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PROCEEDINGS OF THE WORKSHOP GEOMEMBRANE SEAMING: DATA ACQUISITION AND CONTROL
Citation:
PROCEEDINGS OF THE WORKSHOP GEOMEMBRANE SEAMING: DATA ACQUISITION AND CONTROL. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-93/112 (NTIS PB94114667), 1993.
Description:
The U.S. Environmental Protection Agency's Risk Reduction Engineering Laboratory, in cooperation with the Geosynthetic Research Institute, sponsored a workshop on Geomembrane Wedge Welding Seaming: ata Acquisition and Control on April 22, 1993. he workshop was held at the Andrew W. Breidenbach Environmental Research Center ln Cincinnati, Ohio. he 109 workshop registrants represented geosynthetics manufacturers and installers, waste management facility owners and operators, construction quality assurance personnel, and Federal and State environmental regulations. The workshop discussion centered on geomembrane seam welders, in particular wedge welders and recently developing data collection devices that may be attached to a welder to help improve the seam-welding process. he date collection devices may be designed to automatically control the welders by responding to the variables that affect the welding process. he variables include sheet temperature, wedge temperature, nip roller, pressure, speed of welder movement along the seam, power input air temperature, and other parameters. Not all participants favored data acquisition welders at this time, Some believed that the expense of retrofitting the industry would be excessive compared with the improvement that would be achieved in the welding process. n general, these participants believed that current welders were adequate and that operator training and craftsmanship were better points to emphasize.
