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Title:

Characterization of Asphalt Materials Common to Michigan in Support of the Implementation of the Mechanistic-Empirical Pavement Design Guide

Accession Number:

01518316

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

The Mechanistic-Empirical Pavement Design Guide (M-E PDG) is becoming the state-of-the-practice in both newly constructed and rehabilitated pavement designs. The M-E PDG utilizes semi-mechanistic and semi-empirical models to predict the distresses such as fatigue cracking, rutting and thermal cracking in asphalt pavements. In flexible (asphalt) pavement design, the most important required material input for the Level 1 analysis is the Dynamic Modulus (|E*|) master curve of asphalt mixtures. Whereas in Levels 2 and 3 analysis, predictive dynamic modulus equations are used to generate |E*| values. The main objective of the study presented in this paper was to develop analytical models to provide improved |E*| predictions of asphalt mixtures used in the State of Michigan. For this, the modified Witczak’s dynamic modulus predictive equation used in the M-E PDG was evaluated for asphalt mixtures commonly used in the State of Michigan. In total, 64 unique asphalt mixtures sampled from different projects in Michigan were characterized in this research. The study showed significant differences between laboratory measured and predicted |E*| values especially at the high temperature/low frequencies. Using the laboratory |E*| data collected in this study, the MATLAB software was used to calibrate the coefficients of the modified Witczak’s equation. The new coefficients were used in the |E*| predictive equation and showed improved predictions. In addition, an Artificial Neural Network (ANN) model was developed and trained for Michigan asphalt mixtures to further improve the |E*| predictions.

Supplemental Notes:

This paper was sponsored by TRB committee AFD60 Flexible Pavement Design.

Monograph Accession #:

01503729

Report/Paper Numbers:

14-3992

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Jamrah, Anas
Kutay, M Emin
Ozturk, Hande I

Pagination:

17p

Publication Date:

2014

Conference:

Transportation Research Board 93rd Annual Meeting

Location: Washington DC
Date: 2014-1-12 to 2014-1-16
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Geographic Terms:

Michigan

Subject Areas:

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials

Source Data:

Transportation Research Board Annual Meeting 2014 Paper #14-3992

Files:

TRIS, TRB, ATRI

Created Date:

Jan 27 2014 3:23PM