[1] Li QiangYang HuanhuanZhang ShuaiMa Xiang,. Analysis on fatigue cracking for asphalt surface layersbased on field cores [J]. Journal of Southeast University (English Edition), 2016, 32 (3): 356-361. [doi:10.3969/j.issn.1003-7985.2016.03.016]

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Analysis on fatigue cracking for asphalt surface layersbased on field cores()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

32

Issue:

2016 3

Page:

356-361

Research Field:

Traffic and Transportation Engineering

Publishing date:

2016-09-20

Info

Title:

Analysis on fatigue cracking for asphalt surface layersbased on field cores

Author(s):

Li QiangYang HuanhuanZhang ShuaiMa Xiang

School of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China

Keywords:

pavement engineering;  asphalt mixture;  fatigue cracking;  core sample;  semi-circular bending test

PACS:

U416.217

DOI:

10.3969/j.issn.1003-7985.2016.03.016

Abstract:

Field cores from typical cracking locations were tested by the semi-circular bending test and the digital image correlation method to evaluate the anti-fatigue performance of different asphalt pavements. Test results were analyzed by different fatigue models. Causes of fatigue cracking for different pavement sections were determined by extraction and sieving test results. It is found that the ranking(from high to low)in terms of the anti-fatigue performance for field cores is the crumb rubber modified asphalt mixture, dense-graded modified asphalt mixture, continuous graded asphalt treated base, gap-graded stone asphalt concrete, and half open-graded asphalt macadam. Compared with the half open-graded asphalt macadam, the fatigue life of the crumb rubber modified asphalt mixture improves by 2.0 to 3.8 times. Fatigue lives of different mixtures and distress ratios of actual pavements can be accurately predicted by the dissipated energy density ratio. Causes of fatigue cracking vary with mixture types.

References:

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[7] Iskender E, Aksoy A. Field and laboratory performance comparison for asphalt mixtures with different moisture conditioning systems [J]. Construction and Building Materials, 2012, 27: 45-53. DOI:10.1016/j.conbuildmat.2011.08.019.
[8] Xia H. The corresponding examination for asphalt pavement layer’s fatigue fracture performance based on core samples [D]. Guangzhou: School of Civil Engineering and Transportation, South China University of Technology, 2011.(in Chinese)
[9] Dai Y Q, Sun Z Y, Wu G, et al. Whole field deformation measurement of concrete structure based on digital image correlation [J]. Journal of Southeast University(Natural Science Edition), 2010, 40(4): 829-834.(in Chinese)
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Memo

Memo:

Biography: Li Qiang(1982—), male, doctor, associate professor, liqiang2526@njfu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51308303), the Natural Science Foundation of Jiangsu Province(No.BK20130980), Qing Lan Project, the Practice Innovation Training Program Projects for the Jiangsu College Students(No.201410298024Z), the Scientific Innovation Research of College Graduates in Jiangsu Province(No. SJLX15_0418).
Citation: Li Qiang, Yang Huanhuan, Zhang Shuai, et al. Analysis on fatigue cracking for asphalt surface layers based on field cores[J].Journal of Southeast University(English Edition), 2016, 32(3):356-361.DOI:10.3969/j.issn.1003-7985.2016.03.016.

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