Polymer-modified bitumen emulsion is a bitumen emulsion enhanced with polymers like styrene-butadiene-styrene (SBS) to improve its performance characteristics. The addition of polymers increases elasticity, flexibility, and resistance to deformation and cracking. This makes the emulsion more suitable for heavy traffic conditions and extreme temperatures. Benefits include enhanced durability, longer pavement life, reduced maintenance costs, and improved resistance to rutting and fatigue. It is ideal for applications requiring superior performance, such as highways, airports, and heavy-duty industrial pavements.