Research on RLWT and APA Rutting Loading Mode Based on Digital Image Technology

In order to compare the difference of loading mode between the RLWT (rotary loaded wheel tester) and the APA, the specimens were compacted using the same gradation under different compaction times, the rutting tests were conducted using RLWT and the APA. Moreover, the images of specimens profile were processed with digital image technology, and the equivalent diameters of coarse aggregates were extracted and analyzed. The results show that the angle between the long axis of coarse aggregate and X-axis increases gradually for RLWT, oppositely, the angle between the long axis of coarse aggregate and X-axis decreases gradually for APA, which is agree with the movement direction of aggregates in the open traffic pavement. The study indicates that it exist great difference of loading mode between the RLWT and the APA, the research for the extensive promotion of RLWT should be further conducted.

• Record URL:
  https://doi.org/10.1061/9780784481240.042
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784481240
• Supplemental Notes:
  • © 2018 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Wan, Cheng
  • Yi, Qiang
  • Yang, Bin
  • Xu, Ke
  • Meng, Yongjun
  • Rong, Hongliu
• Conference:
  • Transportation Research Congress 2016
  • Location: Beijing , China
  • Date: 2016-6-6 to 2016-6-8
• Publication Date: 2018-2

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 400-408
• Monograph Title: Transportation Research Congress 2016: Innovations in Transportation Research Infrastructure

Subject/Index Terms

• TRT Terms: Coarse aggregates; Image processing; Load tests; Rutting
• Identifier Terms: Asphalt Pavement Analyzer; Rotary Asphalt Wheel Tester
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 01872079
• Record Type: Publication
• ISBN: 9780784481240
• Files: TRIS, ASCE
• Created Date: Jan 30 2023 10:27AM