EVALUATION OF THE LOADED WHEEL TESTER

This study was conducted to evaluate a new procedure to assess the rutting potential of asphalt mixes. The primary objectives were to: (1) Verify the correlation between the Loaded Wheel Tester (LWT) predicted performance and actual field performance of asphalt concrete mixtures used in Florida; (2) Compare LWT results with Marshall properties and with shear properties of mixtures measured using the Corps of Engineers' Gyratory Testing Machine (GTM); and (3) Evaluate the potential of the LWT test method to be used on a routine basis for improved assessment of rutting susceptibility during the mix design process. Since the LWT is prototypical, much of this study was also concerned with refining the device and the procedure, and evaluating some of the testing variables.

• Corporate Authors:

  Florida Department of Transportation

  State Materials Office, Materials Research Park, 5007 Northeast 39th Avenue
  Gainesville, FL  United States  32609

  Federal Highway Administration

  Office of Technology Applications, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • West, R C
  • Page, G C
  • Murphy, K H
• Publication Date: 1991-12

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 65 p.

Subject/Index Terms

• TRT Terms: Alternatives analysis; Asphalt concrete; Asphalt mixtures; Correlation analysis; Forecasting; Gyratory testing machines; Performance; Prototypes; Ruts (Pavements)
• Uncontrolled Terms: Field performance; Loaded wheel tester; Rut; Susceptibility
• Old TRIS Terms: Gyratory tests; Marshall properties
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00623645
• Record Type: Publication
• Report/Paper Numbers: FL/DOT/SMO/91-391, FHWA/SA-94/023
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jul 31 1992 12:00AM