Effect of Thermo-oxidative Aging on Properties of Compound High Viscosity Modified Asphalt and Mixture

DOI

10.2991/978-94-6463-404-4_13How to use a DOI?

Keywords

Thermal oxygen aging; high viscosity agent / SBS compound modified asphalt; Rheological properties; MSCR; Water stability

Abstract

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.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Chunlei Ge
AU  - Zhaoyang Li
AU  - Yue Qin
PY  - 2024
DA  - 2024/04/29
TI  - Effect of Thermo-oxidative Aging on Properties of Compound High Viscosity Modified Asphalt and Mixture
BT  - Proceedings of the 2024 3rd International Conference on Structural Seismic Resistance, Monitoring and Detection (SSRMD 2024)
PB  - Atlantis Press
SP  - 114
EP  - 133
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-404-4_13
DO  - 10.2991/978-94-6463-404-4_13
ID  - Ge2024
ER  -