Laboratory investigation on electrical and mechanical properties of asphalt mixtures for potential snow-melting and deicing pavements

This study aims to develop electrically conductive asphalt (ECA) mixtures utilizing carbon fiber and/or graphite for potential snow/ice-melting pavements without compromising the mechanical properties. The results showed that an electrical resistivity of 0.7–2.7 Ω·m could be potentially used as the design resistivity of ECA mixtures. 6 mm was the optimum length of carbon fiber for improving electrical conductivity. The ECA mixtures had a comparable or higher Marshall stiffness and indirect tensile strength than the control mixture. Adding carbon fiber alone significantly improved the cracking resistance of single-phase ECA mixtures, while the cracking performance of two-phase ECA mixtures was highly affected by the combinations of carbon fiber and graphite. Four ECA mixtures could meet the design resistivity requirement, while only one single-phase ECA mixture containing 6 vol% (by volume of binder) carbon fiber and one two-phase ECA mixture made with 3 vol% carbon fiber and 15 vol% graphite did not impair the cracking resistance.

• Record URL:
  • https://doi.org/10.1016/j.conbuildmat.2024.134901
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S0950061824000424
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09500618
• Supplemental Notes:
  • © 2024 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Wang, Yanhai
  • 0000-0003-1308-8411
  • Chen, Xingwei
  • Lu, Hang
  • 0000-0002-1010-540X
  • Xiao, Rui
  • Hu, Wei
  • Jiang, Xi
  • Zhou, Hongyu
  • Huang, Baoshan
  • 0000-0001-8551-0082
• Publication Date: 2024-1-26

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 134901
• Serial:
  • Construction and Building Materials
  • Volume: 413
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0950-0618
  • Serial URL: http://www.sciencedirect.com/science/journal/09500618?sdc=1

Subject/Index Terms

• TRT Terms: Asphalt mixtures; Carbon fibers; Deicing; Electrical conductivity; Mechanical properties; Snow and ice control
• Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01905014
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 19 2024 8:52AM