ASTM WK43499

    Revision of C470 / C470M - 09 Standard Specification for Molds for Forming Concrete Test Cylinders Vertically

    (What is a Work Item?)

    Active Standard: C470 / C470M - 09

    Developed by Subcommittee: C09.61 | Committee C09 | Contact Staff Manager



    WK43499

    1. Rationale

    Because shipments (lots) of single-use cylinder molds vary widely in quantity from just a few cartons to a full truckload, additional guidance regarding acceptance testing is needed. The proposed change would alleviate the possibility of rejecting an entire large shipment based on the failure of a single mold.


    Keywords

    concrete; molds; test cylinders; Concrete test specimens--specifications; Cylindrical concrete specimens; Molds; Reusable molds; Single-use molds; Testing methods--laboratory instrumentation; Vertical cylindrical molds; Water absorption--aggregate/cement/concrete;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    09-27-2013

    Technical Contact:
    Benjamin Backus

    Status:
    Draft Under Development