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Frost Action on Concrete01:27

Frost Action on Concrete

134
Concrete structures in cold climates, such as those along roadsides, can retain moisture. This moisture makes them susceptible to frost-related damage when temperatures fall below freezing. Adding moisture worsens the damage during temperature fluctuations, leading to repeated freezing and thawing. De-icing salts, spread over these structures to melt ice, add to the freeze-thaw cycle, and draw even more moisture into the concrete.
This freeze-thaw cycle primarily causes surface scaling, where...
134

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Related Experiment Video

Updated: Aug 26, 2025

Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications
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Robust Anti-Icing Surfaces Based on Dual Functionality─Microstructurally-Induced Ice Shedding with Superimposed

Michael J Wood1, Gregory Brock1, Juliette Debray1

  • 1Department of Chemical Engineering, McGill University, Montréal, Québec H3A 0C5, Canada.

ACS Applied Materials & Interfaces
|October 4, 2022
PubMed
Summary

Penguin feathers inspire new anti-icing surfaces. Mimicking their structure separates water and ice adhesion, creating effective ice-shedding and water-shedding functions for robust anti-icing applications.

Keywords:
LIPSSanti-icingbiomimicryice-adhesionice-sheddinglaser micromachiningsuperhydrophobicwater-shedding

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Area of Science:

  • Materials Science
  • Surface Engineering
  • Tribology

Background:

  • Anti-icing surface research often combines water and ice adhesion.
  • Penguin feathers offer a natural model for distinct anti-icing strategies.

Purpose of the Study:

  • To mimic penguin feather structures for advanced anti-icing surfaces.
  • To differentiate and optimize water and ice shedding functionalities.

Main Methods:

  • Laser micromachining of woven wire cloths to create hierarchical nanostructures.
  • Surface chemistry modification (hydrophilic/hydrophobic) to isolate functional roles.

Main Results:

  • Hierarchical structures effectively decouple water and ice adhesion.
  • Microstructure facilitates interfacial cracking, reducing ice adhesion.
  • Nanogrooves and hydrophobic chemistry promote water shedding.

Conclusions:

  • Designing ice-shedding via fracture mechanics is key for robust anti-icing.
  • Separate optimization of water-shedding functions enhances overall performance.