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re: scheme: fly ash in concrete



The report by Richard Dennison of the Environmental Defense Fund, does not identify such poisons in Portland cement, to my recollection (without re-reading the report and its tiny print, again)..

Susan Snow
 
======================================================Sam wrote:

When you add a few pounds of ash per hour to something drawing 200 tons per
hour or more, you are not impacting the overall makeup of  the cement and any
significant fashion.  And since I don't see a whole bunch of leachate horror
stories from cement (some but few), just as with glass and chromates, then what

are we talking about?   The justification of disposal that will have to done
anyway, in a concentrated area, susceptible to leaking? That we have
alternatives that somehow overlook recycling problems or long-range transport
for disposal?  ????

Sam