Eddie Weiser’s scientific contributions

Thermal fusion welding plays a crucial role in ensuring the integrity and effectiveness of geomembrane liners used in geotechnical and hydraulic engineering systems. This technical paper emphasizes the importance of monitoring all welding parameters during the hot wedge or hot air combi thermal fusion welding process to achieve best practices (refer to Photo 1). The paper highlights the significance of factors influencing geomembrane fusion welding and emphasizes the need for accurate control and reproducibility of heat/energy, speed, and pressure parameters. It also discusses the importance of squeeze out and the significance of welding device design principles. The paper concludes by emphasizing the importance of adherence to testing standards and the necessity of incorporating data acquisition systems for post-welding analysis. Photo 1: Fusion (double wedge) welding of HDPE geomembrane 2