Finite Element Modeling of Reflective Cracking under Moving Vehicular Loading: Investigation of the Mechanism of Reflective Cracking in Hot-Mix Asphalt Overlays Reinforced with Interlayer Systems

The fracture mechanism of reflective cracking in hot-mix asphalt (HMA) overlay was investigated using a three-dimensional finite element model utilizing the cohesive zone model. The effectiveness of interlayer systems to abate reflective cracking in overlays was evaluated. A fractured area due to potential reflective cracking was calculated at a region in which cohesive elements were inserted. A represent fracture area (RFA) is introduced as a weighted average value of degradation to calculate the fractured area. Utilizing global and local RFAs, the mechanism of reflective cracking is investigated for HMA overlay with interlayer systems. For various interlayer systems, this study found that different reflective cracking patterns occurred in terms of quantity and distribution. The sand mix interlayer reduces reflective cracking in leveling binder at the beginning; however, steel netting interlayer retards reflective cracking in wearing surface as well as leveling binder.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784410059
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Baek, Jongeun
  • Al-Qadi, Imad L
• Conference:
  • Airfield and Highway Pavements. The 2008 Airfield and Highway Pavements Conference
  • Location: Bellevue WA, United States
  • Date: 2008-10-15 to 2008-10-18
• Publication Date: 2009

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 74-85
• Monograph Title: Airfield and Highway Pavements. Efficient Pavements Supporting Transportation's Future

Subject/Index Terms

• TRT Terms: Degradation failures; Finite element method; Fracture properties; Hot mix asphalt; Live loads; Pavement design; Pavement overlays
• Uncontrolled Terms: Interlayers (Pavements); Reflective cracking; Steel nets
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01144331
• Record Type: Publication
• ISBN: 9780784410059
• Files: TRIS
• Created Date: Nov 17 2009 2:58PM