ASTM WK46434

    Work Item: ASTM WK46434 - Revision of C618 - 12a Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

    Active Standard: C618 - 12a

    Developed by Subcommittee: C09.24 | Committee C09 | Contact Staff Manager

    1. Rationale

    Current practice is for coal-fired power plants to include materials other than coal in the fuel stream, although the fuel stream is primarily and predominately coal. These other materials are added to modify combustor operation. The intent of this ballot is to modify ASTM C618 to reflect this common practice by clarifying the definition of coal fly ash.


    fly ash; natural pozzolan; pozzolans;
    Citing ASTM Standards
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