Implementation of WisDOT Project 0092-01-02: Using the SuperPave Gyratory Compactor to Measure Mechanical Stability of WisDOT Asphalt Mixes

Due to the Wisconsin Department of Transportation's (WisDOT’s) commitment for the transitioning from the current empirical pavement design procedures to the new Mechanistic Pavement Design, WisDOT Project 0092-01-02: “Using the Gyratory Compactor to Measure Mechanical Stability of Asphaltic Mixtures” was selected as one of the first the research projects to implement. The project investigated the potential for the SuperPave Gyratory Compactor to provide estimates of the mechanical behavior of mixtures that can be used in the new design procedure. Mechanistic Pavement Design procedures require measurements collected with complex equipment and test methods in order to quantify the mechanical behavior of hot mix asphalt (HMA) mixes. These test methods are not practical enough to be used for quality control or quality assurance in practice. Also, logistical issues and high costs associated with equipment procurement and training has prevented WisDOT from cataloging common HMA mixes to date. These limitations identified the need for a surrogate test to allow industry and the agency to obtain information related to the mechanical properties of HMA mixtures commonly used in Wisonsin and to develop simple quality management test protocols. Research results from Project # 0092-01-02 showed potential to use the Superpave gyratory compactor, which is used currently for volumetric mixture design and for quality management as the surrogate test. The results of this test are expected to bridge the gap between specifying HMA mixtures based on only volumetrics, which is the current practice, and evaluating their mechanical properties, which will be needed for the new pavement design procedure. This implementation project served the purpose of synthesizing the fundamental concepts and recommendations published in the original research study report into a package that can easily be understood and applied to everyday practice.

• Record URL:
  http://wisdotresearch.wi.gov/wp-content/uploads/Final_Report.pdf
• 
• Corporate Authors:

  University of Wisconsin, Madison

  Department of Civil and Environmental Engineering
  1415 Engineering Drive
  Madison, WI  United States  53706

  Wisconsin Department of Transportation

  4802 Sheboygan Avenue
  Madison, WI  United States  53707

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Faheem, Ahmed F
  • Hanz, Andrew
  • Bahia, Hussain U
• Publication Date: 2008-9

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report of Implementation Activities
• Features: Appendices; Figures; Tables;
• Pagination: 32p

Subject/Index Terms

• TRT Terms: Gyratory testing machines; Hot mix asphalt; Mechanics; Pavement design; Superpave; Volumetric analysis
• Subject Areas: Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01363766
• Record Type: Publication
• Report/Paper Numbers: WHRP 0092-06-08
• Files: TRIS, USDOT, STATEDOT
• Created Date: Feb 24 2012 7:20AM