| Issue |
E3S Web Conf.
Volume 165, 2020
2020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|
|
|---|---|---|
| Article Number | 04078 | |
| Number of page(s) | 4 | |
| Section | Civil, Architectural Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202016504078 | |
| Published online | 01 May 2020 | |
Effect of Organic Montmorillonite on Properties of High-viscosity Modified Asphalt
College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China
* Corresponding author’s e-mail:gym_yz@163.com
In order to investigate the effect of organic montmorillonite (OMMT) and its content on properties of high-viscosity modified asphalt, a series of laboratory tests were carried out through zero shear viscosity (ZSV) at 60 °C, rutting factor, ductility at 5 °C, and fatigue factor to analyze high-temperature, low-temperature and anti-fatigue properties of high-viscosity modified asphalt with different OMMT contents. The results show that OMMT/high-viscosity modifier (HVM) composite modification can improve obviously high-temperature performance and fatigue resistance of high-viscosity modified asphalt, but the best improvement effect can be achieved only when adding proper amount of OMMT. The addition of a small amount of OMMT has little effect on low-temperature performance of high-viscosity modified asphalt, but when the content of OMMT exceeds 4%, its low-temperature performance will decrease significantly. The addition of OMMT can improve the temperature sensitivity of high-viscosity modified asphalt’s high-temperature performance, but reduces the temperature sensitivity of its fatigue resistance.
© The Authors, published by EDP Sciences, 2020
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