Method of producing a coal combustion ash composition
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United States of America Patent
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Feb 11, 2003
Grant Date -
Oct 10, 2002
app pub date -
Dec 28, 2001
filing date -
Jul 20, 1998
priority date (Note) -
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Abstract
This invention discloses a system for cold bond processing of combustion ash which enhances various characteristics of the resulting cured consolidated combustion ash materials. Specifically, the invention relates to processing techniques which enhances both density and strength of the of the consolidated combustion ash materials. The invention also relates to processing techniques which control various chemical reactions which assure that certain types of minerals are formed in the proper amounts which results in a cured consolidated combustion ash material which has greater dimensional stability and enhanced resistance to degradation. Embodiments for both normal weight and light weight combustion ash aggregates are disclosed which meet various ASTM and AASHTO specifications.
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