Performance Evaluation of Asphalt Mixtures with Bitumen Partially Replaced With Waste Cooking Oil and Crumb Rubber

Abstract

Crumb Rubber Modified Asphalt( CRMA) has numerous benefits similar as increased rutting resistance and reflective cracking resistance, but there are also major concerns that limits its farther operation. These major concerns include low solubility of Crumb Rubber(CR) in asphalt, high density when its incorporated in higher quantities and poor storehouse stability. To counter these limitations of CRMA, a hybrid approach was taken in this study by introducing Waste Cooking Oil(WCO) in CRMA to produce a balance between stiffness and fluidity and to optimize the application of WCO along with CR to reduce the volume of base bitumen by adding the donation of waste materials. A laboratory-based study was conducted to ascertain resilient modulus, Tensile strength ratio(TSR), and endless distortion of modified asphalt mixtures. It was observed that WCO can regulate the part of CR in asphalt because it eased the swelling action of CR in asphalt as indicated by enhanced performance parcels. It was also found that the resilient modulus was increased by 44 percent respectively as compared to control mixtures, whereas the humidity resistance was increased by 7. Furthermore, advanced tablets of the modifier led to drop in resilient modulus, rutting resistance, and humidity resistance. Eventually, the results the modifier has a significant impact on the performance pointers of modified asphalt-mix.