Micro-morphology of the epoxy asphalt cured with a bio-based curing agent and the performance of the asphalt mixture

IF 3.2 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives Pub Date : 2025-02-10 DOI:10.1016/j.ijadhadh.2025.103980

Suyu Zhang , Shiyun Kan , Fusheng Wen , Jia Sun , Zengping Zhang , Peijun Tian , Yang Yang

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引用次数: 0

Abstract

The use of bio-based materials can alleviate the pressure on petroleum resources and promote the eco-friendly and sustainable development of road engineering. This study prepared EP/MYM/CTBN (EMC) epoxy asphalt and mixtures using the bio-based curing agent Maleic anhydride/Laurene (MYM). First, Fourier transform infrared spectroscopy was utilized to track the changes in functional groups within the EMC epoxy asphalt system. Second, the curing process of EMC epoxy asphalt was observed using fluorescence microscopy (FM). Then, tensile test, viscosity test, and scanning electron microscope (SEM) were used to study the mechanical properties, viscosity characteristics, and microstructure of EMC epoxy asphalt with different modifier dosages. Finally, the road performance of EMC epoxy asphalt was investigated. The results showed that the curing reaction of EP and MYM improved the high temperature performance of the asphalt. The three-dimensional crosslinked network of EMC epoxy asphalt was gradually formed with increasing curing time. The three-dimensional network stabilized at a curing time of 240 min, giving the material excellent mechanical properties. The optimum content of EMC was determined to be 50 % of the total mass of EMC epoxy asphalt. The high temperature stability of EMC epoxy asphalt mixtures is close to that of petroleum-based epoxy asphalt mixtures, and due to the addition of CTBN, EMC epoxy asphalt mixtures have excellent low-temperature performance and water stability.

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来源期刊

International Journal of Adhesion and Adhesives 工程技术-材料科学：综合

CiteScore

6.90

自引率

8.80%

发文量

200

审稿时长

8.3 months

期刊介绍： The International Journal of Adhesion and Adhesives draws together the many aspects of the science and technology of adhesive materials, from fundamental research and development work to industrial applications. Subject areas covered include: interfacial interactions, surface chemistry, methods of testing, accumulation of test data on physical and mechanical properties, environmental effects, new adhesive materials, sealants, design of bonded joints, and manufacturing technology.