Production and characterisation of waste tire pyrolytic oil-Investigating physical and rheological behaviour of pyrolytic oil modified asphalt binder

The effort of basic restrict the use of petroleum-based products, the use of recycling and alternative resources have tremendous gained interest in the last decades. In this experimental study, waste tire granules were pyrolyzed under a vacuum atmosphere. Pyrolysis experiments occurred in a fixed bed reactor at 450 degrees C. The chemical characterisation of the pyrolytic oil was exanimated by various analytical methods, such as Infrared spectroscopy (FT-IR), ultimate and gas chromatography coupled to mass spectrometry (GC-MS). It was determined that mainly contains aliphatic and aromatic compounds. In addition, pyrolytic oil was used as a partial replacement for conventional asphalt (petroleum-based) to limit the use of conventional asphalt in the applications of road engineering. The effect of the pyrolytic oil additive on the fundamental physical behaviours of the asphalt was evaluated, and also rheological behaviour of the asphalt binder was investigated by the viscosity (RV) and bending-beam-rheometer (BBR) tests. The addition of pyrolytic oil affected some physical properties of asphalt binders more or less. It was found that conventional and pyrolytic oil-modified asphalt samples met the technical requirement based on BS EN 14771 standard. Finally, it can be concluded that asphalt modified with pyrolytic oil can be used in road engineering applications under low-temperature conditions.

Automated summary

The efforts to restrict the use of petroleum-based products, utilize recycling and alternative resources have gained significant interest in recent decades. This experimental study focused on the pyrolysis of waste tire granules under a vacuum atmosphere. The chemical makeup of the resulting pyrolytic oil was analyzed using various methods, including FT-IR and GC-MS, revealing the presence of aliphatic and aromatic compounds. The pyrolytic oil was then tested as a partial replacement for conventional asphalt in road engineering applications, and its effects on the physical and rheological properties of the asphalt were evaluated. The results showed that the addition of pyrolytic oil affected certain physical properties of the asphalt binders, but met the technical requirements based on the BS EN 14771 standard. In conclusion, asphalt modified with pyrolytic oil can be used in road engineering applications under low-temperature conditions.