Rethink Your Life!
Finance, health, lifestyle, environment, philosophy
The Work of Art and The Art of Work
Kiko Denzer on Art
[Cob] Re: pre-Ianto cobRaduazo at aol.com Raduazo at aol.com
Wed Jul 19 13:26:15 PDT 2006
An quote from: Earth For Homes prepared by International Housing Activities Staff Office of the Administrator Housing and Home Finance Agency Washington 25, D.C. for the use of The United States Operations Missions. Third printing Revised September 1956 (How pompous is that for a title.) Cob In cob construction, as it is used in West Africa, the soil is prepared by mixing it with other soils if necessary, by adding water, and by treading with bare feet. After curing a period in a pile to insure uniform moisture content and, possibly, bacteria action, the pile is broken down and retrodden immediately prior to use. Balls of material about the size of footballs are then formed and manually pounded into a solid mass to make a course on the wall. Each course, 12 to 18 inches high is left to dry for from one to three days before the new course is laid. Faces are pared off with a stick or trowel and worked smooth. As the height of the courses increases the workman sits astride the wall and balls of earth are thrown up to him. Thus no scaffolding is required. As the walls dry shrinkage occurs over the entire external and internal surfaces of the wall. When shrinkage is complete a mud plaster is spread over both surfaces. This coat must be renewed periodically. If you substitute tiller mixing for foot mixing and add straw at the second mix this is the way I am doing it. This publication is from my library at the US Patent and Trademark Office. They got real cheap about buying us books and publications while I was there so I paid for my own and took them home when I retired. I may have the last copy of this in the world. Ed
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