Evaluation Performance of the Asphalt Concrete with Crumb Rubber

Many researchers have been researching alternative materials to be used as modifiers in asphalt mixtures to improve their properties. This study presents a study of laboratory evaluation of the performance of hot-mixed asphalt (HMA) using crumb rubber as an additive. It is noted that crumb rubber was identified to have potency as a modifier in HMA due to the elastic behavior exposed by the rubber particles, especially in reducing the rutting potential. This research used fine crumb rubber Shred (2.36-0.85 mm) obtained by an ambient-temperature grinding process from discarded truck tires to modify asphalt concrete. The fine crumb rubber with different contents, i.e. 2.5%, 5%, 7.5%, and 10%, was incorporated into the mixture using the dry process method.