Potentials of Mitigating Pavement Frost Heave with Fungi

In this study, an innovative fungal-mediated technique is proposed to mitigate the frost heave in unsaturated pavement foundation. A bio-safe fungal strain, Pleurotus ostreatus, was fed with wheat straw and developed fungal mycelium successfully. A finite element model was established to investigate the mitigation of frost heave in unsaturated soil when growing fungi on the surface of pavement embankment. The results show that fungi slightly reduce the water content in pavement under the low rainfall intensity, which renders pavement unsusceptible to the freezing climate. Using the frost heave in pavement without fungi as a baseline, the frost heave is reduced to 83.63% at the center and to 61.20% at the shoulder edge by the fungal-mediated technique.

• Record URL:
  • https://doi.org/10.1061/9780784485330.071
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784485330
• Supplemental Notes:
  • © 2024 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Zhang, Xijin
  • Jiang, Yusheng
  • Fan, Xudong
  • Yu, Xiong
• Conference:
  • Geo-Congress 2024
  • Location: Vancouver British Columbia, Canada
  • Date: 2024-2-25 to 2024-2-28
• Publication Date: 2024

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 704-713
• Monograph Title: Geo-Congress 2024: Soil Improvement, Sustainability, Geoenvironmental, and Cold Regions Engineering

Subject/Index Terms

• TRT Terms: Frost heaving; Fungi; Moisture content; Pavements
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 01918380
• Record Type: Publication
• ISBN: 9780784485330
• Files: TRIS, ASCE
• Created Date: May 14 2024 4:30PM