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Dropwise condensation freezing and frosting on bituminous surfaces at subzero temperatures
- Source :
- Construction and Building Materials, 298
- Publication Year :
- 2021
- Publisher :
- Elsevier, 2021.
-
Abstract
- Freezing of atmospheric water on bituminous construction and road surfaces is a recurring event during winter. However, droplet freezing on bitumen and passive inhibition methods are poorly understood. Here we investigate relative humidity and substrate cooling effects on condensation freezing on subzero temperature bituminous surfaces and find that droplet freezing is explosive, with rapid local heating. We explain the related physics and find that relative humidity and cooling rate can affect droplet sizes and freezing temperatures. We then rationally embed phase change material microcapsules in bitumen, harnessing their latent heat to significantly delay freezing, demonstrating a viable option for frost mitigation. ISSN:0950-0618
- Subjects :
- Explosive material
Condensation
0211 other engineering and technologies
food and beverages
020101 civil engineering
02 engineering and technology
Building and Construction
7. Clean energy
Phase-change material
eye diseases
0201 civil engineering
Bitumen
Phase change materials
Condensation freezing
Icephobicity
Icing
Frosting
Modified winter asphalt binder
Freezing delay
13. Climate action
Asphalt
Latent heat
021105 building & construction
General Materials Science
Relative humidity
Frost (temperature)
Dropwise condensation
Composite material
Civil and Structural Engineering
Subjects
Details
- Language :
- English
- ISSN :
- 09500618
- Database :
- OpenAIRE
- Journal :
- Construction and Building Materials, 298
- Accession number :
- edsair.doi.dedup.....ad0135ad020e50fc91d95cd5062583db