The key process parameters influencing sulfur-modified asphalt include the temperature during mixing, the duration of mixing, and the sulfur content. Higher mixing temperatures enhance the dissolution of sulfur, while prolonged mixing times improve the uniformity of the modification. Additionally, the ratio of sulfur to asphalt affects the performance characteristics, such as viscosity and elasticity. Proper control of these parameters ensures optimal properties of the modified asphalt, enhancing its durability and resistance to deformation.