Performance characterization of crumb rubber modified bitumen using pyrolyzed waste tyre treated bitumen

Exponential deterioration in pavement caused by heavy loads, temperature variations, and rainfall had led to failure. To overcome those failures, bitumen properties needed be enhanced an economical sustainable way. Researchers have used various modifiers enhance the of virgin bitumen, but end product still does not seem accepted asphalt industry at required level. On other hand, construction cost has also increased due addition modifiers, which varying performance characteristics. address such issues, waste materials as crumb rubber obtained from tyres are bitumen. The incorporation been well proven for decades. However, is widely limitations consistency uniformity during after production stages. In this research, was converted into pyrolyzed oil using a pyrolysis protocol it observed through values penetration softening point test shows that optimum 2% can treated with increase workability flowability low temperatures, additional form added homogenously. results showed quantity 20% mass blended modified 5% more compared untreated simultaneously increases physical mechanical mix. It enhances point, viscosity, storage stability while decreasing value.