fly ash
noun
: fine solid particles of ashes, dust, and soot carried out from burning fuel (such as coal or oil) by the draft
Examples of fly ash in a Sentence
Recent Examples on the Web
Some techniques for reducing carbon dioxide emissions include substituting some of the clinker – the hard residue typically made from limestone – with supplementary materials such as clay, or fly ash and slag from industries.
—
Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026
That shows that DβS can help produce concrete that's stronger than the usual stuff made with fly ash.
—Abhimanyu Ghoshal, New Atlas, 27 Nov. 2025
Some uses for fly ash are in making concrete and cement for road construction.
—Noël Fletcher, Forbes.com, 5 Sep. 2025
Each year, millions of tons of fine-particle waste called fly ash are recycled, usually into additives for concrete, but millions of tons also go to waste.
—Lew Sichelman, Miami Herald, 10 July 2025
See All Example Sentences for fly ash
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Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026
That shows that DβS can help produce concrete that's stronger than the usual stuff made with fly ash.
—Abhimanyu Ghoshal, New Atlas, 27 Nov. 2025
Some uses for fly ash are in making concrete and cement for road construction.
—Noël Fletcher, Forbes.com, 5 Sep. 2025
Each year, millions of tons of fine-particle waste called fly ash are recycled, usually into additives for concrete, but millions of tons also go to waste.
—Lew Sichelman, Miami Herald, 10 July 2025
See All Example Sentences for fly ash
Cite this Entry
“Fly ash.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fly%20ash. Accessed 17 Feb. 2026.
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