PGXpand Archives

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.

Road Surface Technologies Issue Highlights PGXpand’s Role in Reducing Carbon Emissions

The global asphalt industry remains under the growing urgency to reduce greenhouse gas (GHG) emissions and support a circular economy. As producers work toward net-zero goals, one key area of focus is the improvement of polymer modified bitumen (PMB), which has remained a cornerstone of durable, high-performance pavements for decades. In a recent feature published in Road [...]

Managing Asphalt Viscosity for Improved Workability

Achieving the right asphalt workability is crucial for ensuring smooth, long-lasting roads. One of the key factors influencing workability is the viscosity in asphalt, which is a measure of its resistance to flow. Properly managing asphalt viscosity ensures mixes can be placed and compacted efficiently while minimizing aging defects such as cracking, rutting, or other deformations. Understanding [...]

Polymer Modification for Asphalt Roadways

Polymer modification is a major area of study and development within the asphalt industry with solutions designed to enhance durability, performance, and longevity for roadways. For contractors, agencies, and engineers seeking high-performing pavements, understanding polymer modification and its practical applications is essential. What is Polymer Modification? Polymer modification involves adding specialized polymers to asphalt binders to improve their physical and chemical properties. By blending [...]

Sripath Partner Spotlight: Blankenship Asphalt Tech & Training

Sripath Technologies’ mission is to deliver cutting-edge asphalt solutions that solve real-world performance issues. Over the years, our collaboration with Blankenship Asphalt Tech & Training (BATT), led by President Phil Blankenship, has been central to that mission. From developing customized mixes to supporting our clients through every step of implementation, BATT has been an extraordinary partner. A [...]