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Re: USES FOR COAL FLY ASH
At 08:46 AM 7/28/97 -0500, you wrote:
>>FROM: R. Illig
> AT: firstname.lastname@example.org
> One & All,
> In Pa we have developed several uses for coal fly ash...mine
> site reclamation, stabilized fill, and soil conditioning are some
> of the more common uses. I have learned that in many cases (when
> burning soft coal) the ash is too acidic for general reuse
> scenarios...requires too much lime, for stabilization, to be cost
> QUESTION: Has anyone developed other uses for coal fly ash which
> takes advantage of the acidic nature, or otherwise
> developed processing methods that would allow reuse?
> From perhaps more of a P2 perspective, one option under
> consideration is to burn harder (not anthracite) coal. Does
> anyone have any experiences to relate in this area?
Fly ash has been used as a cement over many centuries, dating back to at
least the 1st century BC. This is a use that could be explored. It may
also be useful as a filler in making block and other construction materials.
Ralph E. Cooper, Ph.D.
3475 Norwood, Suite N
Shaker Heights, OH 44122-4975
Voice: 216-991-6837 (w/voice mail)