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    Effect of Evotherm-M1 on Properties of Asphaltic Materials Used at NAPMRC Testing Facility

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    Issue Date
    2019-12-30
    Author
    Bazzaz, Mohammad
    Darabi, Masoud K.
    Little, Dallas N.
    Garg, Navneet
    Publisher
    ASTM International
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Rights
    Copyright by ASTM Int'l (all rights reserved); Tue Feb 23 15:33:44 EST 2021 Downloaded/printed by Kansas University (Kansas University) pursuant to License Agreement. No further reproductions authorized
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    Abstract
    Rheological properties of asphalt binders significantly affect distress development and performance of asphalt concrete materials. This article presents the effect of Evotherm-M1 modifications on rheological properties of asphalt binders used in the construction of test sections at the Federal Aviation Administration’s National Airport Pavement & Materials Research Center. Four different binders (i.e., polymer styrene butadiene styrene [SBS]-modified PG 76-22, PG 64-22, SBS-modified PG 76-22 plus Evotherm-M1, and PG 64-22 plus Evotherm-M1) are studied. Multiple stress creep recovery (MSCR) and strain-controlled frequency sweep (FS) test results are analyzed to construct the master curves for the binders. Results indicate high sensitivity of SBS-modified PG 76-22 to Evotherm-M1 modifications as compared with PG 64-22. Subsequently, the results of dynamic modulus tests conducted on asphalt mixture specimens (prepared using job mix formula and different binders) are analyzed to investigate the effect of binder type and modification on rheological properties and rutting performance of asphalt mixtures. It is shown that the rutting resistance and rheological properties of asphalt mixtures can be ranked based on the results of MSCR and FS tests conducted on asphalt binders. It is shown that the rutting resistivity of traffic test sections and lab-tested asphalt mixtures can be ranked as follows: SBS-modified PG 76-22, SBS-modified PG 76-22 plus Evotherm-M1, PG 64-22, and PG 64-22 plus Evotherm-M1. This is consistent with the results obtained for tested asphalt binders.
    URI
    http://hdl.handle.net/1808/31457
    DOI
    https://doi.org/10.1520/JTE20190446
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    • Civil, Environmental & Architectural Engineering Scholarly Works [120]
    Citation
    M. Bazzaz, M. Darabi, D. Little, and N. Garg, "Effect of Evotherm-M1 on Properties of Asphaltic Materials Used at NAPMRC Testing Facility," Journal of Testing and Evaluation 48, no. 3 (2020): 2256-2269. https://doi.org/10.1520/JTE20190446

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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