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April 15, 2026Scientific ReportsOpen Access

A comparative evaluation of sustainable asphalt binder modifiers for enhanced performance

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Authors

MSMaram SaudyMGMinas GuirguisSESherif Samir A. Elbadawy

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Overview

Comparative evaluation shows sustainable asphalt modifiers enhance performance, suggesting eco-friendly solutions for pavement.

Key Points

  • This research aims to evaluate and compare various sustainable asphalt binder modifiers for improved performance and durability.
  • Developed a multi-scale experimental framework to test different binder modifiers under standardized conditions.
  • Assessed five sustainable modifiers: crumb rubber, low-density polyethylene, hybrid CR/LDPE, fly ash, and metakaolin–silica fume geopolymers.
  • Conducted comprehensive evaluations including microstructural, chemical, thermal, and rheological analyses.
  • Geopolymer modifiers showed consistent improvements in aging resistance and stability, with performance grade enhancements of 2–4 °C.
  • Crumb rubber provided balanced performance with moderate enhancements and better aging resistance.
  • LDPE and VIATOP offered the highest performance grade increases but displayed poorer long-term durability.

Cite This Study

Saudy et al. (2026) studied this question.

synapsesocial.com/papers/69df2bece4eeef8a2a6b0d25https://doi.org/10.1038/s41598-026-46495-w
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