Advancements of carbon nanomaterials-modified asphalt: Processes, properties, economic feasibility and future perspectives
Hot mix asphalt is the cornerstone of road design serving the basis of road networks in the transportation infrastructure of a country. Traditional formulations of hot mix asphalt suffer from inherent limitations such as susceptibility to rutting and cracking due to severity of temperature changes....
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| Format: | Article |
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KeAi Communications Co., Ltd.
2025-08-01
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| Series: | Journal of Traffic and Transportation Engineering (English ed. Online) |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095756425001096 |
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| author | Sherif Araby Ayman Abdulhamid Umut Bakhbergen Jong Kim El-Sayed Abd-Elaal |
| author_facet | Sherif Araby Ayman Abdulhamid Umut Bakhbergen Jong Kim El-Sayed Abd-Elaal |
| author_sort | Sherif Araby |
| collection | DOAJ |
| description | Hot mix asphalt is the cornerstone of road design serving the basis of road networks in the transportation infrastructure of a country. Traditional formulations of hot mix asphalt suffer from inherent limitations such as susceptibility to rutting and cracking due to severity of temperature changes. Carbon nanomaterials (CNMs) feature superb properties such as mechanical strength, and thermal and electrical conductivity. Recently, adding CNMs into hot mix asphalt, as an alternative to conventional additives, proved to be effective in enhancing overall performance of asphalt concrete; for example, it enhances its Marshall stability, rutting resistance and low-temperature crack resistance leading to roads with high longevity and sustainability. In addition, CNMs can offer new functional properties into asphalt mixtures such as self-healing, and thermal and electrical conductivity. This review presents the recent advances in integrating CNMs, specifically graphene and carbon nanotubes (CNTs), into asphalt mixtures. Features of nanomaterials such as specific surface area, geometry, and their effect on the properties of hot mix asphalt are comprehensively discussed. The review also explores the processing and characterization methods for CNMs-modified asphalt binder and their impact on the mixture workability and rheological performance. Furthermore, the article elaborates the structure-property relations of CNMs-modified asphalt mixtures at the macroscale (mechanical properties), microscale (morphology and microstructure) and atomic scale (molecular dynamic simulations). Functional properties of CNMs-modified asphalt were also discussed. More importantly, the authors provided a roadmap and mathematical model to assess the economic feasibility and sustainability of incorporating CNMs into the asphalt industry. At the end, potential and research directions in adding CNMs into asphalt industry are outlined. |
| format | Article |
| id | doaj-art-080dae7def6946b39c2f4d2cd7fd9eef |
| institution | Kabale University |
| issn | 2095-7564 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Traffic and Transportation Engineering (English ed. Online) |
| spelling | doaj-art-080dae7def6946b39c2f4d2cd7fd9eef2025-08-20T04:02:23ZengKeAi Communications Co., Ltd.Journal of Traffic and Transportation Engineering (English ed. Online)2095-75642025-08-01124965101010.1016/j.jtte.2024.10.002Advancements of carbon nanomaterials-modified asphalt: Processes, properties, economic feasibility and future perspectivesSherif Araby0Ayman Abdulhamid1Umut Bakhbergen2Jong Kim3El-Sayed Abd-Elaal4School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, Kazakhstan; Corresponding author.Department of Civil Engineering, Benha Faculty of Engineering, Benha University, Benha 13511, Egypt; Corresponding author.School of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, KazakhstanSchool of Engineering and Digital Sciences, Nazarbayev University, Astana 010000, KazakhstanUniSA STEM, University of South Australia, Adelaide, AustraliaHot mix asphalt is the cornerstone of road design serving the basis of road networks in the transportation infrastructure of a country. Traditional formulations of hot mix asphalt suffer from inherent limitations such as susceptibility to rutting and cracking due to severity of temperature changes. Carbon nanomaterials (CNMs) feature superb properties such as mechanical strength, and thermal and electrical conductivity. Recently, adding CNMs into hot mix asphalt, as an alternative to conventional additives, proved to be effective in enhancing overall performance of asphalt concrete; for example, it enhances its Marshall stability, rutting resistance and low-temperature crack resistance leading to roads with high longevity and sustainability. In addition, CNMs can offer new functional properties into asphalt mixtures such as self-healing, and thermal and electrical conductivity. This review presents the recent advances in integrating CNMs, specifically graphene and carbon nanotubes (CNTs), into asphalt mixtures. Features of nanomaterials such as specific surface area, geometry, and their effect on the properties of hot mix asphalt are comprehensively discussed. The review also explores the processing and characterization methods for CNMs-modified asphalt binder and their impact on the mixture workability and rheological performance. Furthermore, the article elaborates the structure-property relations of CNMs-modified asphalt mixtures at the macroscale (mechanical properties), microscale (morphology and microstructure) and atomic scale (molecular dynamic simulations). Functional properties of CNMs-modified asphalt were also discussed. More importantly, the authors provided a roadmap and mathematical model to assess the economic feasibility and sustainability of incorporating CNMs into the asphalt industry. At the end, potential and research directions in adding CNMs into asphalt industry are outlined.http://www.sciencedirect.com/science/article/pii/S2095756425001096Hot mix asphaltRuttingThermal conductivityMolecular dynamicsCarbon nanomaterialsEconomic feasibility |
| spellingShingle | Sherif Araby Ayman Abdulhamid Umut Bakhbergen Jong Kim El-Sayed Abd-Elaal Advancements of carbon nanomaterials-modified asphalt: Processes, properties, economic feasibility and future perspectives Journal of Traffic and Transportation Engineering (English ed. Online) Hot mix asphalt Rutting Thermal conductivity Molecular dynamics Carbon nanomaterials Economic feasibility |
| title | Advancements of carbon nanomaterials-modified asphalt: Processes, properties, economic feasibility and future perspectives |
| title_full | Advancements of carbon nanomaterials-modified asphalt: Processes, properties, economic feasibility and future perspectives |
| title_fullStr | Advancements of carbon nanomaterials-modified asphalt: Processes, properties, economic feasibility and future perspectives |
| title_full_unstemmed | Advancements of carbon nanomaterials-modified asphalt: Processes, properties, economic feasibility and future perspectives |
| title_short | Advancements of carbon nanomaterials-modified asphalt: Processes, properties, economic feasibility and future perspectives |
| title_sort | advancements of carbon nanomaterials modified asphalt processes properties economic feasibility and future perspectives |
| topic | Hot mix asphalt Rutting Thermal conductivity Molecular dynamics Carbon nanomaterials Economic feasibility |
| url | http://www.sciencedirect.com/science/article/pii/S2095756425001096 |
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