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October 1, 2025Open Access

Microstructural Evaluation and Void Topology Analysis of Cold Asphalt Mixtures Containing Recycled Concrete and Reclaimed Asphalt Pavement

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Authors

HMHisham MohamadHJHassan H. JoniTSTahseen D. Saadoon

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Overview

Analysis shows improved microstructural performance in cold asphalt mixtures containing recycled concrete and asphalt, indicating potential for sustainable paving solutions.

Key Points

  • Mixes with recycled materials demonstrated enhanced microstructural performance, particularly when using reclaimed asphalt pavement.
  • Marshall tests indicated that mechanical behaviour varied with different aggregate replacement ratios of recycled concrete and asphalt.
  • Computed tomography imaging revealed significant changes in pore topology, especially in control and specific replacement mixes.
  • Scanning electron microscopy highlighted differences in the aggregate-bitumen bond characteristics based on the type of aggregate used.

Cite This Study

Mohamad et al. (2025) studied this question.

synapsesocial.com/papers/68dd91d5fe798ba2fc498ecdhttps://doi.org/10.1088/1755-1315/1541/1/012007
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