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

Jongeun Baek, Imad L. Al-Qadi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationAirfield and Highway Pavements
Subtitle of host publicationEfficient Pavements Supporting Transportation's Future - Proceedings of the 2008 Airfield and Highway Pavements Conference
Pages74-85
Number of pages12
DOIs
StatePublished - 2008
Event2008 Airfield and Highway Pavements Conference: Efficient Pavements Supporting Transportation's Future - Bellevue, WA, United States
Duration: Oct 15 2008Oct 18 2008

Publication series

NameAirfield and Highway Pavements: Efficient Pavements Supporting Transportation's Future - Proceedings of the 2008 Airfield and Highway Pavements Conference
Volume329

Other

Other2008 Airfield and Highway Pavements Conference: Efficient Pavements Supporting Transportation's Future
CountryUnited States
CityBellevue, WA
Period10/15/0810/18/08

Keywords

  • Asphalt pavements
  • Cracking
  • Finite element method
  • Loads
  • Vehicles

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

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