ASTM WK31217

    Revision of D4791 - 10 Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate

    (What is a Work Item?)

    Active Standard: D4791 - 10

    Developed by Subcommittee: D04.51 | Committee D04 | Contact Staff Manager



    WK31217

    1. Rationale

    This work item is intended to make revisions to ASTM D 4791 based on comments received on subcommittee ballot D04.51(01-10) and committee ballot D04(01-10). This includes revision to the weighted average calculation procedure to provide clarification on what to do with any fractions not tested. The revision will also address the use of non-natural aggregates. Re-wording of the significance and use statement will be provided as well.


    Keywords

    aggregates; coarse aggregates; particle shape; Size/size distribution analysis; Coarse aggregate; Elongated aggregate particles; Flat aggregate particles; Particle analysis--aggregate; Sieve analysis--aggregate ;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    12-06-2010

    Technical Contact:
    Maria Knake

    Status:
    Draft Under Development