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author:

Zou, Guilian (Zou, Guilian.) [1] | Chen, Qi (Chen, Qi.) [2] | Jiao, Youqing (Jiao, Youqing.) [3] | Yuan, Yan (Yuan, Yan.) [4] | Zhang, Yuan (Zhang, Yuan.) [5] | Yu, Jiangmiao (Yu, Jiangmiao.) [6]

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Abstract:

Snow and ice on the pavement surfaces in winter seriously threaten the traffic safety. This study prepared high-elastic/salt-storage (HESS) asphalt mixtures containing rubber particles (RP) and self-developed salt-storage fillers to improve deicing performance in various aspects. Specifically, the RP was incorporated into the asphalt mixture by replacing 1 %, 2 %, and 3 % of fine aggregate by mass and the self-developed salt-storage filler was incorporated into the asphalt mixture to replace 25 %, 50 %, and 75 % of the mineral filler by equal volume. Hydrated lime was used as a mineral filler to enhance the asphalt mixtures’ water damage resistance. The pavement performance of HESS asphalt mixtures was first studied. The pull-out and fall ball impact tests were designed to investigate the composite deicing effect of RP and salt-storage filler on the asphalt mixtures. A self-designed rainfall simulation test was used to assess the long-term deicing performance of HESS asphalt mixtures. Results showed that the incorporation of RP improves the high-temperature stability and low-temperature crack resistance of the mixtures, but negatively affects their water damage resistance. The RP content should not exceed 3 % to guarantee water damage resistance. Due to combining effects RP and salt-storage fillers, the deicing performance of HESS asphalt mixtures has been improved by 15.9 % and 10.6 % as compared to the addition of RP and salt-storage fillers separately. It is recommended to replace the fine aggregates with the RP at content of 1.5–3 % by mass and 60–75 % mineral filler with the salt-storage filler by volume. © 2024 Elsevier Ltd

Keyword:

Asphalt mixtures Asphalt pavements Bioremediation Fracture mechanics

Community:

  • [ 1 ] [Zou, Guilian]School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China
  • [ 2 ] [Chen, Qi]School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China
  • [ 3 ] [Jiao, Youqing]School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China
  • [ 4 ] [Yuan, Yan]College of Civil Engineering, Fuzhou University, Fuzhou, China
  • [ 5 ] [Zhang, Yuan]School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China
  • [ 6 ] [Zhang, Yuan]State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou, China
  • [ 7 ] [Yu, Jiangmiao]School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China
  • [ 8 ] [Yu, Jiangmiao]State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou, China
  • [ 9 ] [Yu, Jiangmiao]Central Fortune Creation Technology Group Co., Ltd, Foshan; 528200, China

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Source :

Construction and Building Materials

ISSN: 0950-0618

Year: 2024

Volume: 449

7 . 4 0 0

JCR@2023

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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