Estimation of Comprehensive Impact of External Factors on Interlayer Fatigue Life of Asphalt Pavement Based on ISS & SSDR

被引：0
|
作者：
Ai C. [1 ]
Huang Y. [1 ]
Luo L. [1 ]
Ren D. [1 ]
Qiu Y. [1 ]
机构：
[1] Key Laboratory of Highway Engineering of Sichuan Province, School of Civil Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan
来源：
Ren, Dongya (dongyaren@swjtu.edu.cn) | 1600年 / South China University of Technology卷 / 48期
基金：
中国国家自然科学基金;
关键词：
Asphalt pavement; Initial shear stiffness; Interlayer fatigue model; Multiple regression; Road engineering; Shear stiffness decay rate;
D O I：
10.12141/j.issn.1000-565X.190501
中图分类号：
学科分类号：
摘要：
The evaluation of interlayer fatigue performance of asphalt pavement is highly dependent on fatigue life.But the factors considered in the existing interlayer fatigue life prediction model are not comprehensive enough, and there is no correlation between the interlayer fatigue life prediction model and the initial shear stiffness.In this study, four-point shear fatigue tests under four external factors(i.e.shear stress amplitude, temperature, loading frequency, normal stress) were carried out and Initial Shear Stiffness(ISS) and Shear Stiffness Decay Rate(SSDR) of interlayer performance were obtained.Nonlinear multiple regression models for ISS and SSDR were established, respectively.And an interlayer fatigue life Nf prediction model was constructed based on ISS and SSDR.The results show that:(1) the influence degree of four external factors on the interlayers ISS ranks:temperature>shear stress amplitude>loading frequency>normal stress; the influence degree of four external factors on the decay rate of interlayer shear stiffness ranks:normal stress > temperature > shear stress amplitude > loading frequency; the influence degree of four external factors on interlayer fatigue life ranks:temperature>normal stress>shear stress amplitude>loading frequency; (2) the interlayer fatigue life Nf prediction model based on ISS and SSDR realizes the correlation among the three indexes of the interlayer fatigue life Nf, ISS and SSDR.The research results provide a new way for the prediction of interlayer fatigue life and a theoretical support for strengthening interlayer design. © 2020, Editorial Department, Journal of South China University of Technology. All right reserved.
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页码：58 / 66and74
页数：6616
相关论文
共 23 条
  • [1] GE Z, WANG H, ZHANG Q, Et al., Glass fiber reinforced asphalt membrane for interlayer bonding between asphalt overlay and concrete pavement [J], Construction and Building Materials, 101, pp. 918-925, (2015)
  • [2] MOHAMMAD L, RAQIB M A, HUANG B., Influence of asphalt tack coat materials on interface shear strength [J], Transportation Research Record Journal of the Transportation Research Board, 1789, 1, pp. 56-65, (2002)
  • [3] SONG W, SHU X, HUANG B, Et al., Laboratory investigation of interlayer shear fatigue performance between open-graded friction course and underlying layer [J], Construction and Building Materials, 115, pp. 381-389, (2016)
  • [4] CHUN S, KIM K, GREENE J, Et al., Evaluation of interlayer bonding condition on structural response cha-racteristics of asphalt pavement using finite element analysis and full-scale field tests [J], Construction and Building Materials, 96, pp. 307-318, (2015)
  • [5] LUO X, GU F, LYTTON R L., Mechanistic composition-specific fatigue life of asphalt pavements [J], Journal of Engineering Mechanics, 143, 12, (2017)
  • [6] KRUNTCHEVA M R, COLLOP A C, THOM N H, Et al., The effect of bond condition on flexible pavement performance [J], Journal of Transportation Enginee-ring, 131, 11, pp. 880-888, (2005)
  • [7] RAHMAN Ali, LIU Hongpo, AI Changfa, RAHMAN Ali, Et al., Characterization of interlayer bonding in asphalt pavement based on direct tension test with horizontal loading [J], Journal of Chang'an University(Natural Science Edition), 37, 3, pp. 16-23, (2017)
  • [8] AL-KHATEEB G G, GHUZLAN K A., The combined effect of loading frequency, temperature, and stress level on the fatigue life of asphalt paving mixtures using the IDT test configuration [J], International Journal of Fatigue, 59, pp. 254-261, (2014)
  • [9] (2017)
  • [10] LI Sheng, LIU Zhaohui, LI Yuzhi, Et al., Shear fatigue test of interlayer interface of rigid flexible compo-site pavement, Journal of Civil Engineering, 46, 7, pp. 151-156, (2013)
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