ASTM WK46744

    Revision of C939 - 10 Standard Test Method for Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method)

    (What is a Work Item?)

    Active Standard: C939 - 10

    Developed by Subcommittee: C09.41 | Committee C09 | Contact Staff Manager



    WK46744

    1. Rationale

    Currently C939 only allows testing of mixtures using the mixer shown in Fig. 1 of C938. It is felt that allowance should be made to mix the trial batches according to project specifications and equipment with the C938 mixer still to be used if no specifications exist. Concurrent to the ballot change wording is being proposed for C938 and C937 to harmonize this change.


    Keywords

    flow cone; grout; preplaced-aggregate concrete; time of efflux; Consistency--concrete; Efflux--hydraulic cement grout; Field testing--concrete/aggregates; Flow and flow rate--cement/concrete; Grouts (preplaced-aggregate (PA) concrete); Preplaced-aggregate (PA) concrete; Time of efflux; Viscosity;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    07-10-2014

    Technical Contact:
    Clint Shimon

    Item:
    012

    Ballot:
    C09 (14-05)

    Status:
    Negative Votes Need Resolution