Physical Properties and Rheological Characteristics of Cigarette Butt-Modified Asphalt Binders
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.1.1. Asphalt
2.1.2. Preparation of CB Modifier
2.1.3. Preparation of CB-Modified Asphalt Binder
2.2. Experimental Methods
2.2.1. Physical Property Tests
2.2.2. Viscosity Test
2.2.3. Storage Stability Test
2.2.4. Temperature Sweep Test
2.2.5. Frequency Sweep Test
3. Results and Discussion
3.1. Physical Properties
3.2. Brinell Viscosity
3.3. Storage Stability
3.4. Temperature Sweep Tests
3.5. Frequency Sweep Test
4. Conclusions
- (1)
- The cellulose acetate fibers in CBs can add consistency and hardness to asphalt. With the increase in the CB content in the asphalt mixtures, the penetration value of the CB-modified asphalt adhesive decreased, the softening point increased, the ductility dropped significantly, and the viscosity increased, leading to poorer storage stability. CBs enhanced the shear resistance and high-temperature stability of the asphalt binder but reduced its low-temperature crack resistance and storage stability.
- (2)
- CBs can enhance the high-temperature stability of asphalt binders but reduce their low-temperature stability. At the same temperature, as the CB content increased, the G* of the modified asphalt binder gradually increased, indicating a higher proportion of elastic components in the modified asphalt and an improved resistance to deformation. The G* of the modified asphalt also showed an upward trend with the increasing loading frequency, suggesting that the asphalt’s resistance to deformation improved with the increase in the loading frequency.
- (3)
- This study provides a reference for applying CB-modified asphalt. Recycling CBs contributes to environmental protection and promotes recycling efforts. However, when the content of CBs reaches 2%, the storage stability of the modified asphalt fails to meet the requirements of the Chinese standard JTG F40-2004 for SBS-modified asphalt. Further research is needed to improve the storage stability and low-temperature stability of CB-modified asphalt mixtures.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
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Hu, X.; Chen, X.; Yu, J.; Cheng, G.; Yuan, Y.; Zhang, L. Physical Properties and Rheological Characteristics of Cigarette Butt-Modified Asphalt Binders. Coatings 2025, 15, 170. https://doi.org/10.3390/coatings15020170
Hu X, Chen X, Yu J, Cheng G, Yuan Y, Zhang L. Physical Properties and Rheological Characteristics of Cigarette Butt-Modified Asphalt Binders. Coatings. 2025; 15(2):170. https://doi.org/10.3390/coatings15020170
Chicago/Turabian StyleHu, Xinhe, Xianglong Chen, Jie Yu, Gang Cheng, Yunxiao Yuan, and Lizhou Zhang. 2025. "Physical Properties and Rheological Characteristics of Cigarette Butt-Modified Asphalt Binders" Coatings 15, no. 2: 170. https://doi.org/10.3390/coatings15020170
APA StyleHu, X., Chen, X., Yu, J., Cheng, G., Yuan, Y., & Zhang, L. (2025). Physical Properties and Rheological Characteristics of Cigarette Butt-Modified Asphalt Binders. Coatings, 15(2), 170. https://doi.org/10.3390/coatings15020170