Pothole Patching Material for Epoxy Asphalt Pavement on Steel Bridges: Fatigue Test and Numerical Analysis

Various patching materials and field procedures have been studied in order to repair potholes on highway asphalt pavements. However, only a few publications have focused on patching materials for epoxy asphalt pavement which has been widely used on steel bridge decks. Considering the requirements of steel deck pavements, a patching material was developed using a fast cure thermosetting binder and a fine gradation. Then, to evaluate the fatigue performance of patched structures, a three-point bending fatigue test was conducted on three types of composite beams under four different stress ratios. After that, the Prony series presentation of the generalized Maxwell model was obtained and used to analyze the viscoelastic response of patched structures. The results showed that the fatigue test on composite beams performed well on exposing the vulnerable parts of patched structures. The developed patching material had a smaller dynamic modulus and performed better in fatigue resistance than commonly used epoxy asphalt mixture. Nevertheless, with the tensile stress concentration on it, the vertical patching interface became a potential fracture section and reduced the fatigue life of the patched structure.

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• Supplemental Notes:
  • This paper was sponsored by TRB committee AHD25 Sealants and Fillers for Joints and Cracks. Alternate title: A Pothole Patching Material for Epoxy Asphalt Pavement on Steel Bridges: Fatigue Test and Numerical Analysis.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Yang, Yuming
  • Qian, Zheng-dong
  • Song, Xin
• Conference:
  • Transportation Research Board 94th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2015-1-11 to 2015-1-15
• Date: 2015

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: 14p
• Monograph Title: TRB 94th Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Asphalt based materials; Asphalt pavements; Bridge decks; Dynamic modulus of elasticity; Epoxides; Fatigue tests; Patching; Potholes; Steel bridges
• Uncontrolled Terms: Epoxy asphalt
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials; Pavements; I31: Bituminous Binders and Materials; I60: Maintenance;

Filing Info

• Accession Number: 01550541
• Record Type: Publication
• Report/Paper Numbers: 15-2557
• Files: PRP, TRIS, TRB, ATRI
• Created Date: Jan 24 2015 5:08PM