ASTM WK20786

    Work Item: ASTM WK20786 - Revision of C989 - 06 Standard Specification for Ground Granulated Blast-Furnace Slag for Use in Concrete and Mortars

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    Developed by Subcommittee: C09.27 | Committee C09 | Contact Staff Manager

    1. Rationale

    The current specification does not specify that a C 150 Type I or Type II should be used but this was the original intent of the specification. There has recently been a case where someone used a Type III cement. This change is to clarify that a Type I or Type II cement should be used as the reference cement.


    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Henry Prenger


    C09 (08-04)

    Ballot Item Approved