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Info on Cob cistern and Cob Swauna (sweat:sauna)John Schinnerer jschinnerer at seattle.usweb.comWed Oct 29 12:00:23 CST 1997
Aloha, -----Original Message----- From: Vernon B. Johnston [SMTP:vajohnston at nas.com] <...The other reason that I am willing to bet it will be fine is the synergy created by the use of cement mortar to line the inside of the tank. Not only do I get a decent liner to keep my water in, I get increased tensile strength. Anyway, that is what I decided to line the Cob tank with - about a half inch or so of cement mortar, either hung on chicken >wire or metal lath. You may be aware of this already, but it is the metal reinforcing that provides tensile strength, not the cement/mortar (concrete has high compressive strength, very low tensile strength). I'd recommend nice heavy chicken wire or even light concrete reinforcing mesh to be sure of plenty of tensile strength - one piece with only one (vertical) seam/joint would be strongest. By the way, how big is this cistern volume-of-water-wise? John Schinnerer -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/ms-tnef Size: 2412 bytes Desc: not available URL: <http://www.deatech.com/pipermail/coblist/attachments/19971029/a874e7e4/attachment.bin>
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