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.

Sripath Technologies President Krishna Srinivasan Presents on Innovative Additives to Enhance Roadway Performance

Sripath Technologies President Krishna Srinivasan was recently honored to speak to a delegation from the Government of Goa, India’s Public Works Department (Roads) during a conference coordinated by Bitpath, a Sripath affiliate based in India. The presentation topic, “Innovative Additives to Enhance Roadway Performance,” reflected the growing need for solutions to using high-RAP mixes on Indian roadways to address [...]

By Kate Brough|2025-04-11T16:52:36+00:00April 10th, 2025|Categories: Blog, Events/Tradeshows, Webinar|Tags: PGXpand, ReLIXER|0 Comments

Understanding Polymer Modified Bitumen (PMBs) – Frequently Asked Questions

Paved roadways have been around since ancient Babylonian civilizations began blending asphalt with gravel to accommodate travelers and merchants. In more modern times, roads constructed from asphalt, or bitumen, appeared in the late 1700s as chemists started to better understand the binding qualities of natural asphalt in surface performance. Fast forward to today, and the Earth is [...]

By Kate Brough|2024-12-18T20:32:24+00:00February 20th, 2025|Categories: Blog|Tags: PGXpand|Comments Off

Sustainability in Asphalt with Sripath Additives That Support a Reduced Carbon Footprint

Traditional methods and materials for roadway development may be here to stay, but the advent of sustainably produced additives that may support contractor and department of transportation goals to lower their carbon emissions are much newer to the industry. Newer still is the perspective that asphalt and bitumen additives can be produced with a lower carbon footprint, helping [...]

World Highways Highlights Sripath’s Dedication to Sustainability in Asphalt

Sustainability in asphalt may have more of a sense of urgency across the industry today than it did decades ago, but Sripath developed additives to improve bitumen performance with a focus on environmentally friendly options since the start. World Highways wrote about this dedication to sustainable product development in a June 2024 feature article. Sripath not only [...]