What process parameters influence crumb rubber modified bitumen in asphalt or bitumen modification?

The key process parameters influencing crumb rubber modified bitumen include the rubber particle size, blending temperature, and mixing time. Smaller rubber particles enhance dispersion and interaction with bitumen, while higher blending temperatures facilitate better dissolution. Additionally, extended mixing times improve homogeneity and performance characteristics. The ratio of crumb rubber to bitumen also plays a crucial role in determining the final properties, such as viscosity and elasticity, impacting the overall performance of the asphalt mixture.