This specification covers coal fly ash and raw or calcined natural pozzolan for use in concrete where cementitious or pozzolanic action, or both, is desired, or where other properties normally attributed to fly ash or pozzolans may be desired, or where both objectives are to be achieved. Fly ash and natural pozzolans shall conform to the prescribed chemical composition requirements and physical requirements. The materials shall be tested for fineness, strength activity index, water requirement, soundness, and autoclave expansion or contraction.
WJE laboratories are accredited by ANAB (ISO/IEC 17025) to perform testing standard ASTM C618 for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete.
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KeywordsASTM C618 - Coal - Concrete - Fly Ash - Natural Pozzolans
ICS CODE91.100.30 (Concrete and concrete products)
UNSPSC CODE30111500 (Concrete and mortars)
ASTM C618-19, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, ASTM International, West Conshohocken, PA, 2019, www.astm.org