[1] Zhang Meng, Qian Zhendong,. Effects of freeze-thaw cycles on fracture behaviorof epoxy asphalt concrete [J]. Journal of Southeast University (English Edition), 2017, 33 (1): 96-100. [doi:10.3969/j.issn.1003-7985.2017.01.016]

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Effects of freeze-thaw cycles on fracture behaviorof epoxy asphalt concrete()

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

Volumn:

33

Issue:

2017 1

Page:

96-100

Research Field:

Traffic and Transportation Engineering

Publishing date:

2017-03-30

Info

Title:

Effects of freeze-thaw cycles on fracture behaviorof epoxy asphalt concrete

Author(s):

Zhang Meng;  Qian Zhendong

Intelligent Transportation System Research Center, Southeast University, Nanjing 210096, China

Keywords:

freeze-thaw cycle;  epoxy asphalt concrete;  flexural modulus;  fracture energy;  plane strain fracture toughness

PACS:

U443.33

DOI:

10.3969/j.issn.1003-7985.2017.01.016

Abstract:

According to the winter temperature of Peking, the freeze-thaw(FT)condition in laboratory was determined. Seven groups of epoxy asphalt concrete(EAC)specimen were exposed to different FT cycles. The flexural modulus and fracture energy(G_F)of EAC exposed to different FT cycles were obtained through the 3-point bending test. Meanwhile, the plane strain fracture toughness(K_IC)of EAC was obtained through numerical simulation. The results show that the flexural modulus of the FT conditioned EAC samples decreases with the increase of FT cycles. The FT damage of flexural modulus is 60% after 30 FT cycles. Nevertheless, with the increase of FT cycles, the G_F and K_IC of EAC decrease first and then increase after 15 FT cycles.

References:

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Memo

Memo:

Biographies: Zhang Meng(1989—), male, graduate; Qian Zhendong(corresponding author), female, doctor, professor, qianzd@seu.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.51378122).
Citation: Zhang Meng, Qian Zhendong. Effects of freeze-thaw cycles on fracture behavior of epoxy asphalt concrete[J].Journal of Southeast University(English Edition), 2017, 33(1):96-100.DOI:10.3969/j.issn.1003-7985.2017.01.016.

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