PGI Technical Bulletins

 


As of 2009, the PVC Geomembrane Institute no longer exists. The Specifications related to PVC fabricated geomembranes are now under the guidance of ASTM International. All relevant information for PVC Fabricated Geomembrane Material, Seams and Field Seam Testing has been covered by specifications devewloped by the D-35 Geosynthetics Committee of ASTM International.


MATERIAL PROPERTIES

ASTM D7176 - 06 Standard Specification for Non-Reinforced Polyvinyl Chloride (PVC) Geomembranes Used in Buried Applications

This specification covers polyvinyl chloride (PVC) flexible sheeting which is used for construction of concealed containment-membranes. Examples are ponds and lakes, canals, reservoirs, landfill liners, covers and closures or similar installations where the membrane is inaccessible once the construction is complete. Included are requirements for materials and sheeting, test methods, workmanship criteria and methods of marking. This Specification covers un-reinforced flexible sheet made from polyvinyl chloride (PVC) resin as the primary polymer intended for use in geomembranes. This specification covers PVC sheet 0.25 mm through 1.5 mm thickness (0.010 in. through 0.060 in.)-typically used for geomembrane linings.

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SEAM SPECIFICATION

ASTM D7408 - 08 Standard Specification for Non Reinforced PVC (Polyvinyl Chloride) Geomembrane Seams

This specification covers the minimum values for seams fabricated into unreinforced PVC geomembranes in factory and field applications.

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FIELD SEAM TESTING

ASTM D7177 - 05 Standard Specification for Air Channel Evaluation of Polyvinyl Chloride (PVC) Dual Track Seamed Geomembranes

This specification covers a nondestructive evaluation of the strength and continuity of parallel PVC geomembrane seams separated by an unwelded air channel. The unwelded air channel between the two distinct seamed regions is sealed and inflated with air to a predetermined pressure. Long lengths of seam can be evaluated by this specification more quickly than by other common nondestructive tests.

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