Assessing the Use of Phase Change Materials to Control Temperature in Asphalt Pavements

Tharanga Kumara Dissanayaka Mudiyanselage, Sanjaya Senadheera

Research output: Contribution to conferencePaperpeer-review

Abstract

The high temperature in asphalt concrete pavement surfaces contribute to the Urban Heat Island (UHI) effect and it also shortens the pavement service life due to the rutting distress. Lowering the extreme high summer pavement temperature results in significant improvements on both these fronts. Utilizing the latent heat from phase change materials (PCM) can be an effective way to reduce high summer temperatures in pavements resulting in reduced discomfort for humans in urban areas during hot summers and enhanced pavement performance. This paper presents findings from the first stage of a two-stage research effort. The authors present results from a study on the use of encapsulated micron-scale PCM to reduce high pavement temperatures in asphalt binder mastics. Both the material preparation temperature and the PCM content were used as experimental factors in the study that evaluated rheological characteristics and thermal performance of the mastics. The PCM showed promise in delaying t
Original languageEnglish
StatePublished - Feb 2018

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