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.

PGXpand Polymer Additive for Asphalt Used Rutting and Compaction Trial in India

Rutting in high-traffic roadways continues to be a challenge for departments of transportation the world over. As older, failing surfaces are replaced, contractors are looking for solutions to improve long-term performance outcomes for the new roadways. A recent World Highways article highlighted how Indian roadways can benefit from incorporating PGXpand® into their polymer modified bitumen (PMB) mixes. [...]

Sripath Presenting at HAPA XXIII International Conference in Siófok

Dr. Krishna Srinivasan, President of Sripath Technologies LLC is presenting at the HAPA XXIII International Conference in Siófok, Hungary, February 14 to 15, 2023. Krishna will present a paper titled “Bitumen-Friendly Polymer Delivers Superior Roadways” on Wednesday February 15 2023, 10:45 to 11:00 AM in Section V: "What Can Additive Manufactures Do to Save Energy and Create a [...]

PGXpand®, the Bitumen-Friendly Polymer by Sripath® featured in the Roads & Infrastructure magazine

The November 2022 issue of the Roads & Infrastructure Magazine Australia featured an article titled “Bitumen’s Best Friend”. The article focuses on PGXpand®, a Bitumen-Friendly Polymer developed by Sripath Technologies®, which is used to improve the overall performance of roadways, while providing substantial environmental benefits. Unlike most traditional polymers, PGXpand is an extremely bitumen-friendly polymer. It is a [...]

PGXpand’s Unique Characteristics on Display in Roads & Infrastructure Australia

Polymer modified bitumen (PMB) mixes are nothing new to the asphalt industry. But many traditional polymer additives for asphalt require high energy and high temperatures for blending, which can be taxing on environmental resources and production costs. Roads & Infrastructure Australia took a closer look at Sripath’s PGXpand®, a specially engineered molecule and bitumen-friendly polymer additive that works [...]