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The Work of Art and The Art of Work
Kiko Denzer on Art
Cob: stucco question?Charmaine R Taylor tms at northcoast.com
Thu Aug 9 09:08:50 PDT 2001
Mike said:When working with a lime mortar in foundations and stone plinths they traditionally used an hydraulic lime mortar either by 1. adding a pozzolan to a lime putty/sand mix to set off some part of the mix prior to carbonation. ( a pozzolan is a burnt clay such as volcanic ash, brick dust, crushed clay tiles etc which reacts with the lime to form cementitious compounds) 2. using a natural hydraulic lime mixed with sand. Permanently damp stone structures don't allow sufficient air and hence carbon dioxide into the mortar matrix to carbonate the lime to the extent needed. Mike, as a matter of course would you recommend hydraulic hydrated lime for all base stone work (foundations, etc?) or is is priudent for owner builders of stone bases mix their own clay-ash pozzolans into reg lime? Charmaine Taylor/ Taylor Publishing http://www.dirtcheapbuilder.com
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