Evaluation of multiple stress creep and recovery (MSCR) data for Arizona

Ryan Stevens, Jeff Stempihar, B. Shane Underwood, Dharminder Paul Pal

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    In the recently released AASHTO M332 asphalt binder specification, the Multiple Stress Creep and Recovery (MSCR) test replaces the current modulus and phase angle based method used for high temperature characterization. In anticipation of possible future adoption of this standard, the Arizona Department of Transportation (ADOT) has cataloged Multiple Stress Creep and Recovery (MSCR) test results on more than 375 different asphalt binder samples dating back to 2008. In this paper, this database is reviewed to evaluate potential implications of the adoption of a revised grading procedure based on the outcomes from the MSCR test. The database is graded in both the current and the M332 system to compare temporal changes in asphalt binder under both systems. The standard is then evaluated for its ability to detect polymer modified asphalt binder supplied in Arizona, and for the interaction between grade and temperature. It is found that under the M332 system the number of required grades for the state of Arizona would increase from the current number of eight to a total of fourteen. Future work includes the reduction of the total number of grades through engineering judgment and knowledge of asphalt binder selection based on local Arizona conditions. Under this review, Arizona asphalt binder suppliers may not necessarily have to add additional storage capacity to their facilities to accommodate a transition to the M332 standard.

    Original languageEnglish (US)
    Pages (from-to)337-345
    Number of pages9
    JournalInternational Journal of Pavement Research and Technology
    Volume8
    Issue number5
    DOIs
    StatePublished - Sep 1 2015

    Fingerprint

    Asphalt
    Binders
    Creep
    Recovery
    Specifications
    Temperature
    Polymers

    Keywords

    • Asphalt binder
    • Implementation
    • MSCR
    • Rheology
    • Rutting

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Civil and Structural Engineering

    Cite this

    Evaluation of multiple stress creep and recovery (MSCR) data for Arizona. / Stevens, Ryan; Stempihar, Jeff; Shane Underwood, B.; Pal, Dharminder Paul.

    In: International Journal of Pavement Research and Technology, Vol. 8, No. 5, 01.09.2015, p. 337-345.

    Research output: Contribution to journalArticle

    Stevens, Ryan ; Stempihar, Jeff ; Shane Underwood, B. ; Pal, Dharminder Paul. / Evaluation of multiple stress creep and recovery (MSCR) data for Arizona. In: International Journal of Pavement Research and Technology. 2015 ; Vol. 8, No. 5. pp. 337-345.
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