ASTM WK44840

    Revision of D7175 - 08 Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer

    (What is a Work Item?)

    Active Standard: D7175 - 08

    Developed by Subcommittee: D04.44 | Committee D04 | Contact Staff Manager



    WK44840

    1. Rationale

    11.3.3 The second to the last sentence should be changed for 2 hours to 6 hours. There has been many studies done to show that the DSR results is not affected by the time in the mold up to 6 hours. One study was completed by the Pacific Coast Conference Asphalt Specifications. It can be found on the pccas.org website. A survey of users was conducted regarding increasing the time in the mold to 6 hours and 60% of the users agreed. The other users who said no because they stated they could get the work done under 2 hours currently, which is not a scientific reason.


    Keywords

    asphalt binder; complex modulus; DSR; dynamic shear rheometer; Asphalt binder; Rheology/rheological properties; Rheometers;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    01-23-2014

    Technical Contact:
    Shauna Teclemariam

    Item:
    001

    Ballot:
    D04 (14-02)

    Status:
    Withdrawn From Balloting