Contribution of Oxygen and Ultraviolet Light to the Adhesion Properties of Warm Mix Asphalt During the Light-Oxidative Coupling Ultraviolet Aging Process
The results showed that UV aging had the greatest effect on the adhesion property index and functional group index of WMA, followed by PAV aging, and RTFOT aging had the least effect. With the extension of UV aging time, the adhesion and cohesion functions of WMA showed a decreasing trend, while the carbonyl index and sulfoxide index showed an increasing trend. When the UV aging time exceeded 150 h, the adhesion function and functional group index of WMA gradually tended to stabilize. The effect of UV aging on the adhesive properties of WMA was mainly due to adhesive damage. There were significant differences in the effects of oxygen isolation and light-oxygen-coupled UV aging on the adhesive properties and functional group index of WMA. In the light-oxygen-coupled UV aging of warm mix asphalt, the contribution of UV radiation was 79.9%, and the contribution of oxygen was 20.1%.
Authors
- Jianbing Ma (ORCID: https://orcid.org/0000-0001-8254-149X)
- Mingxing Fu
- Yongning Wang (ORCID: https://orcid.org/0009-0006-8897-664X)
- Xiaomin Li (ORCID: https://orcid.org/0000-0002-5015-656X)
- Bo Li (ORCID: https://orcid.org/0000-0001-8828-7840)
- Xiaoyu Ren (ORCID: https://orcid.org/0000-0002-5144-1098)
- Dongna Li (ORCID: https://orcid.org/0000-0002-3856-3955)
Institutions
- Lanzhou Jiaotong University (CN)
- Yunnan Forestry Vocational and Technical College (CN)
- Guzhou Transportation Planning Survey & Design Academe (China) (CN)
- Yunnan Investment Group (China) (CN)
Publication Details
- Journal
- Materials
- Published
- 2025-03-18
- DOI
- https://doi.org/10.3390/ma18061345
- Primary Topic
- Asphalt Pavement Performance Evaluation
- Type
- article
- Field-Weighted Citation Impact
- 0.00