Theoretical analysis of waste cooking oil rejuvenator in reclaimed asphalt for sustainable hot asphalt mix preparation at the Área Metropolitana de Bucaramanga

Reusing reclaimed asphalt pavements (RAPs) provides economic, social, and environmental benefits. To improve the performance of these materials, rejuvenating agents such as waste cooking oil (WCO) have been implemented. The annual amounts RAP WCO available in Área Metropolitana de Bucaramanga (AMB) were calculated to be 32 thousand 22 tons per year, respectively. Subsequently, international standards reviewed compared with Colombian regulations establish a methodology determine appropriate percentage add for hot mix preparation. authors suggest investigating levels from 3% 6% selecting that reestablishes penetration grade (INV-E-706-13), softening point (INV-E-712-13), viscosity (INV-E-717 -13) binder. For preparation, propose using Marshall method determining according stability flow tests (INV-E-748-13), percent air voids (INV-E-736-13), bulk density (INV-E-733-13).3).