Study on Preparation and Properties of Polyurethane- Epoxy Composite Emulsion Modified Emulsified Asphalt

Minghao Mu; Xinqiang Liu; Haisong Bi; Zheng Wang; Chengduo Qian; Xiufen Liu; Yifan Liu; Xue Li

doi:10.2991/978-94-6463-514-0_38

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Study on Preparation and Properties of Polyurethane- Epoxy Composite Emulsion Modified Emulsified Asphalt

Authors

Minghao Mu¹, Xinqiang Liu¹, Haisong Bi¹, Zheng Wang¹, Chengduo Qian¹, Xiufen Liu², Yifan Liu², Xue Li²^{, *}

¹Shandong Hi-speed Group Innovation Research Institute, Jinan, 250100, China

²Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan, 250022, People’s Republic of China

^*Corresponding author. Email: chm_lix@ujn.edu.cn

Corresponding Author

Xue Li

Available Online 28 September 2024.

DOI: 10.2991/978-94-6463-514-0_38 How to use a DOI?
Keywords: waterborne polyurethane; epoxy resin; emulsified asphalt; asphalt performance
Abstract: In this study, epoxy resin modified waterborne polyurethane (EWPU) modified emulsified asphalt was successfully prepared by using self-made EWPU emulsion. Firstly, the optimal dosage range of EWPU was determined based on the evaporation residue content, remaining amount on sieve and storage stability of the modified emulsified asphalt. Secondly, the curing system of EWPU modified emulsified asphalt was investigated, and the optimal ratio of epoxy resin to curing agent and curing time were determined through mechanical property testing. Finally, the conventional properties of EWPU modified emulsified asphalt were characterized by using three indicators: penetration, softening point, and ductility. The microstructure and thermal properties were evaluated using fluorescence microscopy, infrared spectroscopy (IR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The results showed that the content of EWPU modifiers has a significant impact on the distribution of EWPU in emulsified asphalt. When the content of EWPU is changed from 5% to 20%, the EWPU modified asphalt emulsion has good storage stability. The mechanical performance test shows that the best performance is achieved when the ratio of epoxy resin to curing agent is 1:1 and the curing time is 24 hours. EWPU has a dual effect of physical and chemical modification in the process of emulsified asphalt modification. In addition, EWPU modification improves the thermal stability of emulsified asphalt.
Copyright: © 2024 The Author(s)
Open Access: Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title: Proceedings of the 2024 7th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA 2024)
Series: Advances in Engineering Research
Publication Date: 28 September 2024
ISBN: 978-94-6463-514-0
ISSN: 2352-5401
DOI: 10.2991/978-94-6463-514-0_38 How to use a DOI?
Open Access: Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

ris enw bib

TY  - CONF
AU  - Minghao Mu
AU  - Xinqiang Liu
AU  - Haisong Bi
AU  - Zheng Wang
AU  - Chengduo Qian
AU  - Xiufen Liu
AU  - Yifan Liu
AU  - Xue Li
PY  - 2024
DA  - 2024/09/28
TI  - Study on Preparation and Properties of Polyurethane- Epoxy Composite Emulsion Modified Emulsified Asphalt
BT  - Proceedings of the 2024 7th International Symposium on Traffic Transportation and Civil Architecture (ISTTCA 2024)
PB  - Atlantis Press
SP  - 378
EP  - 391
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-514-0_38
DO  - 10.2991/978-94-6463-514-0_38
ID  - Mu2024
ER  -

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