Regeneration Effects of Epoxy Compounds on Aged SBS Modified Asphalt

Styrene-butadiene-styrene (SBS) modified asphalt is an important material to improve the quality of high-grade pavements and airport runways. It will deteriorate during its service life due to a combination of environmental factors, leading to pavement disease which triggers the maintenance and reconstruction. In this process, an amount of reclaimed asphalt pavement (RAP) will be produced. For environment protection and resource reservation, RAP is usually regenerated by a rejuvenator. In this paper, reactive rejuvenators were prepared by epoxy compounds for regenerating aged SBS modified asphalt (A-SBSMA), and the changes in physical properties, rheological properties, chemical structure, and microscopic morphology of the regeneration of A-SBSMA before and after were investigated to evaluate the regeneration effect. Compared with traditional rejuvenators, the significant effect of reactive rejuvenators on the recovery of physical properties and rheological properties of A-SBSMA. By FTIR and microscopic morphology analysis, reactive rejuvenator can better recover the functional group species, broken SBS molecular structure, and network structure of A-SBSMA.

• Record URL:
  • https://doi.org/10.1061/9780784485255.013
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784485255
• Supplemental Notes:
  • © 2023 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Xu, Song
  • Tang, Guangming
  • Zhou, Jihong
  • Cao, Zhilong
  • Luo, Yuyang
  • Jia, Xiaojuan
• Conference:
  • 13th International Conference on Road and Airfield Pavement Technology
  • Location: Beijing , China
  • Date: 2023-7-6 to 2023-7-8
• Publication Date: 2024

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 144-154
• Monograph Title: International Conference on Road and Airfield Pavement Technology 2023

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Epoxides; Reclaimed asphalt pavements; Rejuvenators; Styrene butadiene styrene
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 01916673
• Record Type: Publication
• ISBN: 9780784485255
• Files: TRIS, ASCE
• Created Date: Apr 25 2024 9:33AM