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    ASTM WK64574

    Revision of C311 / C311M - 17 Standard Test Methods for Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete

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    Active Standard: C311 / C311M - 18

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

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    WK64574

    Keywords

    fly ash; natural pozzolan;;

    Rationale

    Discussion associated with a recent C09 ballot concluded that use of the term equivalent alkalis might refer to either total alkali content, based on procedures in Section 19.1 in ASTM C114, or water-soluble alkalis based on procedures in Section 19.2 of ASTM C114. Subcommittee C01.91 is acting to change C219 to clarify these terms and and the purpose of this ballot is to align the use of equivalent alkalis with the language being adopted into C219

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    Work Item Status

    Date Initiated:
    07-27-2018

    Technical Contact:
    Lawrence Sutter

    Item:
    004

    Ballot:
    C09 (18-05)

    Status:
    Ballot Item Approved

    Item:
    005

    Ballot:
    C09 (18-05)

    Status:
    Ballot Item Approved