Performance Evaluation of Colored Pavements Using Pigmented Clear Binders

This study investigates the performance of colored pavements made using pigmented clear binders. The pigments served as partial replacements for conventional mineral fillers in flexible pavement compositions. Results revealed that colored mixes, while exhibiting reduced stability compared to traditional asphalt concrete, showed superior moisture resistance and enhanced fracture energy. In addition, colored mixtures demonstrated approximately double the flexibility index of the control asphalt mix, indicating an improved fatigue resistance. Permanent deformation resistance of the colored mix was slightly compromised but remained within acceptable limits. Reflectance testing showed that the yellow mix reflected 100% more sunlight than the asphalt mix, and 43% more than the red mix. Skid resistance testing confirmed that all mixes met wet condition safety thresholds (BPN > 45), with the asphalt mix showing only slightly higher values. Overall, the results confirm that colored mixtures with clear binders could achieve desirable aesthetics and also deliver enhanced flexibility (to resist facture and fatigue), moisture resistance, and reflectivity. This makes them a viable alternative for highly reflective and decorative pavement applications with enhanced visibility.