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The performance of stone mastic asphalt (SMA) mixtures is highly dependent on the type of binder used, particularly in resisting rutting, cracking, and moisture damage under diverse environmental and loading conditions. This comprehensive review synthesizes findings from peer-reviewed studies (2007–2024) to evaluate the effects of various binder modifications including polymers, crumb rubber, nanomaterials, and recycled waste on the mechanical behavior of SMA mixtures. Through meta-analysis of test data such as Hamburg wheel tracking, dynamic creep, indirect tensile strength, and fatigue-based evaluations, the study highlights the superior performance of CRMB-80 and SBS-modified binders in enhancing rutting and cracking resistance, respectively. Nano-additives (e.g., SiO₂, Fe₂O₃, and CaCO₃) improved stiffness and durability but required optimized dosages to prevent brittleness. Hybrid modifications such as SBS with nanoclay demonstrated synergistic improvements across performance domains. Recycled materials like PET and PVC offered environmental and structural benefits when appropriately dosed and sourced. Overall, the study underscores the potential of tailored binder modifications in developing durable, high-performance SMA pavements and calls for further long-term field validation and life-cycle assessments.

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Evaluating Stone Mastic Asphalt Performance: A Review of Influence of Binder Type on Rutting, Cracking, and Moisture Resistance

  • 会议论文

  • 发表日期：

    2026年

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  • Vaibhav Lokhande,
  • Kailas Patil,
  • Sadiya Shaikh,
  • Ankit Gupta

摘要

The performance of stone mastic asphalt (SMA) mixtures is highly dependent on the type of binder used, particularly in resisting rutting, cracking, and moisture damage under diverse environmental and loading conditions. This comprehensive review synthesizes findings from peer-reviewed studies (2007–2024) to evaluate the effects of various binder modifications including polymers, crumb rubber, nanomaterials, and recycled waste on the mechanical behavior of SMA mixtures. Through meta-analysis of test data such as Hamburg wheel tracking, dynamic creep, indirect tensile strength, and fatigue-based evaluations, the study highlights the superior performance of CRMB-80 and SBS-modified binders in enhancing rutting and cracking resistance, respectively. Nano-additives (e.g., SiO₂, Fe₂O₃, and CaCO₃) improved stiffness and durability but required optimized dosages to prevent brittleness. Hybrid modifications such as SBS with nanoclay demonstrated synergistic improvements across performance domains. Recycled materials like PET and PVC offered environmental and structural benefits when appropriately dosed and sourced. Overall, the study underscores the potential of tailored binder modifications in developing durable, high-performance SMA pavements and calls for further long-term field validation and life-cycle assessments.