Thermal properties of asphalt pavements under dry and wet conditions
Air voids play an important role in the temperature evolution of asphalt pavements exposed to the sun's radiation and the environment, but their effects have never been precisely quantified before. The objective of this article is to understand and quantify the effect of air voids on the temper...
| Main Authors: | , , , |
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/35660/ |
| _version_ | 1848795131438694400 |
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| author | Hassn, Abdushaffi Chiarelli, Andrea Dawson, Andrew Garcia, Alvaro |
| author_facet | Hassn, Abdushaffi Chiarelli, Andrea Dawson, Andrew Garcia, Alvaro |
| author_sort | Hassn, Abdushaffi |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Air voids play an important role in the temperature evolution of asphalt pavements exposed to the sun's radiation and the environment, but their effects have never been precisely quantified before. The objective of this article is to understand and quantify the effect of air voids on the temperature evolution of asphalt mixture under dry and wet conditions. To achieve this objective, dry and saturated asphalt slabs with different air voids contents have been exposed to infrared light and the surface and bottom temperature evolution, heat flux and evaporation rate have been measured. It was observed that under dry conditions air voids simply affect the specific heat capacity and thermal conductivity of asphalt mixture, while under wet conditions the energy used by water for evaporation reduces drastically the temperature of asphalt mixture. This has significance for Urban Heat Island mitigation amongst other implications. |
| first_indexed | 2025-11-14T19:27:13Z |
| format | Article |
| id | nottingham-35660 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:27:13Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-356602020-05-04T17:37:52Z https://eprints.nottingham.ac.uk/35660/ Thermal properties of asphalt pavements under dry and wet conditions Hassn, Abdushaffi Chiarelli, Andrea Dawson, Andrew Garcia, Alvaro Air voids play an important role in the temperature evolution of asphalt pavements exposed to the sun's radiation and the environment, but their effects have never been precisely quantified before. The objective of this article is to understand and quantify the effect of air voids on the temperature evolution of asphalt mixture under dry and wet conditions. To achieve this objective, dry and saturated asphalt slabs with different air voids contents have been exposed to infrared light and the surface and bottom temperature evolution, heat flux and evaporation rate have been measured. It was observed that under dry conditions air voids simply affect the specific heat capacity and thermal conductivity of asphalt mixture, while under wet conditions the energy used by water for evaporation reduces drastically the temperature of asphalt mixture. This has significance for Urban Heat Island mitigation amongst other implications. Elsevier 2016-02-05 Article PeerReviewed Hassn, Abdushaffi, Chiarelli, Andrea, Dawson, Andrew and Garcia, Alvaro (2016) Thermal properties of asphalt pavements under dry and wet conditions. Materials & Design, 91 . pp. 432-439. ISSN 0264-1275 http://www.sciencedirect.com/science/article/pii/S0264127515308546 doi:10.1016/j.matdes.2015.11.116 doi:10.1016/j.matdes.2015.11.116 |
| spellingShingle | Hassn, Abdushaffi Chiarelli, Andrea Dawson, Andrew Garcia, Alvaro Thermal properties of asphalt pavements under dry and wet conditions |
| title | Thermal properties of asphalt pavements under dry and wet conditions |
| title_full | Thermal properties of asphalt pavements under dry and wet conditions |
| title_fullStr | Thermal properties of asphalt pavements under dry and wet conditions |
| title_full_unstemmed | Thermal properties of asphalt pavements under dry and wet conditions |
| title_short | Thermal properties of asphalt pavements under dry and wet conditions |
| title_sort | thermal properties of asphalt pavements under dry and wet conditions |
| url | https://eprints.nottingham.ac.uk/35660/ https://eprints.nottingham.ac.uk/35660/ https://eprints.nottingham.ac.uk/35660/ |