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Road Materials and Pavement Design Volume 25, 2024 - Issue 5
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Research Articles

Effects of waterborne epoxy resin on the fatigue performance of bitumen emulsion

Rui Lia National & Local Joint Engineering Research Center of Transportation and Civil Engineering Materials, Chongqing Jiaotong University, Chongqing, People’s Republic of China;b Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, People’s Republic of China;c School of Civil Engineering, Chongqing Jiaotong University, Chongqing, People’s Republic of ChinaORCID Iconhttps://orcid.org/0000-0002-4367-3809View further author information
ORCID Icon,
Zhen Lengb Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, People’s Republic of China;d Research Centre for Resources Engineering towards Carbon Neutrality, The Hong Kong Polytechnic University, Hong Kong SAR, People’s Republic of ChinaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-7797-1134View further author information
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Hui Lib Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, People’s Republic of China;e School of Transportation, Southeast University, Nanjing, People’s Republic of ChinaView further author information
,
Hongzhou Zhua National & Local Joint Engineering Research Center of Transportation and Civil Engineering Materials, Chongqing Jiaotong University, Chongqing, People’s Republic of China;c School of Civil Engineering, Chongqing Jiaotong University, Chongqing, People’s Republic of ChinaORCID Iconhttps://orcid.org/0000-0001-7478-3923View further author information
ORCID Icon,
Lingyun Konga National & Local Joint Engineering Research Center of Transportation and Civil Engineering Materials, Chongqing Jiaotong University, Chongqing, People’s Republic of China;c School of Civil Engineering, Chongqing Jiaotong University, Chongqing, People’s Republic of ChinaView further author information
&
Xiong Xuf School of Civil Engineering and Architecture, Wuhan Institute of Technology, Wuhan, People’s Republic of ChinaView further author information
Pages 1054-1067 | Received 14 Oct 2022, Accepted 22 Jun 2023, Published online: 13 Jul 2023
 
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Abstract

Bitumen emulsion faces the major concern of low mechanical strength, especially at high service temperatures. To improve the mechanical performance of bitumen emulsion, waterborne epoxy resin was used as a modifier in this study. The effects of waterborne epoxy resin on the fatigue performance of bitumen emulsion were evaluated in this study using both the stress-controlled time sweep test and linear amplitude (LAS) test. The dissipated energy concept and viscoelastic continuum damage (VECD) theory were adopted to analyze the fatigue testing data obtained from the time sweep test and LAS test, respectively. It is found that the fatigue life of the emulsion residues increased with the incorporation of waterborne epoxy resin from the time sweep test conducted at the stress levels from 300 kPa to 500 kPa. On the other hand, the LAS test indicated that the trend of the predicted fatigue life of the emulsion residues was strain dependent.

Acknowledgment

The authors would like to acknowledge the sponsorship of the Hong Kong Innovation and Technology Commission through the Guangdong-Hong Kong Technology Cooperation Funding Scheme (TCFS) project GHP/116/18GD.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Data availability statement

The data that support the findings of this study are available upon reasonable request.

Additional information

Funding

This work was supported by Hong Kong Innovation and Technology Commission [grant number GHP/116/18GD].

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