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Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material

In this paper, phase-change material (PCM) and ceramsite were used to increase the heat resistance of the asphalt mixture. The ceramsite asphalt mixture with PCM can bring a specific cooling effect to the road surface and alleviate the rapid deterioration at high temperature. Two phase-change materi...

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Autores principales: Yuan, Jun, He, Peidong, Li, Haiyang, Xu, Xuesong, Sun, Weiwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9457522/
https://www.ncbi.nlm.nih.gov/pubmed/36079401
http://dx.doi.org/10.3390/ma15176021
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author Yuan, Jun
He, Peidong
Li, Haiyang
Xu, Xuesong
Sun, Weiwei
author_facet Yuan, Jun
He, Peidong
Li, Haiyang
Xu, Xuesong
Sun, Weiwei
author_sort Yuan, Jun
collection PubMed
description In this paper, phase-change material (PCM) and ceramsite were used to increase the heat resistance of the asphalt mixture. The ceramsite asphalt mixture with PCM can bring a specific cooling effect to the road surface and alleviate the rapid deterioration at high temperature. Two phase-change materials, PCM-43 and PCM-48, were compared and selected as the heat absorption material of the asphalt mixture. It is found that PCM-43 has better thermal stability, temperature regulation performance, higher enthalpy value, and a less adverse effect on the rheological properties of asphalt. According to the road performance of the asphalt mixture, it suggests that the maximum content of ceramsite is 40%. The specific heat capacity of asphalt mixtures was studied by the method of the insulation bucket test, and the thermal conductivity coefficient of asphalt mixtures was tested by a thermal conductivity instrument. The results show that the specific heat capacity and thermal conductivity of the asphalt mixture can be reduced by adding PCM and ceramsite. The effect of ceramsite asphalt concrete with PCM on the temperature field of road structure was further analyzed by finite element method. Due to the thermal resistance of ceramsite in the upper layer, the cooling range and depth in the middle and lower surface layers can be improved. Meanwhile, the heat absorption of phase-change material can alleviate the heating phenomenon of the upper layer. Therefore, ceramsite asphalt concrete with PCM is effective for decreasing the high temperatures in the asphalt pavements.
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spelling pubmed-94575222022-09-09 Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material Yuan, Jun He, Peidong Li, Haiyang Xu, Xuesong Sun, Weiwei Materials (Basel) Article In this paper, phase-change material (PCM) and ceramsite were used to increase the heat resistance of the asphalt mixture. The ceramsite asphalt mixture with PCM can bring a specific cooling effect to the road surface and alleviate the rapid deterioration at high temperature. Two phase-change materials, PCM-43 and PCM-48, were compared and selected as the heat absorption material of the asphalt mixture. It is found that PCM-43 has better thermal stability, temperature regulation performance, higher enthalpy value, and a less adverse effect on the rheological properties of asphalt. According to the road performance of the asphalt mixture, it suggests that the maximum content of ceramsite is 40%. The specific heat capacity of asphalt mixtures was studied by the method of the insulation bucket test, and the thermal conductivity coefficient of asphalt mixtures was tested by a thermal conductivity instrument. The results show that the specific heat capacity and thermal conductivity of the asphalt mixture can be reduced by adding PCM and ceramsite. The effect of ceramsite asphalt concrete with PCM on the temperature field of road structure was further analyzed by finite element method. Due to the thermal resistance of ceramsite in the upper layer, the cooling range and depth in the middle and lower surface layers can be improved. Meanwhile, the heat absorption of phase-change material can alleviate the heating phenomenon of the upper layer. Therefore, ceramsite asphalt concrete with PCM is effective for decreasing the high temperatures in the asphalt pavements. MDPI 2022-08-31 /pmc/articles/PMC9457522/ /pubmed/36079401 http://dx.doi.org/10.3390/ma15176021 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yuan, Jun
He, Peidong
Li, Haiyang
Xu, Xuesong
Sun, Weiwei
Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material
title Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material
title_full Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material
title_fullStr Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material
title_full_unstemmed Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material
title_short Preparation and Performance Analysis of Ceramsite Asphalt Mixture with Phase-Change Material
title_sort preparation and performance analysis of ceramsite asphalt mixture with phase-change material
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9457522/
https://www.ncbi.nlm.nih.gov/pubmed/36079401
http://dx.doi.org/10.3390/ma15176021
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AT xuxuesong preparationandperformanceanalysisofceramsiteasphaltmixturewithphasechangematerial
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