Effect of Temperature on the Mechanical Behavior of Bituminous Mixture with Waste Oil and Tire Rubber

Abstract

The bituminous mixture of flexible pavement subjected to complex stresses such as traffic load and climatic conditions due to daily and seasonal variations causes damage to the surface course. On the other hand, the incorporation of several alternative materials, such as waste cooking oil (WCO), waste engine oil (WEO), and crumb tire rubber (CTR), into bituminous mixtures to improve their performance. This research aims to study the effect of temperature on the mechanical behavior of bituminous mixtures with WEO or WCO combined with reacted and activated rubber (RAR) using the Fénix test at different temperatures (0, 5, 10, and 25°C). The results showed that the bituminous mixture with (AB-WRCO) has higher maximum strength (RT) values than the bituminous mixture with (AB-WREO) at all temperatures tested. While the fracture energy was higher at 5 and 10 °C for AB-WRCO and AB-WREO, respectively, Furthermore, these alternative solutions involve attaining economic benefits and preparing an eco-friendly asphalt pavement.