QAS – A waterproof quality assurance system
The Elastoseal EPDM Geomembrane is a completely engineered system, where product, seaming, details, installation technique and site quality assurance guarantees a maximum of safety and performance. The traceability from production to fabrication and finally to installation is always guaranteed
Supply logistics
Deliveries to the site are controlled for quality by ensuring packing, transport, storing of material on site and control of received goods is fully documented.
Control of earth works
Before the start of a lining installation the earth work and surface quality as well as compaction is approved by the installer.
The installers quality control records
Include drawings, marking of all panels, documentation of testing and final report to ensure that all materials can be traced back to manufacture.
Trial seam QC testing
The installer controls seam quality prior to each period or shift.
Destructive QC testing
Seam samples are taken each 150‐300 m on all field seams. Seam strength is recorded.
Non destructive QC seam testing
Each dual wedge welded seam is tested with air pressure. All details are tested with air lance.
Repairs and patching
All repairs are fully documented and QC tested.
Cover materials placement
After completion of the lining installation the placement of cover soils and other geosynthetics is closely monitored to prevent damage to the membrane.