Coal combustion by-products-based lightweight structural materials and processes for making them
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United States of America Patent
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Aug 21, 2001
Grant Date -
N/A
app pub date -
Aug 31, 1999
filing date -
Aug 31, 1999
priority date (Note) -
Expired
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Abstract
Mortar mixes comprising as a major part, Class F fly ash and fluidized bed combustion ash in amounts and proportions sufficient to reduce the negative effects of the presence of unburned carbon in the Class F fly ash and the presence of sulfate in the fluidized bed combustion ash and which mortar mixes also include, as a minor part, a cementitious material. The mortar produced by mixing the mortar mix with water can include a density reduction material and can be formed into support members for use in mines.
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