Verification and improvement of the rate of asphalt aging simulated by AASHTO PP1-98 protocol

Suresh Raghavendra, Claudia Zapata, M. Waseem Mirza, William N. Houston, Matthew W. Witczak

Research output: Contribution to journalArticle

Abstract

It is well documented that environmental effects play a significant role in characterizing material properties, which in turn affect pavement performance. Studies under the Strategic Highway Research Program (SHRP) were carried out on the age-hardening characteristics of asphalt binders and mixes. As a result, laboratory procedures to simulate the field hardening of asphalt binders and mixes, AASHTO Provisional Protocols PP1-98 and PP2-99, were developed. The approaches followed in these procedures are of great value for the ongoing research on pavement aging; however, due to limited resources and time constraints under the SHRP program, these provisional procedures have certain limitations. A research study, NCHRP Project 9-23, was initiated to overcome these limitations and enhance the predictive capabilities of these protocols. The current research paper is a part of NCHRP 9-23, which deals with the PP1-98 protocol. Binders and field cores were obtained from long-term pavement performance and other sites across the United States. Original, laboratory-aged, and field-aged binders were characterized through dynamic shear rheometer testing. The existing protocol was verified; on the basis of the findings, the protocol was improved to include the effect of field aging conditions and mix properties. The developed model was calibrated and validated with field data. Parametric analysis was performed on the final model to ascertain the practicality of the output On the basis of those findings, a recommended provisional protocol was developed. The recommendations apply only for conventional, nonmodified binders.

Original languageEnglish (US)
Pages (from-to)24-32
Number of pages9
JournalTransportation Research Record
Issue number1901
StatePublished - 2005

Fingerprint

Asphalt
Binders
Aging of materials
Network protocols
Pavements
Age hardening
Rheometers
Environmental impact
Hardening
Materials properties
Testing

ASJC Scopus subject areas

  • Civil and Structural Engineering

Cite this

Raghavendra, S., Zapata, C., Mirza, M. W., Houston, W. N., & Witczak, M. W. (2005). Verification and improvement of the rate of asphalt aging simulated by AASHTO PP1-98 protocol. Transportation Research Record, (1901), 24-32.

Verification and improvement of the rate of asphalt aging simulated by AASHTO PP1-98 protocol. / Raghavendra, Suresh; Zapata, Claudia; Mirza, M. Waseem; Houston, William N.; Witczak, Matthew W.

In: Transportation Research Record, No. 1901, 2005, p. 24-32.

Research output: Contribution to journalArticle

Raghavendra, Suresh ; Zapata, Claudia ; Mirza, M. Waseem ; Houston, William N. ; Witczak, Matthew W. / Verification and improvement of the rate of asphalt aging simulated by AASHTO PP1-98 protocol. In: Transportation Research Record. 2005 ; No. 1901. pp. 24-32.
@article{ae83e7fbb0014b29820cbe85850134ef,
title = "Verification and improvement of the rate of asphalt aging simulated by AASHTO PP1-98 protocol",
abstract = "It is well documented that environmental effects play a significant role in characterizing material properties, which in turn affect pavement performance. Studies under the Strategic Highway Research Program (SHRP) were carried out on the age-hardening characteristics of asphalt binders and mixes. As a result, laboratory procedures to simulate the field hardening of asphalt binders and mixes, AASHTO Provisional Protocols PP1-98 and PP2-99, were developed. The approaches followed in these procedures are of great value for the ongoing research on pavement aging; however, due to limited resources and time constraints under the SHRP program, these provisional procedures have certain limitations. A research study, NCHRP Project 9-23, was initiated to overcome these limitations and enhance the predictive capabilities of these protocols. The current research paper is a part of NCHRP 9-23, which deals with the PP1-98 protocol. Binders and field cores were obtained from long-term pavement performance and other sites across the United States. Original, laboratory-aged, and field-aged binders were characterized through dynamic shear rheometer testing. The existing protocol was verified; on the basis of the findings, the protocol was improved to include the effect of field aging conditions and mix properties. The developed model was calibrated and validated with field data. Parametric analysis was performed on the final model to ascertain the practicality of the output On the basis of those findings, a recommended provisional protocol was developed. The recommendations apply only for conventional, nonmodified binders.",
author = "Suresh Raghavendra and Claudia Zapata and Mirza, {M. Waseem} and Houston, {William N.} and Witczak, {Matthew W.}",
year = "2005",
language = "English (US)",
pages = "24--32",
journal = "Transportation Research Record",
issn = "0361-1981",
publisher = "US National Research Council",
number = "1901",

}

TY - JOUR

T1 - Verification and improvement of the rate of asphalt aging simulated by AASHTO PP1-98 protocol

AU - Raghavendra, Suresh

AU - Zapata, Claudia

AU - Mirza, M. Waseem

AU - Houston, William N.

AU - Witczak, Matthew W.

PY - 2005

Y1 - 2005

N2 - It is well documented that environmental effects play a significant role in characterizing material properties, which in turn affect pavement performance. Studies under the Strategic Highway Research Program (SHRP) were carried out on the age-hardening characteristics of asphalt binders and mixes. As a result, laboratory procedures to simulate the field hardening of asphalt binders and mixes, AASHTO Provisional Protocols PP1-98 and PP2-99, were developed. The approaches followed in these procedures are of great value for the ongoing research on pavement aging; however, due to limited resources and time constraints under the SHRP program, these provisional procedures have certain limitations. A research study, NCHRP Project 9-23, was initiated to overcome these limitations and enhance the predictive capabilities of these protocols. The current research paper is a part of NCHRP 9-23, which deals with the PP1-98 protocol. Binders and field cores were obtained from long-term pavement performance and other sites across the United States. Original, laboratory-aged, and field-aged binders were characterized through dynamic shear rheometer testing. The existing protocol was verified; on the basis of the findings, the protocol was improved to include the effect of field aging conditions and mix properties. The developed model was calibrated and validated with field data. Parametric analysis was performed on the final model to ascertain the practicality of the output On the basis of those findings, a recommended provisional protocol was developed. The recommendations apply only for conventional, nonmodified binders.

AB - It is well documented that environmental effects play a significant role in characterizing material properties, which in turn affect pavement performance. Studies under the Strategic Highway Research Program (SHRP) were carried out on the age-hardening characteristics of asphalt binders and mixes. As a result, laboratory procedures to simulate the field hardening of asphalt binders and mixes, AASHTO Provisional Protocols PP1-98 and PP2-99, were developed. The approaches followed in these procedures are of great value for the ongoing research on pavement aging; however, due to limited resources and time constraints under the SHRP program, these provisional procedures have certain limitations. A research study, NCHRP Project 9-23, was initiated to overcome these limitations and enhance the predictive capabilities of these protocols. The current research paper is a part of NCHRP 9-23, which deals with the PP1-98 protocol. Binders and field cores were obtained from long-term pavement performance and other sites across the United States. Original, laboratory-aged, and field-aged binders were characterized through dynamic shear rheometer testing. The existing protocol was verified; on the basis of the findings, the protocol was improved to include the effect of field aging conditions and mix properties. The developed model was calibrated and validated with field data. Parametric analysis was performed on the final model to ascertain the practicality of the output On the basis of those findings, a recommended provisional protocol was developed. The recommendations apply only for conventional, nonmodified binders.

UR - http://www.scopus.com/inward/record.url?scp=25144457472&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=25144457472&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:25144457472

SP - 24

EP - 32

JO - Transportation Research Record

JF - Transportation Research Record

SN - 0361-1981

IS - 1901

ER -