01365599

Component

https://doi.org/10.3141/2296-08

http://scholar.google.com...+Kim&publication_year=2012

Aging has long been recognized as a contributing factor to fatigue distress of asphalt concrete pavement. Several research studies have been undertaken to gain fundamental understanding of the aging phenomenon at the asphalt binder level. However, relatively little effort has been made to understand and to quantify the effects of aging on fundamental characteristics of asphalt mixtures. The effects of oxidative aging on the dynamic modulus and the fatigue performance of asphalt mixtures is examined. For this purpose, an asphalt mixture is aged in the laboratory at four aging levels. Mechanical tests for the four aged mixtures are performed to characterize the linear viscoelastic and damage properties. Such characterization is investigated to incorporate the aging effects into a more comprehensive analytical framework for predicting the performance of asphalt concrete pavements. Finally, this framework is used to evaluate the aging effects on an example asphalt concrete pavement. It is found that aging can significantly change the performance of an asphalt concrete pavement, depending on the location evaluated within the pavement structure as well as climate conditions.

01457891

12-2328

English

pp 77–85

2012

Transportation Research Record: Journal of the Transportation Research Board

9780309262965

Print

Figures; References; Tables

Aging (Materials); Asphalt concrete pavements; Asphalt mixtures; Dynamic modulus of elasticity; Fatigue (Mechanics); Pavement performance; Viscoelasticity

Oxidative hardening

Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials

PRP, TRIS, TRB, ATRI

Feb 8 2012 5:09PM

• Asphalt Pavement Analyzer Used to Assess Rutting Susceptibility of Hot-Mix Asphalt Designed for High Tire Pressure Aircraft
• Calibrating and Validating Overlay Tester–Based Fatigue Cracking Model with Data from National Center for Asphalt Technology
• Characterization of Fracture Properties of Asphalt Mixtures as Measured by Semicircular Bend Test and Indirect Tension Test
• Construction of Dynamic Modulus Master Curves with Resilient Modulus and Creep Test Data
• Determining Damage Development in Hot-Mix Asphalt with Use of Continuum Damage Mechanics and Small-Scale Accelerated Pavement Test
• Development of Autonomous Setup for Evaluating Self-Healing Capability of Asphalt Mixtures
• Effect of Mode of Loading on Viscoelastic and Damage Properties of Asphalt Concrete
• Evaluation of Asphalt Mixture Performance Tester: Utah Experience
• Hot-Mix Asphalt Permanent Deformation Evaluated by Hamburg Wheel Tracking, Dynamic Modulus, and Repeated Load Tests
• Incremental Model for Prediction of Permanent Deformation of Asphalt Concrete in Compression
• Method to Quantify Healing in Asphalt Composites by Continuum Damage Approach
• Modeling Thermal Stress in Asphalt Mixtures Undergoing Glass Transition and Physical Hardening
• Scanning Laser Detection System Used to Measure Propagation of Fatigue Damage of Asphalt Mixes
• Simplified Viscoelastic Continuum Damage Model as Platform for Asphalt Concrete Fatigue Analysis