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Elasti Liner "Ultimate Containment Liner"
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Elasti Liner "Ultimate Containment Liner"

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This presentaion outlines the features and benefits of this remarkable secondary containment liner.

This presentaion outlines the features and benefits of this remarkable secondary containment liner.

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Transcript

  • 1. Secondary Containment for Concrete Structures, A Review
    • Brought to you by
  • 2. The Need for Secondary Containment
        • EPA, local and state regulations
        • Liability and public relations issues
        • Protection of the environment
        • Reliable structural protection
  • 3. ENVIRONMENTAL PROTECTION
  • 4. Reliable Structural Protection
    • Protection of concrete from spills of acids and alkali
    • Protection from erosion in sluiceways and trenches
    • Protection from thermo cycling from steam cleaning
    • Waterproofing floor decks
  • 5. What Is ” Effective Secondary Containment " ?
    • Crack bridging over both existing and newly developing cracks
    • Make concrete impermeable to chemical infiltration
    • Resistance to chemical attack for the duration of the spill without damage to the lining
    • Condition of the containment system after the spill is cleaned up
  • 6. The Technology
    • Thermoset Polymer Systems
    • Flexible Elastomers
    • Combination Systems
    • Semi-Flexible Thermoplastics
    • Elasti- Liner
  • 7. Rigid Thermoset Polymers
    • Epoxies: Amine, Novolac
    • Polyesters & Vinyl Esters
    • Unreinforced/Reinforced
  • 8. Rigid Thermoset Polymers
    • Monolithic when reinforced with fiberglass with no seams or joints
    • Sprayable systems using laminar flakes for reinforcement and permeation resistance
    • Epoxies in strong alkalines Polyesters in acidic environments
    • Vinyl Esters in acid to alkaline with solvent resistance.
    • Novolac Epoxy strong mineral acid, caustics and solvents
    • Resistance to weathering and ultraviolet light
    • No crack bridging
  • 9. Flexible Elastomers
    • Polyurethane
    • Polyurea
    • Polysulfides (Joint Sealants)
  • 10. POLYURETHANE
    • Two part spray applied
    • Moisture sensitive
    • Low permeation resistance
    • Good weathering
    • Diluted Acids, Alkali & Oils
  • 11. POLYUREA
    • Rapid cure only
    • Moisture insensitive
    • High temperature compared to Polyurethane
    • Poor weathering
    • Swells in oil and solvents
    • High modulus (less elastic)
  • 12. Polysulfides (Joint Sealants)
    • Techni-Plus Flex 3 from KCC Corrosion Control
    • Crack Sealant for low cost minimum containment
    • Poor UV Stability
    • Good in oils poor in acids
  • 13. Combination Systems
    • Plate Glass over a Mattress
    Concrete Substrate Fiberglass Overlay Elastomeric Basecoat Rigid Chemical Resitant Topcoat
  • 14. Flexible Thermoplastics
    • High Density Polyethylene (HDPE)
    • Polyvinyl. Chloride (PVC)
    • OTHER
  • 15. HDPE
    • Used over soil for Pond liners and liners for Landfills
    • Difficult to use when liners have pipe penetrations
    • Non adhered to concrete
    • UV Problems
  • 16. Polyvinyl. Chloride (PVC)
    • Non adhered to concrete: shop made “drop in liner”
    • Used for primary tank liners
    • Useful for secondary containment in small indoor applications
    • UV Problems
  • 17. OTHER
    • HYPALON
    • FEP -Fluorinated Ethylene Propylene
    • PVDF- Polyvinylidene
  • 18. Elasti-Liner from KCC Corrosion Control
  • 19. Elasti-Liner
    • Breakthrough in polymer chemistry
    • Secondary containment of the most corrosive chemicals used in industry today
    • Excellent elongation and tensile properties
    • Chemical resistance equal to or superior to the rigid and thermoplastic polymers.
    • Spray, roller, or squeegee applied
    • 250% elongation but will resist immersion of unlimited duration in aggressive aqueous chemistry
  • 20. Vaaler Award Winner 1995 , 1997
  • 21. Cracked Containment Lining Before:
  • 22. Elasti - Liner Installed over Cracked Lining
  • 23. Elasti - Liner Joint
  • 24. Elasti - Liner Joint
    • Extruded version in 5” wide rubber like tape
    • Chemically adhered to new or old concrete, polymer or steel
    • Crack bridging of 250 mils for expansion joints, construction joints and or cracks in foundations
    • Resists immersion in aggressive aqueous chemistry
  • 25. Testing Crack Bridging Systems
  • 26. Test method which best duplicates actual conditions:
    • Demonstrates very slow movement of the lining from two distinct starting points
    • Lining is covering an existing crack and over an uncracked surface where a new crack is induced.
  • 27. Comparison of Materials
        • PERFORMANCE RATINGS OF POLYMERS COMMONLY USED IN SECONDARY CONTAINMENT ON CONCRETE
        • Materials Tensile Crack Weather ing Chemical Elongation Bridging Resistance
        • Epoxies 1% - 8% poor good good
        • Epoxy Novola 1% - 5% poor good excellent
        • Vinyl Esters 1% - 3% poor good excellent
        • Polyester 1% - 3% poor good good
        • Polysulfides 200% - 400% good poor poor
        • Polyurethane 200% - 300% good good fair
        • Polyurea 200% - 400% fair fair good
        • Flex. Plastic 100% - 200% good fair good
        • Elasti-Liner 250% excellent excellent excellent
  • 28. Comparative Costs
    • Rigid Unreinforced Coatings $3.00 - $8.00 per square foot
    • Rigid Reinforced Linings $8.00 - $12.00 per square foot
    • Rigid Reinforced over flexible basecoat $8.00 - $12.00 per square foot
    • Urethane/ Polyurea Unreinforced $3.00 - $6.00 per square foot
    • Sheet goods $4.00 - $17.00 per square foot
    • Elasti-Liner $5.00 - $12.00 per square foot
  • 29. Summary
    • An effective lining system must:
      • Bridge moving cracks
      • Resist chemical exposure for significant duration without damage
      • Pass an environmental inspection after a spill is removed
      • Lining systems that compromise any of these principles will also compromise the owner's facility and legal responsibility