Advertisement
Published in:
2022 | OriginalPaper | Chapter
Investigating Fatigue Characteristics of Asphalt Binder Modified with Phase Change Materials Using Dynamic Shear Rheometer
Authors : Haya Almutairi, Dandi Zhao, Hassan Baaj
Published in: Proceedings of the RILEM International Symposium on Bituminous Materials
Publisher: Springer International Publishing
Activate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
This paper aims to evaluate fatigue properties of asphalt binder modified with different percentages of phase change materials (PCM) using dynamic shear rheometer. Phase change materials (PCM) are materials that absorb, store, and release thermal energy during the thermal cycle process. Even though this property can be used to create a self-temperature controlling pavement, very limited studies have been conducted to investigate the effect of using PCMs on binder and mix performance, and therefore the pavement performance. In this study, Linear Amplitude Sweep (LAS) tests were performed to evaluate the fatigue characteristics of an asphalt binder that contains two percentages (by weight) of PCM; 3 and 6%. The results were then compared with virgin asphalt binder. Moreover, the asphalt binder with different percentage of PCM was tested under the Environmental Scanning Electron Microscope (ESEM) and results show a significant difference in the microstructure comparing with the virgin asphalt binder.