01046119

Component

https://doi.org/10.3141/2037-08

http://scholar.google.com...oque&publication_year=2007

Top-down cracking has been found to be a predominant mode of distresses of asphalt pavements in Florida. Therefore, it is important to accommodate top-down cracking in the design of asphalt mixtures and pavement structures. After a multiyear study on top-down cracking supported by the Florida Department of Transportation, the University of Florida developed a top-down cracking model based on hot-mix asphalt fracture mechanics. This paper presents the implementation of the Florida cracking model into a mechanistic–empirical (M-E) flexible pavement design framework. Based on the energy ratio concept, a new M-E pavement design tool for top-down cracking has been developed. In the Level 3 M-E design, a series of semiempirical models were developed for estimation of time-dependent material properties. With incorporation of the material properties models, the design tool is capable of performing pavement thickness design as well as pavement life prediction for top-down cracking in Florida. The thickness design is optimized for different traffic levels, mixture types, and binder selections, and the optimization is an automated process. This design tool has been packed into Windows-based software, making it convenient to use for pavement design engineers.

01091283

English

pp 86-96

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309113014

Print

Figures (9) ; Photos (2) ; References (16)

Asphalt pavements; Fracture mechanics; Hot mix asphalt; Mechanistic-empirical pavement design; Pavement design; Pavement distress; Service life; Thickness

Microsoft Windows

Energy ratio; Top down cracking

Florida

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

PRP, TRIS, TRB, ATRI

Feb 8 2007 6:03PM

• Assessment of In Situ Dielectric Constant of Pavement Materials
• Determination of In-Place Hot-Mix Asphalt Layer Modulus for Rehabilitation Projects by a Mechanistic–Empirical Procedure
• Development and Influence of Statewide Axle Load Spectra on Flexible Pavement Performance
• Development and Significance of Statewide Volume Adjustment Factors in "Mechanistic-Empirical Pavement Design Guide"
• Development of a Simplified Design Procedure for Determining Layer Thickness in Long-Life Pavements
• Effect of Measured Three-Dimensional Tire–Pavement Contact Stress on Pavement Response at Asphalt Surface
• Environmental Effects on Deformation and Smoothness Behavior of Early-Age Jointed Plain Concrete Pavements
• Experimental and Analytical Investigations of the Mechanistic Effects of Dowel Misalignment in Jointed Concrete Pavements
• Fracture Behavior of Functionally Graded Concrete Materials for Rigid Pavements
• Implications of Uncertainty in Distress Measurement for Calibration of Mechanistic–Empirical Performance Models
• MnLayer: High-Performance Layered Elastic Analysis Program
• Variation of Crack Width over Time in Continuously Reinforced Concrete Pavement