Performance of warm mix asphalt with recycled asphalt mixtures considering the effect of rejuvenating agent

Naisheng Guo; Zhanping You; Yinghua Zhao; Yiqiu Tan

doi:10.3969/j.issn.1007-9629.2015.04.024

Performance of warm mix asphalt with recycled asphalt mixtures considering the effect of rejuvenating agent

Naisheng Guo
, Zhanping You
, Yinghua Zhao
, Yiqiu Tan

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

7 Scopus citations

Abstract

To expose the effect of rejuvenating agent on performance of warm mix asphalt with recycled asphalt mixtures(WRAM), a laboratory study was conducted to evaluate the performance of WRAM containing three reclaimed asphalt pavement(RAP) (mass fraction are 20%, 30%, and 40%, respectively) and three warm mix asphalt (WMA) additives(S-I, DAT, and ET) consisting of surfactant with similar technical properties. Comparative investigation was performed to analyze the performance of WRAM and hot recycled asphalt mixtures (HRAM). The results show that dynamic stability (DS) of WRAM meets the specification requirement no matter whether the rejuvenating agent is used or not. The tensile strength ratio (TSR) and maximum bending tensile strain (ε_m) of WRAM, except that produced using ET and 30%, 40% RAP, meet the specification requirements when rejuvenating agent is used. However, TSR of WRAM without rejuvenating agent fails to pass the specification requirements. DS of WRAM with rejuvenating agent exhibits a slight decrease, and it has higher TSR and ε_m values in comparison with that of WRAM without rejuvenating agent when the same WMA additive is used. Among the investigated performance indices of WRAM with the same RAP content, DS, TSR, and ε_m of DAT/WRAM perform best, whereas that of ET/WRAM performs minimum no matter whether rejuvenating agent is used or not. DAT/WRAM exhibits a slight increase, and ET/WRAM displays a distinct decrease as compared to HRAM in terms of the performance indices when rejuvenating agent is used. Moreover, high temperature stability of S-I/WRAM performs slightly lower than that of HRAM, and S-I/WRAM shows similar low temperature cracking resistance and moisture susceptibility to those of HRAM. It has also been shown that rejuvenating agent performs a significant influence on low temperature cracking resistance and moisture susceptibility of WRAM, and there is a considerable difference in performance of WRAM with similar technical properties of WMA additive.

Original language	English
Pages (from-to)	674-681
Number of pages	8
Journal	Jianzhu Cailiao Xuebao/Journal of Building Materials
Volume	18
Issue number	4
DOIs	https://doi.org/10.3969/j.issn.1007-9629.2015.04.024
State	Published - 1 Aug 2015
Externally published	Yes

Keywords

Dynamic stability
Maximum bending tensile strain
Pavement engineering
Reclaimed asphalt pavement(RAP)
Rejuvenating agent
Tensile strength ratio(TSR)
Warm mix asphalt

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10.3969/j.issn.1007-9629.2015.04.024

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@article{abd5029996d345ef88ae9d8335fc3cfa,

title = "Performance of warm mix asphalt with recycled asphalt mixtures considering the effect of rejuvenating agent",

abstract = "To expose the effect of rejuvenating agent on performance of warm mix asphalt with recycled asphalt mixtures(WRAM), a laboratory study was conducted to evaluate the performance of WRAM containing three reclaimed asphalt pavement(RAP) (mass fraction are 20\%, 30\%, and 40\%, respectively) and three warm mix asphalt (WMA) additives(S-I, DAT, and ET) consisting of surfactant with similar technical properties. Comparative investigation was performed to analyze the performance of WRAM and hot recycled asphalt mixtures (HRAM). The results show that dynamic stability (DS) of WRAM meets the specification requirement no matter whether the rejuvenating agent is used or not. The tensile strength ratio (TSR) and maximum bending tensile strain (εm) of WRAM, except that produced using ET and 30\%, 40\% RAP, meet the specification requirements when rejuvenating agent is used. However, TSR of WRAM without rejuvenating agent fails to pass the specification requirements. DS of WRAM with rejuvenating agent exhibits a slight decrease, and it has higher TSR and εm values in comparison with that of WRAM without rejuvenating agent when the same WMA additive is used. Among the investigated performance indices of WRAM with the same RAP content, DS, TSR, and εm of DAT/WRAM perform best, whereas that of ET/WRAM performs minimum no matter whether rejuvenating agent is used or not. DAT/WRAM exhibits a slight increase, and ET/WRAM displays a distinct decrease as compared to HRAM in terms of the performance indices when rejuvenating agent is used. Moreover, high temperature stability of S-I/WRAM performs slightly lower than that of HRAM, and S-I/WRAM shows similar low temperature cracking resistance and moisture susceptibility to those of HRAM. It has also been shown that rejuvenating agent performs a significant influence on low temperature cracking resistance and moisture susceptibility of WRAM, and there is a considerable difference in performance of WRAM with similar technical properties of WMA additive.",

keywords = "Dynamic stability, Maximum bending tensile strain, Pavement engineering, Reclaimed asphalt pavement(RAP), Rejuvenating agent, Tensile strength ratio(TSR), Warm mix asphalt",

author = "Naisheng Guo and Zhanping You and Yinghua Zhao and Yiqiu Tan",

year = "2015",

month = aug,

day = "1",

doi = "10.3969/j.issn.1007-9629.2015.04.024",

language = "英语",

volume = "18",

pages = "674--681",

journal = "Jianzhu Cailiao Xuebao/Journal of Building Materials",

issn = "1007-9629",

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T1 - Performance of warm mix asphalt with recycled asphalt mixtures considering the effect of rejuvenating agent

AU - Guo, Naisheng

AU - You, Zhanping

AU - Zhao, Yinghua

AU - Tan, Yiqiu

PY - 2015/8/1

Y1 - 2015/8/1

N2 - To expose the effect of rejuvenating agent on performance of warm mix asphalt with recycled asphalt mixtures(WRAM), a laboratory study was conducted to evaluate the performance of WRAM containing three reclaimed asphalt pavement(RAP) (mass fraction are 20%, 30%, and 40%, respectively) and three warm mix asphalt (WMA) additives(S-I, DAT, and ET) consisting of surfactant with similar technical properties. Comparative investigation was performed to analyze the performance of WRAM and hot recycled asphalt mixtures (HRAM). The results show that dynamic stability (DS) of WRAM meets the specification requirement no matter whether the rejuvenating agent is used or not. The tensile strength ratio (TSR) and maximum bending tensile strain (εm) of WRAM, except that produced using ET and 30%, 40% RAP, meet the specification requirements when rejuvenating agent is used. However, TSR of WRAM without rejuvenating agent fails to pass the specification requirements. DS of WRAM with rejuvenating agent exhibits a slight decrease, and it has higher TSR and εm values in comparison with that of WRAM without rejuvenating agent when the same WMA additive is used. Among the investigated performance indices of WRAM with the same RAP content, DS, TSR, and εm of DAT/WRAM perform best, whereas that of ET/WRAM performs minimum no matter whether rejuvenating agent is used or not. DAT/WRAM exhibits a slight increase, and ET/WRAM displays a distinct decrease as compared to HRAM in terms of the performance indices when rejuvenating agent is used. Moreover, high temperature stability of S-I/WRAM performs slightly lower than that of HRAM, and S-I/WRAM shows similar low temperature cracking resistance and moisture susceptibility to those of HRAM. It has also been shown that rejuvenating agent performs a significant influence on low temperature cracking resistance and moisture susceptibility of WRAM, and there is a considerable difference in performance of WRAM with similar technical properties of WMA additive.

AB - To expose the effect of rejuvenating agent on performance of warm mix asphalt with recycled asphalt mixtures(WRAM), a laboratory study was conducted to evaluate the performance of WRAM containing three reclaimed asphalt pavement(RAP) (mass fraction are 20%, 30%, and 40%, respectively) and three warm mix asphalt (WMA) additives(S-I, DAT, and ET) consisting of surfactant with similar technical properties. Comparative investigation was performed to analyze the performance of WRAM and hot recycled asphalt mixtures (HRAM). The results show that dynamic stability (DS) of WRAM meets the specification requirement no matter whether the rejuvenating agent is used or not. The tensile strength ratio (TSR) and maximum bending tensile strain (εm) of WRAM, except that produced using ET and 30%, 40% RAP, meet the specification requirements when rejuvenating agent is used. However, TSR of WRAM without rejuvenating agent fails to pass the specification requirements. DS of WRAM with rejuvenating agent exhibits a slight decrease, and it has higher TSR and εm values in comparison with that of WRAM without rejuvenating agent when the same WMA additive is used. Among the investigated performance indices of WRAM with the same RAP content, DS, TSR, and εm of DAT/WRAM perform best, whereas that of ET/WRAM performs minimum no matter whether rejuvenating agent is used or not. DAT/WRAM exhibits a slight increase, and ET/WRAM displays a distinct decrease as compared to HRAM in terms of the performance indices when rejuvenating agent is used. Moreover, high temperature stability of S-I/WRAM performs slightly lower than that of HRAM, and S-I/WRAM shows similar low temperature cracking resistance and moisture susceptibility to those of HRAM. It has also been shown that rejuvenating agent performs a significant influence on low temperature cracking resistance and moisture susceptibility of WRAM, and there is a considerable difference in performance of WRAM with similar technical properties of WMA additive.

KW - Dynamic stability

KW - Maximum bending tensile strain

KW - Pavement engineering

KW - Reclaimed asphalt pavement(RAP)

KW - Rejuvenating agent

KW - Tensile strength ratio(TSR)

KW - Warm mix asphalt

UR - https://www.scopus.com/pages/publications/84942241312

U2 - 10.3969/j.issn.1007-9629.2015.04.024

DO - 10.3969/j.issn.1007-9629.2015.04.024

M3 - 文章

AN - SCOPUS:84942241312

SN - 1007-9629

VL - 18

SP - 674

EP - 681

JO - Jianzhu Cailiao Xuebao/Journal of Building Materials

JF - Jianzhu Cailiao Xuebao/Journal of Building Materials

IS - 4

ER -

Performance of warm mix asphalt with recycled asphalt mixtures considering the effect of rejuvenating agent

Abstract

Keywords

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