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Author:

Guo, Shaohua (Guo, Shaohua.) | Xiu, Hanbo (Xiu, Hanbo.) | Guo, Meng (Guo, Meng.) (Scholars:郭猛) | Guo, Yifan (Guo, Yifan.) | Zhang, Shuaixiang (Zhang, Shuaixiang.) | Chang, Li (Chang, Li.)

Indexed by:

EI Scopus SCIE

Abstract:

A composite anti-aging rejuvenator for road asphalt was studied and prepared. Asphalt samples with different aging degrees and modifier dosages were prepared by RTFOT(rolling thin film oven) and PAV(pressure aging vessle), and the viscoelastic, high temperature, low temperature and fatigue properties of the modified asphalt were comprehensively characterised based on their rheological properties. The test results showed that the composite anti-aging rejuvenator improved the fatigue performance and low temperature performance of aging asphalt. Among them, the creep rate m value at - 18 degrees C was recovered to 99.2 % of the unaged level, and the G-R (Glover-Rowe) parameter was reduced to more than 90 %. After long term aging of the composite anti-aging reclaimed mixtures were still able to maintain the water stability and low temperature performance higher than the level required by the specification. The paper found the better effect of adding same ratio of rejuvenator and anti-aging agent to aging asphalt. The reason was that the same ratio of rejuvenator and anti-aging agent could have synergistic effect and enhance each other. This paper verified the road value of the composite antiaging rejuvenator from asphalt and asphalt mixtures, which provides technical support and reference for the promotion of old pavement reclamation and long-life pavement.

Keyword:

Asphalt Anti-aging Rheology Rejuvenator

Author Community:

  • [ 1 ] [Guo, Shaohua]Liaoning Prov Traff Planning & Design Inst Co Ltd, Shenyang, Peoples R China
  • [ 2 ] [Chang, Li]Liaoning Prov Traff Planning & Design Inst Co Ltd, Shenyang, Peoples R China
  • [ 3 ] [Xiu, Hanbo]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 4 ] [Guo, Meng]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 5 ] [Guo, Yifan]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 6 ] [Zhang, Shuaixiang]Beijing Univ Technol, State Key Lab Bridge Engn Safety & Resilience, Beijing 100124, Peoples R China
  • [ 7 ] [Xiu, Hanbo]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 8 ] [Guo, Meng]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 9 ] [Guo, Yifan]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 10 ] [Zhang, Shuaixiang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Guo, Meng]Beijing Univ Technol, Beijing, Peoples R China;;

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Source :

CONSTRUCTION AND BUILDING MATERIALS

ISSN: 0950-0618

Year: 2024

Volume: 447

7 . 4 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

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