unable to find any builders using these products for CEB (though EcoBric is aimed at that market) but there seems to be considerable experience stabilizing roads.
The original patents seem to have expired, so it may be possible to come up with an open-source recipe for the enzyme. It may not be an enzyme at all. The first product of this type came about when a vintner notice the the waste from wine-making hardened the soil where it was dumped.
Comments at Dirt floor may be relevant
Further Resources
- AECT - CEB press fabricator - [pages.sbcglobal.net/fwehman/]
- Powell and Sons - CEB press fabricator - [1]
- Gernot Minke - one of the world's leaders in earth construction - see [2] for thorough overview, including detailed soil testing procedures.
- Galvanized wire reinforced, earthquake resistant earth construction techniques publication - [3]
- Ronald Rael is an Architect, Author and Assistant Professor of Architecture at The University of California, Berkeley. He is the founder of EarthArchitecture.org, a clearing house of information on the subject. May be interested in our work.
- Compressed Earth Block Guide - [4]
- CEB, Manual of Production - [5]
- Other information - [8] , [9]
How about through-tie with rebar? We are considering this for double brick thickness walls. We could use technical help on this.
- Rebar can get very expensive in the developing world. The galvinized wire reinforcing is much lighter, (aka a shipping container from these guys as an examle - [10] , **probably could provide better resistance to earthquake, simular pricing to rebar per pound, and probably 5 times the support per pound of material) as well as not needing double thickness which cuts down on labor.
Public Responses
The following is a letter I recieved in response to a Countryside Magazine article (July/August 2008, pg 40) which discusses our building experiences at Factor E Farm. This reader has back-of-the-envelope plans for a manual CEB press. Manual presses are useful in places when labor is more accessible/cheaper than equipment. This letter also shows the general simplicity of the CEB-- the task at hand, compressing soil into bricks-- is not that complicated.
