A Review of the Role of Nanomaterials in Asphalt Performance Enhancement
Modified asphalt mixtures are increasingly used in high trafficked flexible pavement to improve performance and durability. Many laboratory studies have been conducted to compare the effectiveness of these mixtures with traditional HMA (hot mix asphalt). In mixes for asphalt concrete paving, nano...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Salahaddin University-Erbil
2025-06-01
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| Series: | Zanco Journal of Pure and Applied Sciences |
| Subjects: | |
| Online Access: | https://zancojournal.su.edu.krd/index.php/JPAS/article/view/2972 |
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| Summary: | Modified asphalt mixtures are increasingly used in high trafficked flexible pavement to improve performance and durability. Many laboratory studies have been conducted to compare the effectiveness of these mixtures with traditional HMA (hot mix asphalt). In mixes for asphalt concrete paving, nano modifiers are typically recommended when increased performance and durability are required, common nano modifiers used in asphalt mixtures, including: CNTs (carbon nanotubes), NC (nano clay), and NS (nano silica). This study reviews these nanomaterials used in asphalt modification, describes the techniques used to modify the asphalt binder using these materials, presents the influences of these nano modifiers on the asphalt pavement concrete mixtures’ overall performance based on information from past literatures to assess their effects on properties as rutting resistance and moisture susceptibility as well as discusses challenges and advantages of nanomaterials in asphalt modification. The outcomes demonstrate that the utilizing nano modifiers in hot mix asphalt mixtures reduce the rutting depth by 4% to 88%. Additionally, nanomaterials enhance moisture sensitivity and increase tensile strength ratio by 9% to 25%.
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| ISSN: | 2218-0230 2412-3986 |