Quality & Delivery
Installation
Installation of Plastic Sails / Liners and Geosynthetic Products
Load / Hem System & Equipment. The processes approved for on-site welding and loads are extrusion welding and fusion welding. All welding / welding machinery is equipped with accurate thermostat / temperature monitoring systems to ensure the correct steps regarding the different welding methods settings on both the Extrusion and Fusion welding machines’ shoe and drum settings are set to the correct welding temperatures
Double Hot Welding (Double Hot Betting)
This is a heating technique that melts the 2 membranes / dam sails / plastic liner of opposite sides’ surfaces together by welding a heated metal pedestal with pressure and movement.
Extrusion welding
This welding method uses a plastic welding cord made of persian the same raw material as the dam sheet / membrane / plastic is made.
The cord is heated to melting point and is lubricated over the welding area where two sails cross each other and it then forms a continuous sail / membrane / plastic layer.
Testing Methods
To ensure quality, longevity and a product that we can confidently hand over to the client, all seams are tested before general seaming operations may proceed via the peel test and air pressure test. We are also able to do a vacuum test and spark test if requested.
Quality Control
Badger Linings incorporate the Geosynthetic Research Institute (GRI) standard specifications ISO 9001:2015. These specifications were incorporated as the backbone of the document to ensure that quality is the vital determining factor for every project. As each project is unique it may be required to adhere to project specific specifications, such documentation when required, which will become an appendix to the project contract or the document.
The document covers the most common geosynthetic components used for the construction of a synthetic lining system, including geomembranes; geotextiles; geonets, geocomposites and geosynthetic clay liners. This document out lines the quality control procedures and recommended standards, to which the above-mentioned geosynthetic products have to be installed.
Our quality assurance/quality control
- Personnel functions and duties on site
- Pre-Construction Meeting
- Geomembranes layout and process tests
- Geotextiles layout and process tests
- Geocomposites layout and process tests
- Geosynthetic Clay Liners layout and process tests
- All on site test logs (Destructive and Non-destructive)
Pipe Boot
- Pipe penetration: minimum 300mm(to advise)
- Clearance to do watertight seal around pipe Ideal surface preparation
- Sandbags for holding down liners and prevent wind damage
- Area to be free of any water/mud
- Exposed rocks in lined area to be covered with soil or GEO textile
Anchor Trench
- Anchor trench size: min 300mm by 300mm (to advise)
- Position: 500mm -1500mm away from brim (to advise)
- Trench/canal edges to be round
- No sharp edging
- Backfilling to the outside of dam next to anchor trench
- Soil preparation: Stone free, soft contours
Battens
- Stainless Steel Battens – To mechanical seal the HDPE liner to a structure to make it water tight, to be used for installation under water
- HDPE – Fast Cost effective method to terminate liner onto structures above the waterline.