pozzolan

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English[edit]

Etymology[edit]

From pozzolana

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Noun[edit]

pozzolan (plural pozzolans)

  1. Any material which, when combined with calcium hydroxide, exhibits cementitious properties; often used as an extender with Portland cements.
    • 2009 March 31, Henry Fountain, “Concrete Is Remixed With Environment in Mind”, in New York Times[1]:
      Both are what are called pozzolans, reactive materials that help make the concrete stronger.

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