Pozzolan

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any material which, when combined with calcium hydroxide, exhibits cementitious properties; often used as an extender with Portland cements.

    "Both are what are called pozzolans, reactive materials that help make the concrete stronger."

Example

More examples

"Both are what are called pozzolans, reactive materials that help make the concrete stronger."

Etymology

From Italian pozzolana.

Related phrases

calcium hydroxidepozzolanic cementpozzolanic fly ash cement

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.