An alternative analysis of indirect tensile test results for evaluating fatigue characteristics of asphalt mixes

Manik Barman; Rouzbeh Ghabchi; Dharamveer Singh; Musharraf Zaman; Sesh Commuri

doi:10.1016/j.conbuildmat.2018.01.049

An alternative analysis of indirect tensile test results for evaluating fatigue characteristics of asphalt mixes

Manik Barman, Rouzbeh Ghabchi, Dharamveer Singh, Musharraf Zaman, Sesh Commuri

Civil Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Fatigue cracking is one of the major distresses responsible for the failure of asphalt pavements. The widely-accepted Superpave® volumetric mix design method does not consider screening the asphalt mixes based on their fatigue resistance. Based on a survey conducted in this study, it was found that many state Departments of Transportations (DOTs) do not perform a fatigue test during mix design, mainly due to lack of specialized equipment, trained personnel and consensus about the most appropriate test method. This present study was undertaken to suggest a simple, quick and effective fatigue test method and the corresponding data analysis procedure. It was found that the indirect tension test, which is usually conducted in the DOTs on a regular basis, can be used to characterize the fatigue resistance of asphalt mixes as well. A simplified data analysis approach has been proposed. The fatigue resistance of asphalt mixes can be determined by using a newly derived parameter called Fatigue Index (f_i). Fatigue resistance of five different asphalt mixes were evaluated using this new parameter, f_i. It was found that the f_i parameter were able to statistically discriminate five selected asphalt mixes with respect to their fatigue resistance. The effectiveness of the f_i parameter was verified by investigating its correlations with the results of the semi-circular bend and four-point beam fatigue test results.

Original language	English (US)
Pages (from-to)	204-213
Number of pages	10
Journal	Construction and Building Materials
Volume	166
DOIs	https://doi.org/10.1016/j.conbuildmat.2018.01.049
State	Published - Mar 30 2018

Bibliographical note

Funding Information:
The financial support provided by the Oklahoma DOT (ODOT) is highly acknowledged. The authors of this report would like to give special thanks to Mr. Kenneth Hobson of ODOT for his continuous support in pursuing different activities of this project. The contributions of Silver Star Company, Moore, OK; Valero Refinery, Ardmore, OK; Kraton Polymer, Houston, TX in providing materials are highly appreciated. Also, the contributions of the Broce Laboratory staff at the University of Oklahoma: Mr. Michael F. Schmitz, Mr. Dheepak Rajendran, Mr. Michael D. Hendrick, and Mr. Adwaita Raghavan are highly appreciated.

Publisher Copyright:
© 2018

Keywords

Asphalt mix
Fatigue
Four-point beam fatigue (BF)
Indirect tensile strength (ITS)
Indirect tension (IDT)
Semi-circular bend (SCB)
Toughness index (TI)

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10.1016/j.conbuildmat.2018.01.049

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title = "An alternative analysis of indirect tensile test results for evaluating fatigue characteristics of asphalt mixes",

abstract = "Fatigue cracking is one of the major distresses responsible for the failure of asphalt pavements. The widely-accepted Superpave{\textregistered} volumetric mix design method does not consider screening the asphalt mixes based on their fatigue resistance. Based on a survey conducted in this study, it was found that many state Departments of Transportations (DOTs) do not perform a fatigue test during mix design, mainly due to lack of specialized equipment, trained personnel and consensus about the most appropriate test method. This present study was undertaken to suggest a simple, quick and effective fatigue test method and the corresponding data analysis procedure. It was found that the indirect tension test, which is usually conducted in the DOTs on a regular basis, can be used to characterize the fatigue resistance of asphalt mixes as well. A simplified data analysis approach has been proposed. The fatigue resistance of asphalt mixes can be determined by using a newly derived parameter called Fatigue Index (fi). Fatigue resistance of five different asphalt mixes were evaluated using this new parameter, fi. It was found that the fi parameter were able to statistically discriminate five selected asphalt mixes with respect to their fatigue resistance. The effectiveness of the fi parameter was verified by investigating its correlations with the results of the semi-circular bend and four-point beam fatigue test results.",

keywords = "Asphalt mix, Fatigue, Four-point beam fatigue (BF), Indirect tensile strength (ITS), Indirect tension (IDT), Semi-circular bend (SCB), Toughness index (TI)",

author = "Manik Barman and Rouzbeh Ghabchi and Dharamveer Singh and Musharraf Zaman and Sesh Commuri",

note = "Funding Information: The financial support provided by the Oklahoma DOT (ODOT) is highly acknowledged. The authors of this report would like to give special thanks to Mr. Kenneth Hobson of ODOT for his continuous support in pursuing different activities of this project. The contributions of Silver Star Company, Moore, OK; Valero Refinery, Ardmore, OK; Kraton Polymer, Houston, TX in providing materials are highly appreciated. Also, the contributions of the Broce Laboratory staff at the University of Oklahoma: Mr. Michael F. Schmitz, Mr. Dheepak Rajendran, Mr. Michael D. Hendrick, and Mr. Adwaita Raghavan are highly appreciated. Publisher Copyright: {\textcopyright} 2018",

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doi = "10.1016/j.conbuildmat.2018.01.049",

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AU - Ghabchi, Rouzbeh

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AU - Zaman, Musharraf

AU - Commuri, Sesh

N1 - Funding Information: The financial support provided by the Oklahoma DOT (ODOT) is highly acknowledged. The authors of this report would like to give special thanks to Mr. Kenneth Hobson of ODOT for his continuous support in pursuing different activities of this project. The contributions of Silver Star Company, Moore, OK; Valero Refinery, Ardmore, OK; Kraton Polymer, Houston, TX in providing materials are highly appreciated. Also, the contributions of the Broce Laboratory staff at the University of Oklahoma: Mr. Michael F. Schmitz, Mr. Dheepak Rajendran, Mr. Michael D. Hendrick, and Mr. Adwaita Raghavan are highly appreciated. Publisher Copyright: © 2018

PY - 2018/3/30

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N2 - Fatigue cracking is one of the major distresses responsible for the failure of asphalt pavements. The widely-accepted Superpave® volumetric mix design method does not consider screening the asphalt mixes based on their fatigue resistance. Based on a survey conducted in this study, it was found that many state Departments of Transportations (DOTs) do not perform a fatigue test during mix design, mainly due to lack of specialized equipment, trained personnel and consensus about the most appropriate test method. This present study was undertaken to suggest a simple, quick and effective fatigue test method and the corresponding data analysis procedure. It was found that the indirect tension test, which is usually conducted in the DOTs on a regular basis, can be used to characterize the fatigue resistance of asphalt mixes as well. A simplified data analysis approach has been proposed. The fatigue resistance of asphalt mixes can be determined by using a newly derived parameter called Fatigue Index (fi). Fatigue resistance of five different asphalt mixes were evaluated using this new parameter, fi. It was found that the fi parameter were able to statistically discriminate five selected asphalt mixes with respect to their fatigue resistance. The effectiveness of the fi parameter was verified by investigating its correlations with the results of the semi-circular bend and four-point beam fatigue test results.

AB - Fatigue cracking is one of the major distresses responsible for the failure of asphalt pavements. The widely-accepted Superpave® volumetric mix design method does not consider screening the asphalt mixes based on their fatigue resistance. Based on a survey conducted in this study, it was found that many state Departments of Transportations (DOTs) do not perform a fatigue test during mix design, mainly due to lack of specialized equipment, trained personnel and consensus about the most appropriate test method. This present study was undertaken to suggest a simple, quick and effective fatigue test method and the corresponding data analysis procedure. It was found that the indirect tension test, which is usually conducted in the DOTs on a regular basis, can be used to characterize the fatigue resistance of asphalt mixes as well. A simplified data analysis approach has been proposed. The fatigue resistance of asphalt mixes can be determined by using a newly derived parameter called Fatigue Index (fi). Fatigue resistance of five different asphalt mixes were evaluated using this new parameter, fi. It was found that the fi parameter were able to statistically discriminate five selected asphalt mixes with respect to their fatigue resistance. The effectiveness of the fi parameter was verified by investigating its correlations with the results of the semi-circular bend and four-point beam fatigue test results.

KW - Asphalt mix

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KW - Four-point beam fatigue (BF)

KW - Indirect tensile strength (ITS)

KW - Indirect tension (IDT)

KW - Semi-circular bend (SCB)

KW - Toughness index (TI)

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EP - 213

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

ER -

An alternative analysis of indirect tensile test results for evaluating fatigue characteristics of asphalt mixes

Abstract

Bibliographical note

Keywords

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