Cob: clay Asphalt dust?

[Amanda Peck]

No, haven't heard of this, what's the story?  Is is classed as hazardous 
waste (some things associated with asphalt AREN'T)? Any links?

....................
Bill (and Julie) asked

Hidare All,,,  Has anyone tried the FUGITIVE DUST from an asphalt plant's 
air srubber as a clay replacement ??? ô¿ô  bill


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