As a fellow participant, I confirm that Michael asked lots of questions and seemed to enjoy the workshops and the San Juan climate.  His summary of "the point" is mine as well, but he expresses it so well that I won't dare to follow.  My simpler conclusion is that it may be just fine to continue as I have been, using hydrated lime, some Portland cement, and local aggregates as an appropriate mortar for most of my Michigan projects.  We find no brick dust or oyster shells here. I may need to further consider our lime sources, which I think are generally from locally quarried and burned limestone, so the Portland adds the pozzalanic characteristic to a modern hydrated lime. I'm still trying to summarize my notes.  APT was good overall, wonderful to see old friends, including a few from BP.

Ilene R. Tyler, FAIA
QUINN EVANS | ARCHITECTS
219 1/2 N. Main Street
Ann Arbor, MI  48104
ph: 734 663-5888
fx: 734 663-5044



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