Development of dynamic modulus-based mixture blending chart for asphalt mixtures with reclaimed asphalt pavement

Kun Zhang, Shihui Shen, Justin Lim, Balasingam Muhunthan

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The current practice of using the binder blending chart to select a performance grade of the virgin binder may not be applicable for mixtures containing more than 25% reclaimed asphalt pavement (RAP), since the binder blending chart assumes full blending between virgin and RAP binders. For such high RAP percentage cases, a blending chart based directly on the performance of mixtures would be a better choice. This study develops a mixture blending chart based on the dynamic modulus values of RAP mixtures to better control their performance. Three rules of mixtures were considered to develop the mixture blending chart, including Voigt rule, Reuss rule, and a joint Voigt and Reuss (V & R) rule. The dynamic modulus values of three sets of RAP mixtures were measured in this study. The results indicated that the dynamic modulus values calculated by the joint V & R rule matched the measured values of the corresponding RAP mixtures better than those calculated by the Reuss rule and Voigt rule. Digital images of two-dimensional slices of the laboratory specimens were taken and used to construct the ideal binary-blended RAP mixtures, and the finite-element analyses were conducted to determine the modulus values of these digital RAP mixtures to verify the developed mixture blending chart. The modulus results of digital RAP mixtures matched the modulus values determined based on the joint V & R rule. We conclude that the joint V & R rule could be used as the mixture blending chart to select an appropriate virgin binder when designing high RAP content mixtures.

Original languageEnglish (US)
Article number04018382
JournalJournal of Materials in Civil Engineering
Volume31
Issue number2
DOIs
StatePublished - Feb 1 2019

Fingerprint

Asphalt mixtures
Asphalt pavements
Binders

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials

Cite this

@article{c6f8333ceab749408e97806c621f07ca,
title = "Development of dynamic modulus-based mixture blending chart for asphalt mixtures with reclaimed asphalt pavement",
abstract = "The current practice of using the binder blending chart to select a performance grade of the virgin binder may not be applicable for mixtures containing more than 25{\%} reclaimed asphalt pavement (RAP), since the binder blending chart assumes full blending between virgin and RAP binders. For such high RAP percentage cases, a blending chart based directly on the performance of mixtures would be a better choice. This study develops a mixture blending chart based on the dynamic modulus values of RAP mixtures to better control their performance. Three rules of mixtures were considered to develop the mixture blending chart, including Voigt rule, Reuss rule, and a joint Voigt and Reuss (V & R) rule. The dynamic modulus values of three sets of RAP mixtures were measured in this study. The results indicated that the dynamic modulus values calculated by the joint V & R rule matched the measured values of the corresponding RAP mixtures better than those calculated by the Reuss rule and Voigt rule. Digital images of two-dimensional slices of the laboratory specimens were taken and used to construct the ideal binary-blended RAP mixtures, and the finite-element analyses were conducted to determine the modulus values of these digital RAP mixtures to verify the developed mixture blending chart. The modulus results of digital RAP mixtures matched the modulus values determined based on the joint V & R rule. We conclude that the joint V & R rule could be used as the mixture blending chart to select an appropriate virgin binder when designing high RAP content mixtures.",
author = "Kun Zhang and Shihui Shen and Justin Lim and Balasingam Muhunthan",
year = "2019",
month = "2",
day = "1",
doi = "10.1061/(ASCE)MT.1943-5533.0002606",
language = "English (US)",
volume = "31",
journal = "Journal of Materials in Civil Engineering",
issn = "0899-1561",
publisher = "American Society of Civil Engineers (ASCE)",
number = "2",

}

Development of dynamic modulus-based mixture blending chart for asphalt mixtures with reclaimed asphalt pavement. / Zhang, Kun; Shen, Shihui; Lim, Justin; Muhunthan, Balasingam.

In: Journal of Materials in Civil Engineering, Vol. 31, No. 2, 04018382, 01.02.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Development of dynamic modulus-based mixture blending chart for asphalt mixtures with reclaimed asphalt pavement

AU - Zhang, Kun

AU - Shen, Shihui

AU - Lim, Justin

AU - Muhunthan, Balasingam

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The current practice of using the binder blending chart to select a performance grade of the virgin binder may not be applicable for mixtures containing more than 25% reclaimed asphalt pavement (RAP), since the binder blending chart assumes full blending between virgin and RAP binders. For such high RAP percentage cases, a blending chart based directly on the performance of mixtures would be a better choice. This study develops a mixture blending chart based on the dynamic modulus values of RAP mixtures to better control their performance. Three rules of mixtures were considered to develop the mixture blending chart, including Voigt rule, Reuss rule, and a joint Voigt and Reuss (V & R) rule. The dynamic modulus values of three sets of RAP mixtures were measured in this study. The results indicated that the dynamic modulus values calculated by the joint V & R rule matched the measured values of the corresponding RAP mixtures better than those calculated by the Reuss rule and Voigt rule. Digital images of two-dimensional slices of the laboratory specimens were taken and used to construct the ideal binary-blended RAP mixtures, and the finite-element analyses were conducted to determine the modulus values of these digital RAP mixtures to verify the developed mixture blending chart. The modulus results of digital RAP mixtures matched the modulus values determined based on the joint V & R rule. We conclude that the joint V & R rule could be used as the mixture blending chart to select an appropriate virgin binder when designing high RAP content mixtures.

AB - The current practice of using the binder blending chart to select a performance grade of the virgin binder may not be applicable for mixtures containing more than 25% reclaimed asphalt pavement (RAP), since the binder blending chart assumes full blending between virgin and RAP binders. For such high RAP percentage cases, a blending chart based directly on the performance of mixtures would be a better choice. This study develops a mixture blending chart based on the dynamic modulus values of RAP mixtures to better control their performance. Three rules of mixtures were considered to develop the mixture blending chart, including Voigt rule, Reuss rule, and a joint Voigt and Reuss (V & R) rule. The dynamic modulus values of three sets of RAP mixtures were measured in this study. The results indicated that the dynamic modulus values calculated by the joint V & R rule matched the measured values of the corresponding RAP mixtures better than those calculated by the Reuss rule and Voigt rule. Digital images of two-dimensional slices of the laboratory specimens were taken and used to construct the ideal binary-blended RAP mixtures, and the finite-element analyses were conducted to determine the modulus values of these digital RAP mixtures to verify the developed mixture blending chart. The modulus results of digital RAP mixtures matched the modulus values determined based on the joint V & R rule. We conclude that the joint V & R rule could be used as the mixture blending chart to select an appropriate virgin binder when designing high RAP content mixtures.

UR - http://www.scopus.com/inward/record.url?scp=85057894765&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85057894765&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)MT.1943-5533.0002606

DO - 10.1061/(ASCE)MT.1943-5533.0002606

M3 - Article

AN - SCOPUS:85057894765

VL - 31

JO - Journal of Materials in Civil Engineering

JF - Journal of Materials in Civil Engineering

SN - 0899-1561

IS - 2

M1 - 04018382

ER -