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Cob: RV: Cob codesAlejandro Ascanio aleph at telcel.net.veMon Mar 13 05:36:51 PST 2000
This is a multi-part message in MIME format. ------=_NextPart_000_003C_01BF8CCF.A93C8D60 Content-Type: text/plain; charset="x-user-defined" Content-Transfer-Encoding: quoted-printable Hi cobbers, I'm now working on a sustainable community project for = people who lost their houses during the natural disaster ocurred in = Venezuela last December. I need to ask a few questions regarding cob = practices, codes and standards: 1) What is the compression resistance of cob per cm2 (or inches)? Is = datas available from lab tests ? 2) What is the maximum length of straignt walls (no curves) made of cob = when constructed without columns or pilaster? Or, at what interval in = meters, is it necessary to strenghten or reinforce a straight cob wall = with a verticle support such as columns, pilasters, wooden posts or = other structural member ? 3) How tall could be a cob wall without a floor or roof for structural = support be built? 4) Do we need below structure roof a "bond beam" to tie the cob walls = together ? 5) Has anyone added cement (low portion) to cob mixture looking for = drying walls faster and to improve its strength? Actually, a lot of people add cement to adobe blocks. They are stronger than traditional = adobe, however they don't use straw. What would happened to straw if we = add cement to the mix for cob? Does anyone know? Thank you all. Alejandro Ascanio FEDDE Fundaci=F3n Experimental de Divulgaci=F3n y Desarrollo Ecol=F3gico ------=_NextPart_000_003C_01BF8CCF.A93C8D60 Content-Type: text/html; charset="x-user-defined" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN"> <HTML> <HEAD> <META content=3Dtext/html;charset=3Dx-user-defined = http-equiv=3DContent-Type><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 = Transitional//EN"> <META content=3D'"MSHTML 4.72.2106.6"' name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff><FONT face=3DArial size=3D2> <DIV><BR>Hi cobbers, I'm now working on a sustainable community project = for=20 people who lost their houses during the natural disaster ocurred in = Venezuela=20 last December. I need to ask a few questions regarding cob practices, = codes=20 and standards:<BR></DIV> <DIV> </DIV> <DIV>1) What is the compression resistance of cob per cm2 (or inches)? = Is datas=20 available from lab tests ?</DIV> <DIV> </DIV> <DIV>2) What is the maximum length of straignt walls (no curves) made of = cob=20 when constructed without columns or pilaster? Or, at what interval in = meters, is=20 it necessary to strenghten or reinforce a straight cob wall with a = verticle=20 support such as columns, pilasters, wooden posts or other structural = member=20 ?<BR></DIV> <DIV><BR>3) How tall could be a cob wall without a floor or roof for = structural=20 support be built?</DIV> <DIV><BR>4) Do we need below structure roof a "bond beam" to = tie the=20 cob walls together ?</DIV> <DIV align=3Dleft><BR>5) Has anyone added cement (low portion) to cob = mixture=20 looking for drying walls faster and to improve its strength? = Actually, a=20 lot<BR>of people add cement to adobe blocks. They are stronger than = traditional=20 adobe, however they don't use straw. What would happened to straw if we = add=20 cement to the mix for cob? Does anyone know?<BR><BR>Thank you = all.<BR></DIV> <DIV> </DIV> <DIV>Alejandro Ascanio<BR>FEDDE</DIV> <DIV>Fundación Experimental de Divulgación y Desarrollo=20 Ecológico</DIV></FONT></BODY></HTML> ------=_NextPart_000_003C_01BF8CCF.A93C8D60--
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