LABORATORY EVALUATION OF RUTTING IN ASPHALT PAVEMENTS

The feasibility of using the Georgia Loaded-Wheel Tester (GLWT) to predict rutting in the laboratory was investigated in this research. The research was performed in two phases. The first phase consisted of modifying the GLWT to handle 15.2 cm (6 in) cores, developing a laboratory compaction procedure for cores, determining the optimum laboratory testing conditions, and investigating the repeatability of the GLWT. The second phase of the study included correlating rut depth values obtained with the GLWT to actual field rut depth values, utilizing the GLWT to evaluate the effects of the asphalt additive SOMAT on asphalt concrete mixes, and evaluating the rut resistance of Stone Matrix Asphalt (SMA). Results from the study show that the GLWT is capable of predicting rutting in asphalt pavements prior to construction. In addition, results from the GLWT correlate well with results from more expensive European Testers.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=442
• Corporate Authors:

  University of Wyoming, Laramie

  Wyoming Survey and Analysis Center, 710 Garfield
  Laramie, WY  United States  82070

  Wyoming Department of Transportation

  5300 Bishop Boulevard
  Cheyenne, WY  United States  82009-3340
• Authors:
  • Ksaibati, K
  • Miller, T
  • Farrar, M J
• Publication Date: 1996-9

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: 162 p.

Subject/Index Terms

• TRT Terms: Additives; Asphalt concrete; Asphalt pavements; Forecasting; Laboratory tests; Paving; Rutting; Stone matrix asphalt
• Uncontrolled Terms: Rut depth
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00728813
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Nov 19 1996 12:00AM