Investigating the Characteristics of Bitumen Treated with Textile Pyrolysis Oil

As the population explodes, the amount of Municipal solid waste generated is also increasing while an effort is made to mitigate the problem of plastic and rubber, Textile waste is often neglected; nearly 16–20 tons per day is disposed of by burning or landfilling. However, it can be utilized in various sustainable applications, such as modifying bitumen. In this study, Textile Pyrolysis Oil (TXPO) modified bitumen was produced by incorporating TXPO at concentrations of 1, 2, and 3% of the total blend weight. The effects of TXPO on the binder were analyzed through tests measuring penetration grade, softening point, apparent viscosity, and mixing and compaction temperatures. Results indicate that adding TXPO to the base bitumen increased penetration values and slightly decreased the softening points of the modified bitumen. Based on dynamic viscosity tests, it was observed that viscosity increased with increasing TXPO concentration. Furthermore, the mixing and compaction temperatures decreased as the modifier content increased. The TXPO-modified bitumen exhibited suitable properties for use as an alternative to base bitumen in pavement applications in low-temperature regions. Additionally, it is a sustainable solution as it incorporates Municipal solid waste into the production of the modifier.