Plastic Polymer Modified Bitumen (PMB)
Plastic Polymer Modified Bitumen (PMB) is a type of asphalt that is produced by adding plastic polymers, such as SBS (Styrene-Butadiene-Styrene) or EVA (Ethylene-Vinyl-Acetate), to conventional bitumen. The addition of plastic polymers improves the performance and durability of the bitumen, making it more suitable for use in challenging environmental conditions, such as high temperatures and heavy traffic.
PMB is commonly used in road construction and in the production of asphalt shingles, roofing membranes, and other roofing materials. It is also used in the manufacture of asphalt mixtures for airport runways and other high-stress applications.
The properties of PMB vary depending on the type and amount of polymer used, and the specific manufacturing process. Some common benefits of PMB include increased flexibility, improved resistance to deformation, enhanced durability, and improved resistance to ageing and environmental degradation.
It is important to follow the manufacturer's recommendations and local regulations when using PMB, as the specific properties and composition of the material may vary depending on the manufacturer and local regulations.