Evaluating the Rheological Behavior of Bone-Glue Modified Asphalt

Abstract

Worldwide, asphalt is one of the most widely utilized materials in pavement constructions. The loading and temperature conditions have a significant impact on the asphalt behavior. Various additives have been used over time to enhance asphalt's performance at both high and low temperatures. As the weather in Pakistan is hot for the majority of the year, flexible pavements benefit from the use of asphalt binders that are resistant to the effects of high temperatures. Researchers have attempted to enhance the asphalt mixture's high-temperature performance by adding acids, polymers, fibers, and extenders. In this study, bone glue (BG), a biomaterial produced from animal waste, was added to a base binder in concentrations of 2%, 4%, and 6% by weight. The BG is made in an environmentally responsible manner. It is a natural material that saves money and does not harm the environment. It also results in a long-lasting asphalt composite. Testing methods, such as consistency and rheology analysis, were used to determine how much of an impact bone glue had on asphalt binder. The results demonstrated that the asphalt binder's high-temperature performance was significantly enhanced by the incorporation of bone glue. Rheological testing revealed that a binder concentration of 6% BG by weight produced the best results.