01124811

Component

https://doi.org/10.3141/2127-17

http://scholar.google.com...Qadi&publication_year=2009

A major study of reflective cracking of asphalt overlays that are used in conjunction with interlayer systems for reflective-crack control was recently completed. In this cooperative study at the Illinois Center for Transportation, three field projects in central Illinois were selected and extensive coring was performed. Six fundamentally different types of hot-mix asphalt overlay mixtures, which were expected to demonstrate significantly different levels of fracture resistance, were obtained from coring. To evaluate the fracture resistance of these mixtures in the field and the laboratory, visual field crack surveys and a series of advanced laboratory tests were conducted. This paper presents field performance evaluation results for the performance–benefit ratio and laboratory performance evaluation results for creep stiffness (S sub t), complex modulus (E*), and disk-shaped compact tension fracture energy (G sub f). Field performance of pavement sections with premium overlay mixtures was found to be superior to those sections containing conventional overlay materials. The polymer-modified overlay section in one of three projects was found to have performance inferior to that of the unmodified control overlay section of the same project. This tendency was detected by the G sub f test but not by the S sub t or the E* tests. The S sub t and G sub f values obtained for the interlayer mixtures were consistent with results typically obtained on short-term aged specimens, validating the appropriateness of the coring and testing approach used here as a forensic investigation tool and indicating that little aging had occurred in the bottom of the overlay system.

01147872

09-3643

English

pp 146-154

2009

Transportation Research Record: Journal of the Transportation Research Board

9780309142687

Print

Figures (5) ; Photos (2) ; References (17) ; Tables (4)

Asphalt mixtures; Bituminous overlays; Core samples; Cracking; Creep; Field tests; Hot mix asphalt; Laboratory tests; Reflection cracking; Stiffness; Tension

Complex modulus; Fracture energy; Fracture resistance

Illinois

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

TRIS, TRB, ATRI

Jan 30 2009 8:03PM

• Application of Artificial Neural Networks for Estimating Dynamic Modulus of Asphalt Concrete
• Application of Generalized J-Integral to Crack Propagation Modeling of Asphalt Concrete Under Repeated Loading
• Comparison of Low-Temperature Field Performance and Laboratory Testing of 10 Test Sections in the Midwestern United States
• Determining Representative Volume Elements of Asphalt Concrete Mixtures Without Damage
• Effective Temperature for Analysis of Permanent Deformation and Fatigue Distress on Asphalt Mixtures
• Evaluation and Application of Long-Lasting Asphalt Mixture
• Evaluation of Aspects of E* Test Using Hot-Mix Asphalt Specimens with Varying Void Contents
• Evaluation of Embedded Discontinuity Method for Finite Element Analysis of Cracking of Hot-Mix Asphalt Concrete
• Evaluation of Fatigue Models of Hot-Mix Asphalt Through Laboratory Testing
• Forensic Investigation and Validation of Energy Ratio Concept
• Identification of Parameters Related to Moisture Conditioning That Cause Variability in Modified Lottman Test
• Interface Bonding Between Hot-Mix Asphalt and Various Portland Cement Concrete Surfaces: Assessment of Accelerated Pavement Testing and Measurement of Interface Strain
• Long-Term Monitoring of Noise and Frictional Properties of Three Pavements: Dense-Graded Asphalt, Stone Matrix Asphalt, and Porous Friction Course
• Low Design Temperatures of Asphalt Pavements in Dry–Freeze Regions: Predicting by Means of Solar Radiation, Transient Heat Transfer, and Finite Element Method
• Micromechanical Modeling of Hot-Mix Asphalt Mixtures by Imaging and Discrete Element Methods
• Precision of AASHTO TP62-07 for Use in Mechanistic-Empirical Pavement Design Guide for Flexible Pavements
• Refinement of Flow Number as Determined by Asphalt Mixture Performance Tester: Use in Routine Quality Control–Quality Assurance Practice
• Using Dynamic Modulus Test to Evaluate Moisture Susceptibility of Asphalt Mixtures
• Utilizing Small Samples to Predict Fatigue Lives of Field Cores: Newly Developed Formulation Based on Viscoelastic Continuum Damage Theory