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Secondary Containment:

Secondary Containment:. From A Contractors Point of View. Secondary Containment:. Advances in Technology Last 10 years. What is Secondary Containment:. Primary (Tanks) vs Secondary (Undertank Liners or Dikes) The Original Secondary Containment. Types of Advances . Materials

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Secondary Containment:

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  1. Secondary Containment: From A Contractors Point of View

  2. Secondary Containment: Advances in Technology Last 10 years

  3. What is Secondary Containment: Primary (Tanks) vs Secondary (Undertank Liners or Dikes) The Original Secondary Containment

  4. Types of Advances • Materials • Seaming Equipment • Testing Equipment • Technician Training

  5. Materials • HDPE (High Density Polyethylene) • Alloys (XR-5, 1932 PTF (polyurethanes) • GCL’s (Geosynthetic Clay Liners-Bentomat, No longer making Claymax) • Others (Concrete Canvas, Spray Applied-poly-ureas,etc)

  6. HDPE • Advances in resins? • Initial resins were pipe grade (not flexible) • Resins over last 10 years have been improved to be more flexible and chemical resistant • Wide flat dies on extruder as opposed to blown film

  7. Alloys • XR-5 • Manufactured in wider rolls • Less seaming • Embed is now available • Improved Walkway material available • Polyurethanes (1932 PTF)

  8. GCL’s • Claymax-Original GCL, no longer produced • Newer GCL’s • Bentomat 200R-Needle punched to prevent migration of bentonite granules • Bentomat CL-Layer of membrane on back • Aqua Shield-Layer of membrane, Pond usage, etc

  9. Others • CONCRETE CANVAS • Concrete still not considered impermeable liner • Product has it’s uses • Cover over membrane • Small dike area, etc. • SPRAY APPLIED (better spray equipment, robot spray equipment now available, Factory sheets shipped to site, less field seaming) • Polyurea’s etc.

  10. Seaming Equipment • Fusion Welders(faster-15’ per foot easy, lighter, smarter) • Extrusion Welders (Alloy extrusion welding, HDPE-faster-6-9’ easy,lighter)

  11. Testing Equipment • Vacuum Box • Air Channel • Air Lance

  12. Temporary Containment

  13. Temporary Dikes • Extruded Products readily available • Larger dikes now available • Materials can be cleaned & re-used • Other quick systems(metal with liner, etc)

  14. Technician Training • Great strides in training of personnel IAGI (International Association of Geosynthetic Installers) FML Manufacturers approval and certification available Installer training (reputable installers) • FML Inspector Certification available(GAI)

  15. PLS Crack FML Inspector

  16. Completed Secondary Containment Liner

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