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June 12, 2026InfrastructuresOpen Access

Performance Evaluation of High-RAP Asphalt Mixtures Incorporating Rejuvenators, Regenerators, and Softer Binders

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Authors

DLDavid López-GarcíaCACarlos Alonso-TroyanoDLDavid Llopis-Castelló

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Overview

Randomized trial evaluates mechanical performance of high-RAP asphalt mixtures, highlighting effective strategies for binder correction.

Key Points

  • This research aims to assess strategies for addressing binder aging in asphalt mixtures with high reclaimed asphalt pavement content.
  • Evaluated four asphalt mixtures containing 50% RAP through mechanical performance tests.
  • Tested air void content, water sensitivity, resistance to permanent deformation, and stiffness modulus according to European standards.
  • Compared mixtures with a rejuvenator, regenerator, and softer virgin bitumen against a reference mixture.
  • The reference mixture without binder correction showed excessive stiffness.
  • The rejuvenator mixture achieved the best mechanical indicators with reduced stiffness modulus and high water resistance.
  • The regenerator mixture had moderate performance, while the softer bitumen mixture did not perform satisfactorily overall.

Cite This Study

López-García et al. (2026) studied this question.

synapsesocial.com/papers/6a2ba4a18101cf8926f02fd8https://doi.org/10.3390/infrastructures11060198
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