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Welding concrete protection liner with Leister

6/28/2016

 
Massive tanks are currently being built in Doha, Qatar. They each have a capacity of 150,000 m3 and will later supply the pre-planned town of Lusail with valuable potable water. To protect the poured concrete foundation which is at risk of corrosion from saline groundwater, special focus is placed on the sealant system. To this end, a special protective layer made of PE is inserted. On the side filled with concrete, nubs ensure that the protective layer is optimally anchored.

A customized automated machine has been developed
The difficulty when connecting the individual sheets in the protective liner is welding them rationally. Leister Technologies AG has developed a special automatic welder for this. The tried and tested hot wedge welder ASTRO was retrofitted so it runs smoothly between the nubs and can weld the overlapping sheets. The ASTRO CPL (Concrete Protection Liner) runs at 1.5 to 2 meters per minute over the 3 mm thick PE sheets. It connects the stiff PE material with its maximum contact pressure of 1500 N securely and without problems.
Click image to enlarge. 


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  • Home
  • Equipment
    • All Equipment >
      • Air Heaters
      • Automatic Equipment
      • Blowers
      • Extrusion Welders
      • Hot Air Blowers
      • Hot Air Hand Tools
      • Testing Equipment
    • Flooring
    • Geomembrane
    • Industrial Fabrics
    • Manufacturing
    • Plastic Fabrication
    • Roofing & Decking
  • Services
    • Product Selection Help
    • Design Services
    • Installation Support
    • Product Training
    • Product Service
  • Resources
    • Articles
    • Case Studies
    • System Design Calculations
    • Operating Manuals
    • Tech Tips
    • Whitepapers
  • About Us
  • Contact
    • Contact Us
    • Find a Distributor
  • Français