Text Box: June  2007

Text Box: www.pvcgeomembrane.com

Text Box:   PGI offered three of their extremely popular training course Constructing with GCLs and PVC Geomembranes in Mid-May in the Pacific Northwest.  The course was offered on May 21st in Boise, Idaho in conjunction with the Idaho DEQ.  PGI then moved their course to Seattle, WA on May 23rd  and on May 24th in Portland, OR.  PGI partnered with the Northwest Environmental Business Council for the Portland Course.  Dr. Timothy Stark, PGI Program Director and Course Instructor said that attendees included people from within the design, construction, operation, and closure of landfills, brownfields, lagoons, ponds, decorative applications, and individuals working on corrective action activities at closed sites.  The course participants were engaged and excited throughout the full day course which offers 0.8 CEU’s.  PGI plans on offering the course again in late November and/or early December in Phoenix, AZ and Albuquerque, NM. 

Text Box:  PGI successfully conducted three northwest training courses in may

Text Box: PGI Contact: Frank Konvalinka Phone: +1-217-333-3929 Fax: +1-217-244-2839 E-mail: pgi-tp@uiuc.edu   2215 Newmark Civil Engineering Laboratory 205 N. Mathews Ave. Urbana, IL 61801 USA www.pvcgeomembrane.com Text Box: For additional information, visit the following links:

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Text Box:  Click Here to read “Puncture Resistance of PVC Geomembranes” in its entirety. Text Box: PUNCTURE RESISTANCE OF PVC GEOMEMBRANES

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Text Box: T.D. Stark, T.R. Boerman, and C.J. Connor have published a new paper entitled Puncture Resistance of PVC Geomembranes.  Please read the abstract below and click the link below to read the entire paper.   ABSTRACT: This paper presents an experimental study to develop a design procedure for the puncture behavior of Polyvinyl Chloride (PVC) geomembranes.  The puncture resistance was measured using the truncated cone test in which truncated cones are used as puncture points.  The the height of the truncated cones are varied to determine the critical cone height (CCH) which is the height at which geomembrane puncture occurs for a given pressure.  A cushion geotextile is not used in any test to enhance puncture resistance because of the large cone heights required to puncture PVC geomembranes.  Critical cone heights are presented for 0.5 mm, 0.75 mm, and 1.0 mm thick PVC geomembranes.  The results of these tests show that as the thickness of the PVC geomembrane increases, the critical cone height increases.  This indicates an increased puncture resistance with increasing geomembrane thickness.  The results of the puncture tests on PVC geomembranes are compared to other types of geomembranes, e.g., smooth and textured 1.5 mm thick high-density polyethylene and 1.0 mm thick linear-low density polyethylene.  This comparision shows that the puncture resistance of PVC geomembranes exceeds that of the polyethylene geomembranes even though the PVC geomembranes are thinner.