Subsurface Utility and Interlayer Debonding Assessment Using Spectral Analysis of Surface Waves Method for Asphalt Pavements: Initial Findings

A single test system has been developed for a reliable, non-destructive, quantitative assessment of interlayer debonding, and qualitative assessment of buried objects or bottom-up fatigue cracking. Test bedding of this system was done on an in-situ asphalt pavement test facility specifically constructed for this purpose at IIT Kanpur, India. The pavement section incorporated different interlayer bonding, and anomaly conditions along with thermocouples for temperature profile measurement. The test system employed was specifically integrated for such evaluations, based on the Spectral Analysis of Surface Waves (SASW) method. The versatility in the capabilities of this test system was made possible by the development of a new information extraction technique that proved to be unsurpassingly successful, for quantification of subsurface assessments. This paper presents the details of the test system, information extraction automated technique, and the findings of the prominent studies conducted. Testing under different anomaly conditions and temperature profiles found the developed method to be reasonably accurate and reliable for quick, non-destructive assessment of interlayer bonding condition (quantitatively), and of buried object and bottom-up fatigue cracking (qualitatively). Further extensive testing on in-service pavements with different profiles, age and test conditions will help in developing standard test guidelines. The authors are currently working for automation of the field testing procedure for a quick and robust network level implementation.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AFD20 Standing Committee on Pavement Condition Evaluation.
• Authors:
  • Goel, Amit
• Conference:
  • Transportation Research Board 97th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2018-1-7 to 2018-1-11
• Date: 2018

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: 7p

Subject/Index Terms

• TRT Terms: Asphalt pavements; Automation; Debonding; Fatigue cracking; Nondestructive tests; Pavement interlayers; Test procedures
• Candidate Terms: Spectral analysis of surface waves
• Geographic Terms: Kanpur (India)
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 01661906
• Record Type: Publication
• Report/Paper Numbers: 18-06724
• Files: TRIS, TRB, ATRI
• Created Date: Mar 6 2018 4:22PM