On-Demand Webinar: Waterproofing Systems for Dams
Association of State Dam Safety Officials, 2015
The first geomembranes were installed on dams in 1959 in Italy and British Columbia: both systems were covered. In the 1970’s geomembranes began to be installed on dams exposed. In the next 20 years exposed geomembrane systems would be installed on more than 2 dozen dams, primarily in Europe. The first exposed geomembrane system on a dam in the United States was installed in 1997. The United States now has the largest installed base of exposed geomembrane systems on dams in the world and the overall world inventory has quadrupled in the last 20 years to more than 100 dams worldwide.
This webinar gives an overview of the 2010 ICOLD Bulletin 135, “Geomembrane Sealing Systems for Dams” focusing on the evolving technology of exposed geomembrane sealing systems. The webinar begins with a summary of the materials, testing, and aging of geomembranes; different loads and physical considerations; and examples of installations on fill, gravity, masonry, and RCC dams, along with special applications on dam cracks/joints and underwater installations. The webinar will conclude with QC considerations for the geomembrane sealing systems along with guidance on technical and contractual specifications. The agenda will closely follow the ICOLD Bulletin 135 content.
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Speaker(s): John Wilkes
Revision ID: 2256
Revision Date: 08/19/2022