Polymer modified bitumen
Polymer modified bitumen (PMB) is a standard grade bitumen blended with carefully selected synthetic or natural polymers to improve the engineering properties.
PMBs confer significant improvements to the deformation resistance and fatigue lives of asphalt mixtures thus increasing the service lives of heavily trafficked road surfaces.
OPG has the capability to supply PMBs according to the regional specifications.
The use of polymers provides significant improvements in the properties of the bitumens. In particular:
• Increase in the ring-and-ball temperature.• Lower thermal susceptibility.
• Increase of penetration rate.
• Increase in range of plasticity.
• Increase in viscosity.
• Greater elastomericity.
• Better performance at low temperatures.
• Greater resistance to aging.
• Improvement in storage stability
