The Handbook of PE-HD Sealing Membranes in Geotechnics provides a comprehensive and detailed analysis of the properties and applications of PE-HD materials in geotechnics. It is aimed at professionals and students involved in the production, testing, and application of sealing membranes. The book covers various aspects, including the deformation behavior and long-term performance of sealing membranes, as well as pollutant permeation. Additionally, important topics such as installation techniques, welding technology, and sealing control systems are addressed. The included standards, guidelines, and recommendations offer valuable information for practical application and the selection of suitable materials. With a clear focus on the needs of the industry, this handbook is an indispensable reference for anyone working in geotechnics.