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September 10, 2025Open Access

Thermo-Rheological Characterization and Performance Evaluation of Sustainable TiO2-Modified Hot Mix Asphalt (HMA) Formulations for Urban Pavement Infrastructure

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This research shows how TiO2 modification enhances solar reflectance and mechanical performance in hot mix asphalt, addressing urban heat islands.

TiO2 incorporation improved solar reflectance by 45.5%, reducing surface temperatures by up to 8°C.
The study assessed physicochemical properties, finding that moisture resistance matched conventional asphalt in tests.
Results indicate that TiO2-modified asphalt exhibits robust mechanical properties alongside effective temperature regulation.
These findings suggest TiO2-modified asphalt can address UHI effects while maintaining performance standards.

Cabrera et al. (2025) studied this question.

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This research shows how TiO2 modification enhances solar reflectance and mechanical performance in hot mix asphalt, addressing urban heat islands.