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Mid-America Transportation Center

Accelerated Testing of Warm Asphalt Mixtures for Safe and Reliable Freight Transportation

Final Report

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project report

Presentation Link

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presentation report

Webinar Video

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Webinar Video


Researchers

  • Principal Investigator: Hosin Lee (hlee@engineering.uiowa.edu 319-335-6818)
  • Co-Principal Investigator: Mustaque Hossain (mustak@ksu.edu (785) 532-1576)
  • Graduate Students
  • Robert Steffens
  • Brandon Bortz
  • Undergraduate Students
  • Luke McIntosh
  • Project Status
    Complete
    Sponsors & Partners
  • Kansas State University
  • About this Project
    Brief Project Description & Background
    In previous studies at the University of Iowa, various WMA mixtures were tested in the laboratory for stiffness, rutting, and moisture resistance. To validate these laboratory results and to predict the field performance, it is proposed to test select WMA mixtures using the accelerated testing equipment in both laboratory and at an APT facility.
    Research Objective
    The objective of this project is to validate the results of previously done laboratory tests and to predict the field performance using the accelerated testing equipment in both laboratory and at an APT facility.
    Potential Benefits
    The main product anticipated from this research is the accelerated performance of WMA materials and experiences of building test section with select WMA additives. This information would be very useful for all pavement engineers in Region 7, who are interested in WMA.
    Abstract
    Warm Mix Asphalt (WMA) is moving rapidly into the mainstream of the asphalt pavement construction in the United States due to the reduced fuel consumption, less carbon dioxide emission, longer paving season, longer hauling distance, reduced oxidation of asphalt, early opening to traffic and a better working environment in the field. To meet the growing demand from the public agencies and recently, NCAT proposed a national WMA certification program (Kvasnak et al. 2010). It requires a full-scale test in their test track in Auburn, Alabama, where their full-scale test results may not be relevant to the performance of WMA pavements in the mid-west Region 7 because the climate and soil condition at NCAT test track are different. In previous studies at the University of Iowa, various WMA mixtures were tested in the laboratory for stiffness, rutting, and moisture resistance. To validate these laboratory results and to predict the field performance, it is proposed to test select WMA mixtures using the accelerated testing equipment in both laboratory and at an APT facility. The results from the accelerated tests will help contractors build safe and reliable WMA pavements for heavier truck traffic with a high tire pressure.
    Project Amount
    $ 19,998