Impact of asphalt concrete fatigue endurance limit definition on pavement performance prediction

W. A. Zeiada, B. S. Underwood, Kamil Kaloush

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Many well-constructed Hot Mix Asphalt pavements have been in service for 40 or more years without any evidence of fatigue cracking. This field experience suggests that there exists a strain level, known as the fatigue endurance limit (FEL), below which an asphalt concrete pavement will not exhibit fatigue cracks. Several studies have been conducted to define and verify this limit. Each of these methods is associated with certain assumptions regarding the nature of the FEL and heretofore a comprehensive comparison of each has not been made using a consistent set of mixtures. Likewise, the impact of any observed differences in FEL on the predicted pavement performance has not been made. This paper investigates and compares six different methods for identifying the FEL: NCHRP 9–44A approach, simplified viscoelastic continuum damage model, smeared-healing with continuum damage model, plateau value approach, pseudo-strain analysis method, and reduced cycles method. Each method is found to yield different values ranges from approximately 30–170 microstrains at 21.1 °C. The predicted FEL from each of the six methods are then used with the mechanistic empirical design algorithm to evaluate their effects on predicted pavement performance. Simulation outputs show different pavement performance and perpetual pavement structural design thicknesses from each of the methods. The study outcomes are expected to benefit future field verification research of FEL as it provides comprehensive analyses using six different methods. This future verification research may indicate the method that best represents actual perpetual pavement design and performance.

Original languageEnglish (US)
Pages (from-to)1-12
Number of pages12
JournalInternational Journal of Pavement Engineering
DOIs
StateAccepted/In press - Jan 8 2016

Fingerprint

Asphalt concrete
Pavements
Durability
Fatigue of materials
Asphalt pavements
Concrete pavements
Structural design

Keywords

  • Asphalt concrete
  • damage
  • endurance limit
  • fatigue
  • healing

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials

Cite this

Impact of asphalt concrete fatigue endurance limit definition on pavement performance prediction. / Zeiada, W. A.; Underwood, B. S.; Kaloush, Kamil.

In: International Journal of Pavement Engineering, 08.01.2016, p. 1-12.

Research output: Contribution to journalArticle

@article{f75440505a49462db78f459352838fe9,
title = "Impact of asphalt concrete fatigue endurance limit definition on pavement performance prediction",
abstract = "Many well-constructed Hot Mix Asphalt pavements have been in service for 40 or more years without any evidence of fatigue cracking. This field experience suggests that there exists a strain level, known as the fatigue endurance limit (FEL), below which an asphalt concrete pavement will not exhibit fatigue cracks. Several studies have been conducted to define and verify this limit. Each of these methods is associated with certain assumptions regarding the nature of the FEL and heretofore a comprehensive comparison of each has not been made using a consistent set of mixtures. Likewise, the impact of any observed differences in FEL on the predicted pavement performance has not been made. This paper investigates and compares six different methods for identifying the FEL: NCHRP 9–44A approach, simplified viscoelastic continuum damage model, smeared-healing with continuum damage model, plateau value approach, pseudo-strain analysis method, and reduced cycles method. Each method is found to yield different values ranges from approximately 30–170 microstrains at 21.1 °C. The predicted FEL from each of the six methods are then used with the mechanistic empirical design algorithm to evaluate their effects on predicted pavement performance. Simulation outputs show different pavement performance and perpetual pavement structural design thicknesses from each of the methods. The study outcomes are expected to benefit future field verification research of FEL as it provides comprehensive analyses using six different methods. This future verification research may indicate the method that best represents actual perpetual pavement design and performance.",
keywords = "Asphalt concrete, damage, endurance limit, fatigue, healing",
author = "Zeiada, {W. A.} and Underwood, {B. S.} and Kamil Kaloush",
year = "2016",
month = "1",
day = "8",
doi = "10.1080/10298436.2015.1127372",
language = "English (US)",
pages = "1--12",
journal = "International Journal of Pavement Engineering",
issn = "1029-8436",
publisher = "Taylor and Francis Ltd.",

}

TY - JOUR

T1 - Impact of asphalt concrete fatigue endurance limit definition on pavement performance prediction

AU - Zeiada, W. A.

AU - Underwood, B. S.

AU - Kaloush, Kamil

PY - 2016/1/8

Y1 - 2016/1/8

N2 - Many well-constructed Hot Mix Asphalt pavements have been in service for 40 or more years without any evidence of fatigue cracking. This field experience suggests that there exists a strain level, known as the fatigue endurance limit (FEL), below which an asphalt concrete pavement will not exhibit fatigue cracks. Several studies have been conducted to define and verify this limit. Each of these methods is associated with certain assumptions regarding the nature of the FEL and heretofore a comprehensive comparison of each has not been made using a consistent set of mixtures. Likewise, the impact of any observed differences in FEL on the predicted pavement performance has not been made. This paper investigates and compares six different methods for identifying the FEL: NCHRP 9–44A approach, simplified viscoelastic continuum damage model, smeared-healing with continuum damage model, plateau value approach, pseudo-strain analysis method, and reduced cycles method. Each method is found to yield different values ranges from approximately 30–170 microstrains at 21.1 °C. The predicted FEL from each of the six methods are then used with the mechanistic empirical design algorithm to evaluate their effects on predicted pavement performance. Simulation outputs show different pavement performance and perpetual pavement structural design thicknesses from each of the methods. The study outcomes are expected to benefit future field verification research of FEL as it provides comprehensive analyses using six different methods. This future verification research may indicate the method that best represents actual perpetual pavement design and performance.

AB - Many well-constructed Hot Mix Asphalt pavements have been in service for 40 or more years without any evidence of fatigue cracking. This field experience suggests that there exists a strain level, known as the fatigue endurance limit (FEL), below which an asphalt concrete pavement will not exhibit fatigue cracks. Several studies have been conducted to define and verify this limit. Each of these methods is associated with certain assumptions regarding the nature of the FEL and heretofore a comprehensive comparison of each has not been made using a consistent set of mixtures. Likewise, the impact of any observed differences in FEL on the predicted pavement performance has not been made. This paper investigates and compares six different methods for identifying the FEL: NCHRP 9–44A approach, simplified viscoelastic continuum damage model, smeared-healing with continuum damage model, plateau value approach, pseudo-strain analysis method, and reduced cycles method. Each method is found to yield different values ranges from approximately 30–170 microstrains at 21.1 °C. The predicted FEL from each of the six methods are then used with the mechanistic empirical design algorithm to evaluate their effects on predicted pavement performance. Simulation outputs show different pavement performance and perpetual pavement structural design thicknesses from each of the methods. The study outcomes are expected to benefit future field verification research of FEL as it provides comprehensive analyses using six different methods. This future verification research may indicate the method that best represents actual perpetual pavement design and performance.

KW - Asphalt concrete

KW - damage

KW - endurance limit

KW - fatigue

KW - healing

UR - http://www.scopus.com/inward/record.url?scp=84953791185&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84953791185&partnerID=8YFLogxK

U2 - 10.1080/10298436.2015.1127372

DO - 10.1080/10298436.2015.1127372

M3 - Article

AN - SCOPUS:84953791185

SP - 1

EP - 12

JO - International Journal of Pavement Engineering

JF - International Journal of Pavement Engineering

SN - 1029-8436

ER -