Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping Review
Railway track performance and durability face growing challenges from higher speeds, heavier axle loads, and changing environmental conditions. Crumb rubber-modified asphalt (CRMA) offers a sustainable solution by repurposing waste tires into a durable material for railway trackbeds, improving both...
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MDPI AG
2025-04-01
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| Series: | Infrastructures |
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| Online Access: | https://www.mdpi.com/2412-3811/10/4/84 |
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| author | Milad Kazemian Ebrahim Hadizadeh Raeisi Ahmad Davari Ghezelhesar Amir Hajimirzajan Szabolcs Fischer |
| author_facet | Milad Kazemian Ebrahim Hadizadeh Raeisi Ahmad Davari Ghezelhesar Amir Hajimirzajan Szabolcs Fischer |
| author_sort | Milad Kazemian |
| collection | DOAJ |
| description | Railway track performance and durability face growing challenges from higher speeds, heavier axle loads, and changing environmental conditions. Crumb rubber-modified asphalt (CRMA) offers a sustainable solution by repurposing waste tires into a durable material for railway trackbeds, improving both performance and environmental impact. Following PRISMA-ScR guidelines, this scoping review synthesizes an extensive body of global research on the structural, mechanical, and environmental benefits of CRMA in railway trackbeds. A systematic literature search was conducted across major academic databases, covering studies published over several decades. Selection criteria focused on CRMA applications in railway trackbeds, using keywords such as “crumb rubber-modified asphalt”, “railway track vibration”, and “sustainable railway materials.” After rigorous screening and eligibility assessment, the most relevant peer-reviewed studies were included, emphasizing mechanical performance, durability, and environmental impact. Key findings indicate that CRMA effectively reduces ground vibrations, enhances load distribution, and lowers long-term maintenance costs while promoting sustainable waste management through tire recycling. However, challenges such as optimal mix design, potential emissions, and long-term bonding stability require further investigation. Additionally, the review was limited to English-language studies, potentially omitting relevant non-English research, and some reports were inaccessible during retrieval. This review maps critical research gaps, identifies key areas for future optimization, and highlights CRMA’s potential to advance resilient and eco-friendly railway infrastructure. |
| format | Article |
| id | doaj-art-cf1e81996fe741e48163552da020f50f |
| institution | DOAJ |
| issn | 2412-3811 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Infrastructures |
| spelling | doaj-art-cf1e81996fe741e48163552da020f50f2025-08-20T03:13:32ZengMDPI AGInfrastructures2412-38112025-04-011048410.3390/infrastructures10040084Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping ReviewMilad Kazemian0Ebrahim Hadizadeh Raeisi1Ahmad Davari Ghezelhesar2Amir Hajimirzajan3Szabolcs Fischer4Department of Transport Infrastructure and Water Resources Engineering, Széchenyi István University, Egyetem tér 1, 9026 Győr, HungaryDepartment of Civil Engineering, Azad University of Amol, Babol Street, University Alley, Amol 4615143358, IranDepartment of Science and Technology, Khorramshahr University of Marine, Ibne Abitaleb Blvd, Daneshgah Street, Khorramshahr 6419934619, IranDepartment of Industrial Engineering, Yazd University, Daneshgah Blvd, Safaieh Street, Yazd 8915818411, IranDepartment of Transport Infrastructure and Water Resources Engineering, Széchenyi István University, Egyetem tér 1, 9026 Győr, HungaryRailway track performance and durability face growing challenges from higher speeds, heavier axle loads, and changing environmental conditions. Crumb rubber-modified asphalt (CRMA) offers a sustainable solution by repurposing waste tires into a durable material for railway trackbeds, improving both performance and environmental impact. Following PRISMA-ScR guidelines, this scoping review synthesizes an extensive body of global research on the structural, mechanical, and environmental benefits of CRMA in railway trackbeds. A systematic literature search was conducted across major academic databases, covering studies published over several decades. Selection criteria focused on CRMA applications in railway trackbeds, using keywords such as “crumb rubber-modified asphalt”, “railway track vibration”, and “sustainable railway materials.” After rigorous screening and eligibility assessment, the most relevant peer-reviewed studies were included, emphasizing mechanical performance, durability, and environmental impact. Key findings indicate that CRMA effectively reduces ground vibrations, enhances load distribution, and lowers long-term maintenance costs while promoting sustainable waste management through tire recycling. However, challenges such as optimal mix design, potential emissions, and long-term bonding stability require further investigation. Additionally, the review was limited to English-language studies, potentially omitting relevant non-English research, and some reports were inaccessible during retrieval. This review maps critical research gaps, identifies key areas for future optimization, and highlights CRMA’s potential to advance resilient and eco-friendly railway infrastructure.https://www.mdpi.com/2412-3811/10/4/84crumb rubber-modified asphaltrailway trackbedssustainable railway infrastructurerailway track vibrationenvironmental impactfatigue resistance |
| spellingShingle | Milad Kazemian Ebrahim Hadizadeh Raeisi Ahmad Davari Ghezelhesar Amir Hajimirzajan Szabolcs Fischer Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping Review Infrastructures crumb rubber-modified asphalt railway trackbeds sustainable railway infrastructure railway track vibration environmental impact fatigue resistance |
| title | Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping Review |
| title_full | Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping Review |
| title_fullStr | Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping Review |
| title_full_unstemmed | Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping Review |
| title_short | Effects of Crumb Rubber-Modified Asphalt as a Pavement Layer in Railways: A Scoping Review |
| title_sort | effects of crumb rubber modified asphalt as a pavement layer in railways a scoping review |
| topic | crumb rubber-modified asphalt railway trackbeds sustainable railway infrastructure railway track vibration environmental impact fatigue resistance |
| url | https://www.mdpi.com/2412-3811/10/4/84 |
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