Polymer Asphalt Plant

Polymer Modified Bitumen (PMB) is bitumen (asphalt) combined with one or more polymer materials. This modification is performed with the aim of improving the mechanical properties of bitumen. Polymer modified bitumen is commonly used on road pavements, especially those intended to withstand heavy traffic and extreme weather conditions. This material is also used as a sealant in residential roofing applications.
PMB is typically manufactured by combining bitumen with a styrene butadiene styrene (SBS) copolymer. The addition of polymer makes the bitumen more flexible in nature. Some of the desirable properties of polymer modified bitumen include improved strength, cohesion, and resistance to fatigue and deformation.
PMB also has lower temperature sensitivity than regular bitumen. This is especially important for paving applications because the material will not flow or become soft at high temperatures while maintaining its workability and flexibility at cold temperatures.
Of great importance to the corrosion industry are the improved waterproofing properties of PMB. When applied to steel pipe, PMB prevents water or other electrolyte-rich liquids from coming into contact with the metal substrate. This property makes PMB coating ideal for barrier protection in aggressive environments.
One improvement that has produced desirable results is the addition of polymer to bitumen. Polymers improve the flexibility of bitumen and thus provide several benefits when used in bitumen-based applications.
Styrene butadiene styrene (SBS), which acts as a binder modifying agent, is known to increase the longevity of pavements that are subjected to a range of stressful loads on a daily basis, including high traffic loading and high thermal stresses. Other advantages of PMB when used in paving applications include:
Enhanced rigidity
Improved resistance to deformation
Improved resistance to cracks and peeling
Increased durability
Improved water resistance
Cost benefits of using polymer modified bitumen
Some studies show that polymer modified bitumen can lead to potential cost savings when used in some applications. The improvement in mechanical properties allows PMBs to be applied in thinner layers of unmodified bitumen without showing a decrease in performance. Improvements in bond strength, flexibility and durability significantly improve asphalt fatigue resistance, even in rigid adhesives.
Types of additions and checks