ASTM WK42344

    Work Item: ASTM WK42344 - Revision of D5624 - 02(2007) Standard Test Method for Determining the Transverse-Aggregate Spread Rate for Surface Treatment Applications

    (What is a Work Item?)

    Active Standard: D5624 - 13

    Developed by Subcommittee: D04.24 | Committee D04 | Contact Staff Manager



    1. Rationale

    This process for obtaining uniform distribution of aggregates from an aggregate spreader is used by a number of agencies. However, variations in the mat width and material are common. The process of establishing, calibrating and verifying the transverse spread rate is consistent but the specifics in use and results vary substantially, depending on the material being placed, type of project, equipment manufacturer, age, condition, etc. A precision statement is not applicable to calculations which are uniquely specific to each combination of equipment, material, and mat variations. Therefore, this standard has been reworked as a practice rather than a test method. A generic equation for calculating the mass of material over an area is included for guidance only.


    Keywords

    aggregate spread; surface treatment; Aggregate; Aggregate spreader; Surface treatments; Transverse aggregate spread rate;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    06-03-2013

    Technical Contact:
    Mary Stroup-Gardiner

    Item:
    007

    Ballot:
    D04 (13-03)

    Status:
    Ballot Item Approved as D5624-2013 and Pending Publication