PMB mixes have been popular for decades and are designed to maintain the integrity of the roadway while enhancing functional performance characteristics. Most virgin bitumen lacks the complete properties needed in quality to build high-performing roadways. Adding polymers to create a PMB can help strengthen and toughen the roadway surface. PGXpand®, a bitumen-friendly polymer additive, is uniquely designed to allow polymer modified bitumen (PMB) producers to boost the high temperature performance of the binder while maintaining low temperature properties. It minimizes SBS content, improves viscosity, supports higher filler loading, and provides better stability.
Innovations in Bitumen and Asphalt Additives for Every Climate
Asphalt roadways must perform under vastly different environmental conditions such as desert highways, freezing northern roads, rain-soaked coastal infrastructure. Despite these differences, traditional asphalt mixtures are often expected to meet the same performance requirements regardless of climate. This is where innovations in bitumen and asphalt additives have transformed modern pavement engineering. Asphalt additive technologies can enable mixtures to be tailored to the environmental conditions they will face throughout their service [...]
