Synthesis and effect of encapsulating rejuvenator fiber on the performance of asphalt mixture

Benan Shu, Shiwen Bao, Shaopeng Wu, Lijie Dong, Chao Li, Xu Yang, José Norambuena-Contreras, Quantao Liu, Qing Wang

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

The idea of prolonging the service life of asphalt mixture by improving the self-healing ability of asphalt has received extensive attention in recent years. In view of this, this work synthesized three kinds of encapsulating rejuvenator fibers to improve self-healing properties of asphalt mixtures. A series of characterizations were performed to study the morphology, chemical structure and thermal stability of the three kinds of fibers. Subsequently, the road performance of asphalt mixture containing the fiber were investigated, which included high and low temperature, water sensitivity and fatigue performances. Finally, the self-healing performance of asphalt mixture containing the fiber was investigated by 3PB test. The results revealed that the three kinds of encapsulating rejuvenator fibers were successfully synthesized. The fibers had excellent thermal stability, which met temperature requirements in the mixing and compaction process of asphalt mixtures. Road performance of asphalt mixture containing the fiber met the requirements. Self-healing ability of asphalt mixture containing the fiber was improved. Synergistic action of temperature and rejuvenator could further significantly improve the self-healing ability of the asphalt mixture.

Original languageEnglish (US)
Article number1266
JournalMaterials
Volume12
Issue number8
DOIs
StatePublished - 2019

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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    Shu, B., Bao, S., Wu, S., Dong, L., Li, C., Yang, X., Norambuena-Contreras, J., Liu, Q., & Wang, Q. (2019). Synthesis and effect of encapsulating rejuvenator fiber on the performance of asphalt mixture. Materials, 12(8), [1266]. https://doi.org/10.3390/ma12081266