Investigating Asphalt Self-Healing with Colorless Binder and Pigmented Rejuvenator

Despite asphalt self-healing with encapsulated rejuvenators having been intensively researched over the last decade, there is still uncertainty about performance advantages granted by this technology. As a way of adding to existing set research methodologies, study aimed test feasibility visual method investigate working mechanism in bituminous mixture. For purpose, clear mixtures were produced using colorless synthetic binder and pigment was added rejuvenator incorporated calcium alginate capsules. The internal structure containing these capsules inspected both on loaded unloaded specimens. colored also directly cracked specimens its distribution studied, along interaction between binder. results show that could modify limited extent, showed evidence release. It demonstrated aggregate gradation has significant effect capsule damage However, can be filtrated from polymer asphalt. Even though methodology presented some constraints, it proven capable achieving initial goal, while acting as an important first step release