GCLs: From Specification to Performance

Understanding how GCLs work, where they fit, and why they continue to be specified worldwide.

Geosynthetic Clay Liners (GCLs) have been used successfully around the world for decades, yet they remain one of the most misunderstood barrier technologies in civil and environmental engineering.
Many professionals associate GCLs exclusively with landfill applications, while others question their long-term performance compared to more familiar barrier systems. As a result, GCLs are often overlooked during project planning and specification, despite their proven use across a wide range of infrastructure, water containment, environmental, and mining applications.
Join us for a practical and engaging fireside chat as we explore the engineering principles behind GCL technology, address common misconceptions, and discuss how informed specification decisions can contribute to long-term project success.

Date: July 23, 2026,

14.00 to 14.45 p.m., GMT+8


Language: English

Photo during revetment construction with installation of bentonite mat sealing system.

About the webinar:

This 45-minute conversational webinar brings together technical expertise and real-world experience to help engineers and project stakeholders better understand the role of GCLs in modern barrier systems.
Rather than a product presentation, the conversation focuses around the fundamentals of GCL technology, how it works, where it is used, and what engineers should consider when evaluating containment solutions.
Through an interactive discussion format, we will compare GCLs with other commonly specified barrier systems, explore practical installation considerations, and answer some of the most frequently asked questions from the industry.
Whether you are new to GCLs or looking to deepen your understanding, this conversation will provide valuable insights that can help improve design decisions and specification confidence.

Content:

  • Understanding GCL Technology

  • Comparing Barrier Solutions

  • Applications Beyond Landfills

  • Design, Installation & Performance

  • Myth-Busting Session

Your benefit:

  • Technical clarity:  Gain a clear understanding of how GCLs function as hydraulic barriers and how they compare with geomembranes and other containment solutions.

  • Better decision-making: Build confidence when evaluating, selecting, or specifying containment systems for different project requirements.

  • Long-term performance insight:  Understand the key factors that influence barrier performance, lifecycle durability, and reliable project outcomes.

  • Practical engineering knowledge:  Learn from real-world applications while separating proven engineering facts from common misconceptions about GCL technology.

Your speaker:

Saleehah Mohd Nizam, Technical Manager, Naue Asia