• English
    • العربية
  • العربية
  • Login
  • QU
  • QU Library
  •  Home
  • Communities & Collections
  • Help
    • Item Submission
    • Publisher policies
    • User guides
    • FAQs
  • About QSpace
    • Vision & Mission
View Item 
  •   Qatar University Digital Hub
  • Qatar University Institutional Repository
  • Academic
  • Faculty Contributions
  • College of Engineering
  • Civil and Environmental Engineering
  • View Item
  • Qatar University Digital Hub
  • Qatar University Institutional Repository
  • Academic
  • Faculty Contributions
  • College of Engineering
  • Civil and Environmental Engineering
  • View Item
  •      
  •  
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Effect of Aging on Viscoelastic Properties of Asphalt Mixtures

    Thumbnail
    Date
    2019
    Author
    Sirin O.
    Paul D.K.
    Khan M.S.
    Kassem E.
    Darabi M.K.
    Metadata
    Show full item record
    Abstract
    This study presents a comprehensive laboratory evaluation and statistical analysis of the effect of aging on the viscoelastic properties of asphalt mixtures. Asphalt mixtures were subjected to different short- and long-term aging temperatures and durations. A factorial study with three short-term aging temperatures (125°C, 135°C, and 145°C), four different short-term aging durations (2, 4, 6, and 8 h), three long-term aging temperatures (75°C, 85°C, and 95°C), and six different aging levels (0, 2, 4, 6, 8, and 10 days) was conducted. Results from dynamic modulus testing in an asphalt mixture performance tester (AMPT) indicate that aging temperature and duration have a significant effect on the viscoelastic properties of asphalt mixtures. Statistical analysis using multivariate analysis of variance (MANOVA) was also conducted to investigate the significance of short- and long-term aging temperatures and duration on the viscoelastic response of mixtures. It was found that short- and long-term aging temperatures and times have a substantial effect on the dynamic modulus. The analysis also revealed the effect of aging conditions on the fitting parameters of the master curves to provide a better insight on the changes in the viscoelastic properties of asphalt mixture as a result of aging. To evaluate the viscoelastic response of asphalt mixture due to aging, Prony analysis was also performed on the dynamic modulus data using a newly developed parameter A (i.e., oxidative aging state variable). A positive correlation was found between A and both the temperature and long-term aging duration in terms of mechanical properties (dynamic modulus) of asphalt mixture.
    DOI/handle
    http://dx.doi.org/10.1061/JPEODX.0000137
    http://hdl.handle.net/10576/13652
    Collections
    • Civil and Environmental Engineering [‎869‎ items ]

    entitlement


    Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

    Contact Us | Send Feedback
    Contact Us | Send Feedback | QU

     

     

    Home

    Submit your QU affiliated work

    Browse

    All of Digital Hub
      Communities & Collections Publication Date Author Title Subject Type Language Publisher
    This Collection
      Publication Date Author Title Subject Type Language Publisher

    My Account

    Login

    Statistics

    View Usage Statistics

    About QSpace

    Vision & Mission

    Help

    Item Submission Publisher policiesUser guides FAQs

    Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

    Contact Us | Send Feedback
    Contact Us | Send Feedback | QU

     

     

    Video