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<p>The integration of nanomaterials in bituminous binders and asphalt mixtures has emerged as a promising strategy to improve pavement performance, yet the field remains fragmented with limited systematic evaluation of research trends and knowledge development. This study presents a comprehensive bibliometric analysis of 1208 peer-reviewed articles published between 2010 and 2024, retrieved from the Web of Science database, to explore the intellectual structure and evolution of research on nano-modification of bitumen. Using CiteSpace and VOSviewer, we performed co-authorship, co-citation, keyword co-occurrence, and cluster analyses to identify influential contributors, thematic clusters, and emerging research frontiers. The analysis revealed that research has concentrated around key themes such as multiscale interfacial interaction, carbon nanotube reinforcement, and nano-modified asphalt binders. However, critical gaps remain, including the need for long-term field validation, standardized testing frameworks, and evaluations of environmental and economic impacts. The findings demonstrate how bibliometric mapping can uncover underexplored domains and guide future studies towards high-impact areas. This study not only provides a macroscopic overview of research trends but also identifies pressing research needs, offering valuable direction for academics, material scientists, and infrastructure policymakers aiming to enhance sustainable pavement engineering through nanotechnology.</p>

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A bibliometric review on nano-materials in bituminous binders and mixes: research trends and knowledge gaps

  • 期刊论文

  • 发表日期：

    2026年3月3日

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  • Towseef Ahmed Gilani,
  • Faheem Sadiq Bhat,
  • Mohammad Idrees Gilani,
  • Mohamad Shafi Mir,
  • Peerzada Danish,
  • Jasir Mushtaq,
  • Iftekar Gull,
  • Asif Akbar

摘要

The integration of nanomaterials in bituminous binders and asphalt mixtures has emerged as a promising strategy to improve pavement performance, yet the field remains fragmented with limited systematic evaluation of research trends and knowledge development. This study presents a comprehensive bibliometric analysis of 1208 peer-reviewed articles published between 2010 and 2024, retrieved from the Web of Science database, to explore the intellectual structure and evolution of research on nano-modification of bitumen. Using CiteSpace and VOSviewer, we performed co-authorship, co-citation, keyword co-occurrence, and cluster analyses to identify influential contributors, thematic clusters, and emerging research frontiers. The analysis revealed that research has concentrated around key themes such as multiscale interfacial interaction, carbon nanotube reinforcement, and nano-modified asphalt binders. However, critical gaps remain, including the need for long-term field validation, standardized testing frameworks, and evaluations of environmental and economic impacts. The findings demonstrate how bibliometric mapping can uncover underexplored domains and guide future studies towards high-impact areas. This study not only provides a macroscopic overview of research trends but also identifies pressing research needs, offering valuable direction for academics, material scientists, and infrastructure policymakers aiming to enhance sustainable pavement engineering through nanotechnology.