Durability evaluation of mechanical and bonding properties of polyurethane-modified waterborne epoxy resin for road

To further improve the application quality of the waterborne epoxy resin (WER) in road engineering, a variety of WER and polyurethane-modified WER were prepared. The WER was treated by acid solution immersion, alkali solution immersion, salt solution immersion, oil immersion or artificial-accelerate...

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Bibliographic Details
Published inThe international journal of pavement engineering Vol. 24; no. 2
Main Authors Fu, Hao, Wang, Chaohui, Wang, Daotuan, Chen, Qian, Zhang, Dan, Huang, Shuai, Tan, Songyuan
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 28.01.2023
Taylor & Francis LLC
Subjects
Aging
Aging (artificial)
bonding property
Corrosion resistance
Durability
Epoxy resins
Mechanical properties
polyurethane
Polyurethane resins
Road engineering
Road materials
Saline solutions
Submerging
waterborne epoxy resin
Xenon lamps
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Summary:To further improve the application quality of the waterborne epoxy resin (WER) in road engineering, a variety of WER and polyurethane-modified WER were prepared. The WER was treated by acid solution immersion, alkali solution immersion, salt solution immersion, oil immersion or artificial-accelerated aging. The mechanical properties of the WER before and after the treatment by various methods were tested. Based on the ideal point method of entropy weight, the influence degree of each treatment method on the mechanical properties of the WER was analysed, and the mechanical properties decay and residual mechanical properties of the WER were evaluated. The bonding durability of the WER was analysed. The results show that after the xenon lamp aging treatment, the mechanical properties of the WER decreased most significantly. The mechanical durability of the WER modified by polyurethane is improved to a certain extent, and the retention rates of their mechanical properties are >85%. After treatment by various corrosion or aging methods, the retention rates of mechanical properties of the PUE-E44 WER are >89.29%, showing an improved corrosion and aging resistance. The residual mechanical and bonding properties of the PUD-E51 WER are at a high level, and still show improved mechanical and bonding properties.
ISSN:1029-8436
1477-268X
DOI:10.1080/10298436.2022.2027419