Potentials of Mitigating Pavement Frost Heave with Fungi
Publication: Geo-Congress 2024
ABSTRACT
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.
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Information & Authors
Information
Published In
Geo-Congress 2024
Pages: 704 - 713
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- Business management
- Cold regions engineering
- Engineering fundamentals
- Environmental engineering
- Finite element method
- Foundations
- Frost
- Frost heave
- Geotechnical engineering
- Infrastructure
- Innovation
- Material mechanics
- Materials engineering
- Methodology (by type)
- Microbes
- Mitigation and remediation
- Numerical methods
- Organisms
- Pavements
- Practice and Profession
- Strain
- Transportation engineering
Authors
Metrics & Citations
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