Implementation of Low Temperature Tests for Asphalt Mixtures to Improve the Longevity of Road Surfaces

Field samples were obtained from cores taken from multiple roads around the Salt Lake Valley in Utah and prepared for Bending Beam Rheometer (BBR) testing. The response of field cores showed that even though the binder grade used in the region is the same, the resulting mixtures have significant differences in creep moduli and m-values. This indicates that binder testing alone might not be enough to control the material’s creep modulus. The combination of BBR test results and field surveys indicate that both creep modulus and m-value play a significant role in low-temperature performance of asphalt pavements. Pavements with high creep moduli and low m-values are more susceptible to low-temperature thermal distress. From field observations, the field performance of each section was known; by plotting the test results of the field samples on a Black Space Diagram, it can be observed that a thermal stress failure envelope might exist. These results will allow the development of asphalt mixtures that have resistance to both low and high temperature distresses. However, more research will be necessary to further define this specification

• Record URL:
  • https://www.ugpti.org/resources/reports/details.php?id=758
• 
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/26864
• Supplemental Notes:
  • This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  Mountain Plains Consortium

  Civil & Environmental Engineering
  122 S. Central Campus Drive
  Salt Lake City, UT  United States  84112-0561

  Upper Great Plains Transportation Institute

  North Dakota State University
  1320 Albrecht Boulevard
  Fargo, ND  United States  581052

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Romero, Pedro
  • Jones, ZacGary L
• Publication Date: 2013-12

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: 40p

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Asphalt pavements; Creep properties; Field studies; Low temperature; Pavement performance; Performance tests; Rheological properties; Thermal stresses
• Geographic Terms: Salt Lake Valley (Utah)
• Subject Areas: Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01505568
• Record Type: Publication
• Report/Paper Numbers: MPC-13-260
• Contract Numbers: MPC Project #391
• Files: UTC, NTL, TRIS, RITA, ATRI, USDOT
• Created Date: Jan 27 2014 11:27AM