Topic:

Evaluating Bituminous Geomembrane in High Temperatures

Course Overview:

The Geosynthetic Research Institute (GRI) develops internationally recognised test methods and specifications for geosynthetic materials, ensuring consistency, reliability, and performance in civil engineering applications. Recent updates to the GRI GM38 test method now allow for increased mineral filler or bulking agent content in Bituminous Geomembranes (BGMs).

In this webinar, Ryan Hackney will explore how different bituminous formulations respond to variations in filler percentages and Styrene-Butadiene-Styrene (SBS) content, highlighting why even small adjustments can significantly influence performance. Using comparative examples and laboratory testing methods, Ryan will demonstrate how BGM formulations can be assessed, compared, and optimised to ensure reliable and predictable modified bitumen properties.

Speaker:

Ryan Hackney is the Mining and Environmental Manager for Geofabrics Australasia and has more than 18 years of experience with geosynthetic testing, analysis, development, and applications. He is passionate about the role geosynthetics play in protecting the environment and how these construction materials can be used as an economical and sustainable alternative to traditional construction methods. Ryan has a bachelor’s degree in Geological Sciences and a master’s degree in Engineering Geology obtained at the University of Leeds in the UK. He is the past Secretary, and current Vice President of the Australasian Chapter of the International Geosynthetics Society.

Learning Outcomes:

• Understand the methods used to assess how bitumen is modified
• Learn how different bitumen formulations impact performance in extreme temperatures
• Gain insight into the laboratory testing methods used to assess, compare, and optimise BGM formulations for reliable and predictable outcomes