Innovation is often the result of years of asking the right questions, testing assumptions, and refining ideas until chemistry and application finally align. As Sripath Technologies celebrates 20 years of innovation, PGXpand® stands as a clear example of this philosophy in action. PGXpand was not developed to simply replicate what existing polymers already did for bitumen. Instead, its development began with a more fundamental challenge: [...]
The push to increase reclaimed asphalt pavement (RAP) usage has moved from purely a sustainability talking point to a strategic priority for agencies and producers worldwide. Rising material costs, tightening environmental regulations, and growing pressure to reduce embodied carbon have made higher RAP contents increasingly attractive. And yet, despite these incentives, many departments of transportation and asphalt producers continue to cap RAP usage between 20-30%. [...]
Polymer modified asphalt (PMA), or polymer modified bitumen, has long been used to improve pavement durability under increasing traffic loads, climate variability, and performance-based specifications. Traditionally, PMA has relied on elastomeric or plastomeric polymers to enhance specific properties such as rutting resistance and durability. While effective, these approaches often introduce challenges related to storage stability, viscosity control, energy consumption, and cost. As the asphalt industry continues [...]
Polymer Modified Bitumen (PMB) has become a cornerstone of modern asphalt pavement design, particularly for high-performance roadways exposed to heavy traffic loads and extreme climates. Among the most widely used polymers in PMB is Styrene-Butadiene-Styrene (SBS). While SBS offers significant performance benefits, achieving those benefits consistently depends on one often overlooked factor: crosslinker compatibility. What Is an SBS Asphalt Mix? [...]
