What process parameters influence disadvantages of polymer modified bitumen in asphalt or bitumen modification?

The disadvantages of polymer modified bitumen (PMB) in asphalt can be influenced by several process parameters. Key factors include the type and concentration of polymer used, the mixing temperature, and the duration of mixing. Higher polymer concentrations can lead to increased viscosity, complicating application. Inadequate mixing temperatures may result in incomplete polymer dispersion, affecting performance. Additionally, the choice of bitumen grade and the presence of additives can also impact the overall effectiveness and durability of PMB.