One of the current research topics being pursued by the PYC Geomembrane Institute (PGI) is the thermal welding and subsequent air channel testing of PYC geomembrane seams, which is the focus of this article. Other active research projects include the long-term performance ofPYC geomembranes using field case histories, shear behavior of PYC geomembrane interfaces, puncture characteristics of PYC geomembranes, and the chemical resistance ofPYC geomembranes. These projects will be discussed in future articles.
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