PVC affords the installation contractor the luxury of using three proven seaming methods: chemical fusion, hot wedge or hot air welding. The hot wedge and hot air welding can be performed using a single- or dual-track wedge. Each seaming method has proven itself viable in the field. This versatility of PVC within all of the industries that it has serviced over the past four decades makes PVC geomembrane attractive to the specifying community. For applications such as landfill liner and cover systems where the quality assurance (QA)/quality control (QC) requirements are stringent, dual-track wedge welding may be the engineering community's preferred method because the seam can be air-channel-tested. On 11 October 2004, a number of PVC Geomembrane Ins titute (PGI) members assembled at the Colorado Lining International facility near Denver to develop a consensus on the procedure for efficient field dual-track welding and air-channel testing of PVC geomembrane seams for landfill liner and cover systems.
|Original language||English (US)|
|Number of pages||4|
|Specialist publication||Geotechnical Fabrics Report|
|State||Published - Mar 1 2005|
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Polymers and Plastics