Forensic laboratory tests to evaluate long-term performance of reclaimed asphalt pavements: Connecticut case study

This paper presents the most significant findings from the forensic evaluation of the long-term cracking performance of asphalt mix designs on the six Long-term Pavement Performance Special Pavement Study (LTPP SPS)-9A sections on Route 2 in Connecticut. The experiment targeted the comparison of permeability, stiffness, and low-temperature behaviour of Marshall and Superpave mixes with various performance grades of binders and reclaimed asphalt pavement content. The laboratory tests included measuring hydraulic conductivity by a Flexible Wall Permeameter, dynamic complex modulus by the Asphalt Mixture Performance Tester (AMPT), creep compliance and tensile strength by Indirect Tension Test, and fracture properties by Semi-Circular Beam (SCB) test. The evaluation of field performance included analysis of deflection basins and back-calculated elastic moduli from Falling Weight Deflectometer data as well as visual evaluation of surface distresses, such as cracking and weathering.

• Record URL:
  https://doi.org/10.1080/14680629.2016.1266767
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
• Supplemental Notes:
  • Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Yut, Iliya
  • Mahoney, James
  • McDonnel, Anne-Marie
• Conference:
  • 91st Association of Asphalt Paving Technologists' Annual Meeting
  • Location: Indianapolis Indiana, United States
  • Date: 2016-3-13 to 2016-3-16
• Publication Date: 2017-1

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 311-335
• Serial:
  • Road Materials and Pavement Design
  • Volume: 18
  • Issue Number: sup1
  • Publisher: Taylor & Francis
  • ISSN: 1468-0629
  • EISSN: 2164-7402
  • Serial URL: http://www.tandfonline.com/loi/trmp20

Subject/Index Terms

• TRT Terms: Case studies; Creep tests; Forensic science; Fracture mechanics; Fracture tests; Laboratory tests; Low temperature; Pavement performance; Reclaimed asphalt pavements; Tensile strength; Thermal degradation
• Geographic Terms: Connecticut
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01631175
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 29 2017 2:47PM