Damage Characterization in Existing Asphalt Layer Concrete for ME Rehabilitation Design

In this paper, damage characterization of existing asphalt concrete (AC) layer for the purpose of mechanistic-empirical (ME) rehabilitation design is studied. Structural condition of existing AC layer in AASHTOWare Pavement ME design is characterized in terms of the modulus estimated from falling weight deflectometer (FWD) testing for Level 1 rehabilitation design. On the other hand, damage is estimated from the amount of fatigue cracking at the pavement surface for design Level 2. For this study, data were extracted from the Long-Term Pavement Performance (LTPP) database and used to develop time-series data for FWD, AC dynamic modulus and cracking for calculating pavement damage in accordance with the ME design methodology. Optimization analysis was performed to calibrate the AC damage model by minimizing the error between fatigue cracking values predicted from ME design Levels 1 and 2, and those from field measurements.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AFD80 Standing Committee on Pavement Structural Modeling and Evaluation. Alternate title: Damage Characterization in Existing Asphalt Concrete Layer for M-E Rehabilitation Design.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Ayyala, Dinesh
  • Lee, Hyung Suk
  • Von Quintus, Harold
• Conference:
  • Transportation Research Board 96th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2017-1-8 to 2017-1-12
• Date: 2017

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 15p
• Monograph Title: TRB 96th Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Asphalt concrete pavements; Calibration; Databases; Dynamic modulus of elasticity; Falling weight deflectometers; Fatigue cracking; Mathematical models; Mechanistic-empirical pavement design; Optimization; Rehabilitation; Time series analysis
• Identifier Terms: AASHTOWare (Software); Long-Term Pavement Performance Program
• Uncontrolled Terms: Pavement damage
• Subject Areas: Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 01626240
• Record Type: Publication
• Report/Paper Numbers: 17-06222
• Files: TRIS, TRB, ATRI
• Created Date: Feb 20 2017 4:44PM