Performance Evaluation of Asphalt Overlays in Alberta using Long Term Pavement Performance Specific Pavement Study 5 Sections

Performance data collected for the Long Term Pavement Performance program (LTPP)'s Specific Pavement Studies (SPS) 5 in Alberta was used to investigate overlay performance in Alberta's climate conditions. Comparison of peak deflection during the Falling Weight Deflectometer (FWD) test for different overlay sections with respect to the control section in seven test years showed that all overlays improved structural capacity of the pavement. The overlay thickness was found to be the most statistically significant factor to the pavement's structural response in comparison to pre-overlay conditions (milling) and asphalt mixture type. Further, overlay thickness and mixture type were found to be the most effective factors to alligator and transverse cracking, respectively. The Mechanistic Empirical Pavement Design Guide (MEPDG)-predicted International Roughness Index (IRI) was higher than the measured values in most years. The MEPDG-predicted pavement rutting was most sensitive to pavement structural design.

• Record URL:
  https://doi.org/10.6135/ijprt.org.tw/2014.7(1).60
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19966814
• Supplemental Notes:
  • Abstract used by permission of publisher.
• Authors:
  • Norouzi, Meisam
  • Nassiri, Somayeh
  • Haghi, Negar Tavafzadeh
  • Bayat, Alireza
• Publication Date: 2014-1

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 60-68
• Serial:
  • International Journal of Pavement Research and Technology
  • Volume: 7
  • Issue Number: 1
  • Publisher: Chinese Society of Pavement Engineering
  • ISSN: 1996-6814
  • EISSN: 1997-1400
  • Serial URL: http://www.ijprt.org.tw/index.php
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Bituminous overlays; Falling weight deflectometers; Pavement design; Pavement performance; Performance tests
• Identifier Terms: Long-Term Pavement Performance Program; Specific Pavement Studies (LTPP)
• Geographic Terms: Alberta (Canada)
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01518675
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 20 2014 1:39PM