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fly ash |
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fly ash n
(Chemistry) fine solid particles of ash carried into the air during combustion, esp the combustion of pulverized fuel in power stations ThesaurusLegend: Synonyms Related Words Antonyms
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We regularly replace Portland cement in concrete with fly ash, a byproduct of coal-combustion in electric power plants, and with blast furnace slag, a byproduct of the manufacture of iron. The more carbon the fly ash contains, the better able it is to capture oxidized mercury (formed when mercury combines with chlorine, also found in coal). Fly ash is an inexpensive but highly structured filler that reduces material cost, according to James Mahler, senior v. |
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