This December 2025 short course will focus on the basics of welding geomembranes and understanding how to achieve a suitable weld quality, using thermal fusion welding technologies. e.g., hot wedge and hot air, and hand extrusion welders. In particular, the course will focus on: (1) welding different geomembrane polymers, (2) types of welding and equipment selection, (3) welding parameters, and (4) importance of seam testing. The following people should consider attending: engineers, regulators, CQA personnel, installers, fabricators, and end users.
Part 4 Importance of Seam Testing will focus on the following:
• Non-Destructive Testing – air channel, pick, air lance, and vacuum testing
• Destructive Testing – In-house and 3rd Party Testing
• Factory and Field Testing
• What if seam test(s) fails - Patching
• Project goal is a liner system that does not leak – work together-welder, CQA, regulator, engineer, supplier, etc.