How good are linear viscoelastic properties of asphalt binder to predict rutting and fatigue cracking

Journal Article · Sun Aug 01 04:00:00 EDT 1999 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1361/105994999770346747· OSTI ID:6381340

Chen, J S; Tsai, C J ^[1]

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1. National Cheng Kung Univ., Tainan (Taiwan, Province of China). Dept. of Civil Engineering

This article evaluates the effects of linear viscoelastic properties of asphalt on pavement rutting and fatigue cracking. The parameters in the binder specification recently developed by the Strategic Highway Research Program (SHRP) were also compared for pavement performance. Two studies were conducted for asphalt-aggregate mixes. The first study was the wheel tracking test to evaluate the rutting of mixes containing three asphalts. The second study was a detailed field study of the effects of binder properties on the pavement performance of eight different sections. Results of both investigations indicated that SHRP parameters were not sufficient indicators for predicting the rutting and fatigue cracking of pavements. The discrepancies between performance data and existing parameters of the binder mainly resulted from the inherited assumptions made during the specification development, that is, stress- or strain-controlled mode and traffic loading frequency. In order to directly relate the linear viscoelastic properties of asphalt binders to pavement performance, calculating the dissipated energy per traffic cycle, W[sub d], became imperative. Fundamental derivation of W[sub d] was developed in this study. Results indicated that W[sub d] could predict the rutting and fatigue cracking of pavements reasonably well, This study, proposed the dissipated energy, W[sub d], as the single parameter for evaluating pavement rutting and fatigue cracking.

• OSTI ID: 6381340
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Vol. 8:4; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
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36 MATERIALS SCIENCE
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ASPHALTS
BITUMENS
CORRELATIONS
CRACKS
ELASTICITY
FATIGUE
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PAVEMENTS
PERFORMANCE
TAR
TENSILE PROPERTIES