Essential details
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Product Introduction
Precautions
(1) The treatment of geomembrane seams is a critical procedure in construction, directly impacting the operational lifespan of the project. Quality inspections indicate that the hot-welding method is the most ideal approach (specialized adhesives may also be used). The hot-welding method involves heating the contact surfaces of the PE geomembrane sheets until they melt, and then applying pressure to fuse them into a single, integral unit.
(2) The geomembrane should be laid out in a specific, consistent direction. A designated margin of the PE film—free from the non-bonding PET layer—must be reserved along both edges of the geomembrane sheets. During installation, the alignment of each individual geomembrane unit must be carefully adjusted to facilitate the subsequent welding of adjacent units.
(3) Once laid, the geomembrane must be anchored using sandbags to prevent displacement caused by wind. It is imperative that the areas designated for edge seams remain free of contaminants, moisture, dust, and other debris.
(4) Prior to welding, the PE film edges of the two adjacent sheets at the seam must be carefully aligned to ensure a proper overlap width; the overlapping surfaces must be flat and free of wrinkles.
(5) Welding operations should be performed by experienced technicians utilizing specialized welding equipment. The welding temperature and speed must be carefully calibrated (adhesive bonding is also an option).
Years of practical experience have demonstrated that the geomembrane thickness should be no less than 0.25 mm; material that is too thin is prone to developing pinholes and is susceptible to damage during construction, thereby compromising its anti-seepage effectiveness. During geomembrane installation, particular attention must be paid to ensuring that the material is not laid too tautly, that no wrinkles or folds are formed, and that all splices are securely bonded. Construction must strictly adhere to technical specifications, maintaining rigorous quality control across five key stages: preparation, laying, splicing, inspection, and backfilling.
(1) The treatment of geomembrane seams is a critical procedure in construction, directly impacting the operational lifespan of the project. Quality inspections indicate that the hot-welding method is the most ideal approach (specialized adhesives may also be used). The hot-welding method involves heating the contact surfaces of the PE geomembrane sheets until they melt, and then applying pressure to fuse them into a single, integral unit.
(2) The geomembrane should be laid out in a specific, consistent direction. A designated margin of the PE film—free from the non-bonding PET layer—must be reserved along both edges of the geomembrane sheets. During installation, the alignment of each individual geomembrane unit must be carefully adjusted to facilitate the subsequent welding of adjacent units.
(3) Once laid, the geomembrane must be anchored using sandbags to prevent displacement caused by wind. It is imperative that the areas designated for edge seams remain free of contaminants, moisture, dust, and other debris.
(4) Prior to welding, the PE film edges of the two adjacent sheets at the seam must be carefully aligned to ensure a proper overlap width; the overlapping surfaces must be flat and free of wrinkles.
(5) Welding operations should be performed by experienced technicians utilizing specialized welding equipment. The welding temperature and speed must be carefully calibrated (adhesive bonding is also an option).
Years of practical experience have demonstrated that the geomembrane thickness should be no less than 0.25 mm; material that is too thin is prone to developing pinholes and is susceptible to damage during construction, thereby compromising its anti-seepage effectiveness. During geomembrane installation, particular attention must be paid to ensuring that the material is not laid too tautly, that no wrinkles or folds are formed, and that all splices are securely bonded. Construction must strictly adhere to technical specifications, maintaining rigorous quality control across five key stages: preparation, laying, splicing, inspection, and backfilling.