Relating asphalt binder elastic recovery properties to HMA crack modeling and fatigue life prediction

Relating asphalt binder elastic recovery properties to HMA crack modeling and fatigue life prediction

•Binder elastic recovery is hypothesized to play a significant role in the fatigue cracking resistance.•Two standardized tests are used to characterize binder elastic recovery properties.•Two laboratory tests are used to characterize HMA properties of stiffness and fracture.•HMA with high binder ela...

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Veröffentlicht in:Construction & building materials 2016-05, Vol.111, p.644-651
Hauptverfasser: Zhang, Jun, Simate, Geoffrey S., Lee, Sang Ick, Hu, Sheng, Walubita, Lubinda F.
Format: Artikel
Sprache:eng
Schlagworte:
Analysis
Asphalt binder
Cracking
Elastic recovery
Elasticity
Fatigue life
Fracture properties
HMA
Mechanical properties
Mechanistic-empirical (M-E)
MSCR
Pavements, Asphalt
TxME
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Beschreibung
Zusammenfassung:•Binder elastic recovery is hypothesized to play a significant role in the fatigue cracking resistance.•Two standardized tests are used to characterize binder elastic recovery properties.•Two laboratory tests are used to characterize HMA properties of stiffness and fracture.•HMA with high binder elastic recovery properties (⩾59%) has a long M-E predicted fatigue life.•No clear trend is observed in predicted fatigue life for HMA with low elastic recovery (150months), which was also consistent with other studies and field performance observations. For mixes with low elastic recovery properties (
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2016.02.175