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A platform for research: civil engineering, architecture and urbanism
Effect of Thermo-oxidative Aging on Properties of Compound High Viscosity Modified Asphalt and Mixture
The aging of asphalt is the main reason for the performance degradation of porous asphalt pavement. The purpose of this article is to investigate the aging behavior of high-viscosity agent / styrene-butadiene-styrene (SBS)-modified asphalt and asphalt mixtures. To this end, samples of asphalt and asphalt mixtures with different degrees of aging were prepared, and the rheological properties of asphalt before and after aging were evaluated using frequency scan test and Multiple Stress Creep Recovery Test (MSCR). The high-temperature performance of asphalt mixtures was analyzed using the wheel tracking test, and the water stability of asphalt mixtures was comprehensively evaluated through the immersion Marshall test, immersion Kendeberg fragmentation test, and freeze-thaw splitting test. The results show that through linear fitting of 79 sets of data, the complex modulus of asphalt has a significant dependence on the loading frequency (correlation coefficient not less than 0.98). The main curve of asphalt modulus can be constructed on a double logarithmic coordinate system, and the high viscosity agent /SBS-modified asphalt prepared is more suitable for configuration in high-speed driving areas. Aging weakens the rebound performance of asphalt and the water stability of asphalt mixtures, but the compounding effect of high viscosity agent and SBS can to a certain extent inhibit this aging effect. High viscosity agent/SBS can better meet the needs of porous asphalt pavement materials and is a better choice of asphalt material.
Effect of Thermo-oxidative Aging on Properties of Compound High Viscosity Modified Asphalt and Mixture
The aging of asphalt is the main reason for the performance degradation of porous asphalt pavement. The purpose of this article is to investigate the aging behavior of high-viscosity agent / styrene-butadiene-styrene (SBS)-modified asphalt and asphalt mixtures. To this end, samples of asphalt and asphalt mixtures with different degrees of aging were prepared, and the rheological properties of asphalt before and after aging were evaluated using frequency scan test and Multiple Stress Creep Recovery Test (MSCR). The high-temperature performance of asphalt mixtures was analyzed using the wheel tracking test, and the water stability of asphalt mixtures was comprehensively evaluated through the immersion Marshall test, immersion Kendeberg fragmentation test, and freeze-thaw splitting test. The results show that through linear fitting of 79 sets of data, the complex modulus of asphalt has a significant dependence on the loading frequency (correlation coefficient not less than 0.98). The main curve of asphalt modulus can be constructed on a double logarithmic coordinate system, and the high viscosity agent /SBS-modified asphalt prepared is more suitable for configuration in high-speed driving areas. Aging weakens the rebound performance of asphalt and the water stability of asphalt mixtures, but the compounding effect of high viscosity agent and SBS can to a certain extent inhibit this aging effect. High viscosity agent/SBS can better meet the needs of porous asphalt pavement materials and is a better choice of asphalt material.
Effect of Thermo-oxidative Aging on Properties of Compound High Viscosity Modified Asphalt and Mixture
Atlantis Highlights in Engineering
Zende, Abhijit Mohanrao (editor) / Tian, Yongding (editor) / Chen, Lingkun (editor) / Jahromi, Saeed Ghaffarpour (editor) / Ge, Chunlei (author) / Li, Zhaoyang (author) / Qin, Yue (author)
International Conference on Structural Seismic Resistance, Monitoring and Detection ; 2024 ; Harbin, China
2024-04-27
20 pages
Article/Chapter (Book)
Electronic Resource
English
Effects of Oxidative Aging on Asphalt Mixture Properties
| British Library Online Contents | 2012