Abstract
To study the long-term performance of warm mix asphalt mixtures, this paper added three warm mix agents with different cooling mechanisms, including the organic viscosity reducer Sasobit, synthetic zeolite Aspha-min, and surfactant DWMA-1, to realize the warm mixing of mixtures. Meanwhile, the oven heating method was employed to simulate the long-term aging of mixtures. The high and low-temperature performance and water stability of mixtures before and after aging were compared, and the anti-aging properties of warm mix asphalt mixtures were analyzed, with the fatigue cracking resistance of warm mix asphalt mixtures studied via the splitting fatigue test and semi-cylindrical crack propagation test. The results show that Sasobit and Aspha-min improve the high-temperature performance of the mixture, but both degrade the low-temperature performance and water stability of the mixture to varying degrees. DWMA-1 improves the low-temperature performance and water stability of the mixture. The performance of Sasobit and DWMA-1 warm mix asphalt mixtures declines slightly after long-term aging and has sound anti-aging properties. Additionally, Sasobit improves the fatigue life of the mixture, with the specimens exhibiting brittle failure characteristics. Aspha-min and DWMA-1 have little effect on the fatigue performance of the mixture, and the specimens exhibit plastic failure characteristics. The durability indicators of warm mix asphalt mixtures are better than those of hot mix asphalt mixtures.
Publication Date
11-8-2022
DOI
10.14048/j.issn.1671-2579.2022.05.034
First Page
189
Last Page
193
Submission Date
April 2025
Recommended Citation
Quyuan, Li; Naixing, Liang; Zhuolin, Yang; and Cheng, Zeng
(2022)
"Study on Long Term Performance of Different Types of Warm Mix Asphalt Mixture,"
Journal of China & Foreign Highway: Vol. 42:
Iss.
5, Article 34.
DOI: 10.14048/j.issn.1671-2579.2022.05.034
Available at:
https://zwgl1980.csust.edu.cn/journal/vol42/iss5/34
Reference
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