EVALUATING MOISTURE SUSCEPTIBILITY OF ASPHALT MIXES

This research project utilized laboratory evaluations to study effects of freeze-thaw cycling on the tensile strength of eight Hot Mix Asphalt mixtures and to determine if the Georgia Loaded Wheel Tester could be utilized to measure moisture susceptibility of Hot Mix Asphalt mixtures. The evaluation involved eight Hot Mix Asphalt mixtures from combinations of two aggregate types and four asphalt-additive-aging possibilities. Laboratory testing was accomplished in the first phase with the production of 2.5 by 4 inch cores that were freeze-thaw cycled and tested for their indirect tensile strength following Wyoming modified AASHTO T283. The second phase was accomplished using 3 by 6 inch cores that were conditioned and tested for rutting using the Georgia Loaded Wheel Tester. Finally, a statistical analysis was performed to determine if performance of the various mixtures was significantly different in groups of asphalt types and to determine if the Georgia Loaded Wheel Tester was a viable measurement tool for moisture susceptibility.

• Record URL:
  https://www.ugpti.org/resources/reports/details.php?id=434
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/37310
• Corporate Authors:

  Mountain-Plains Consortium

  North Dakota State University
  Fargo, ND  United States  58108
• Authors:
  • Ksaibati, K
  • Hunter, E R
• Publication Date: 2002-11

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: 159 p.

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Evaluation; Freeze thaw tests; Hot mix asphalt; Laboratory tests; Measuring instruments; Pavement performance; Rutting; Statistical analysis; Tensile strength
• Identifier Terms: Georgia Loaded Wheel Tester
• Uncontrolled Terms: Moisture susceptibility
• Subject Areas: Data and Information Technology; Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00939313
• Record Type: Publication
• Report/Paper Numbers: MPC Report No. 02-138
• Files: NTL, TRIS
• Created Date: Mar 4 2003 12:00AM