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PVC GEOMEMBRANES

 

Flexible Polyvinyl Chloride film (usually called PVC) is the most commonly specified lining material in the industry. Manufactured by the calendaring or extrusion process, it is a highly flexible, non-reinforced, cost-effective, waterproofing geomembrane with many uses and advantages. PVC films are blends of rigid PVC (such as in PVC pipe) with softening agents called plasticizers. These plasticizers make the PVC soft and supple so that it can be rolled, fabricated, and placed as a liner material in complex installations. PVC is an elastic material that can conform readily to irregular shapes and differential settlement. PVC is one of the most versatile plastics available with formulations that can provide oil resistance, UV stability, low temperature resistance, and other specific properties. PVC is also the easiest material to repair with repair kits available. Standard formulations of PVC geomembrane materials are blended for longevity and low cost.

Factory fabrication eliminates up to 88% of field seaming. PVC can be fabricated into panels up to 4.000 sqm in a climate controlled manufacturing plant and then shipped to the site for installation. Using pre-fabricated panels makes it possible for crews to install acres of lining per day and reduce overall construction time.

Since PVC is degraded by sunlight; it requires being covered with a minimum of 30 cm of clean fill to function as designed. In prolonged exposure to sunlight, PVC must be covered before warranted for life span. In buried applications, PVC can provide a service life of over 20 years. 

For larger ponds and lakes, consideration for erosion and wave action should be taken into account. The use of rip-rap, concrete shore protection or synthetic erosion control protection is highly recommended.

 

PVC uses: Decorative Ponds & Lakes, Water Features, Fish Hatcheries, Reservoirs, Landfill Caps, Waste Water Treatment Facilities, Golf Course Ponds, Streams, Irrigation Ponds, Canals & Channels, Aquatic Habitats, Storm Water Holding Basins, Detention & Retention Ponds. PVC is available in reinforced and non reinforced material.

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