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作者:

Zhi, Suo (Zhi, Suo.) | Jie, Ji (Jie, Ji.) | Ran, Zhang (Ran, Zhang.) | Zhe, Wang (Zhe, Wang.) | Hui, Yao (Hui, Yao.) | Dongzhao, Jin (Dongzhao, Jin.)

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摘要:

The main objective of this research is to investigate the permanent deformation of asphalt mixtures containing direct coal liquefaction residue (DCLR) under various tire pressures and temperatures. Three types of asphalt mixtures, including control/DCLR/composite-DCLR modified asphalt mixture, were prepared by the Marshall design method. The rutting test was conducted under a tire pressure range of 0.7-1.0 MPa with a 0.1-MPa interval and at a temperature range of 55-70 degrees C with a 5 degrees C interval. Moreover, the dynamic stability and rutting depth of three asphalt mixtures were obtained to evaluate their resistance of permanent deformation. It was found that the rutting resistance of three asphalt mixtures declines with the increased tire pressures and temperatures. The asphalt mixture containing DCLR has a higher dynamic stability and lower rutting depth compared to the control asphalt mixture under the same conditions. Furthermore, the rutting resistance of composite-DCLR modified asphalt mixture is better than that of DCLR modified asphalt mixture. It indicates that the composite-DCLR is favorable for the improvement of rutting resistance of asphalt mixture. Moreover, the analysis of variance was applied, which analysis results showed that the rutting resistance of asphalt mixture is more sensitive to temperature than tire pressure. Based on the least-squares procedure, the relationship between dynamic stability and rutting depth was obtained, and the accuracy of the prediction is acceptable.

关键词:

permanent deformation regression model direct coal liquefaction residue tire pressure and temperature analysis of variance

作者机构:

  • [ 1 ] [Zhi, Suo]Beijing Univ Civil Engn & Architecture, Sch Civil Engn & Transportat, Beijing, Peoples R China
  • [ 2 ] [Jie, Ji]Beijing Univ Civil Engn & Architecture, Sch Civil Engn & Transportat, Beijing, Peoples R China
  • [ 3 ] [Ran, Zhang]Beijing Univ Civil Engn & Architecture, Sch Civil Engn & Transportat, Beijing, Peoples R China
  • [ 4 ] [Zhe, Wang]Beijing Univ Civil Engn & Architecture, Sch Civil Engn & Transportat, Beijing, Peoples R China
  • [ 5 ] [Zhi, Suo]Beijing Univ Civil Engn & Architecture, Beijing Adv Innovat Ctr Future Urban Design, Beijing, Peoples R China
  • [ 6 ] [Jie, Ji]Beijing Univ Civil Engn & Architecture, Beijing Adv Innovat Ctr Future Urban Design, Beijing, Peoples R China
  • [ 7 ] [Ran, Zhang]Beijing Univ Civil Engn & Architecture, Beijing Adv Innovat Ctr Future Urban Design, Beijing, Peoples R China
  • [ 8 ] [Hui, Yao]Beijing Univ Technol, Coll Metropolitan Transportat, Beijing Key Lab Traff Engn, Beijing, Peoples R China
  • [ 9 ] [Dongzhao, Jin]Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA

通讯作者信息:

  • [Jie, Ji]Beijing Univ Civil Engn & Architecture, Sch Civil Engn & Transportat, Beijing, Peoples R China;;[Jie, Ji]Beijing Univ Civil Engn & Architecture, Beijing Adv Innovat Ctr Future Urban Design, Beijing, Peoples R China

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来源 :

FRONTIERS IN MATERIALS

ISSN: 2296-8016

年份: 2020

卷: 7

3 . 2 0 0

JCR@2022

被引次数:

WoS核心集被引频次: 4

SCOPUS被引频次: 4

ESI高被引论文在榜: 0 展开所有

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