Plastic tarpaulin seam skills

The seam treatment of plastic tarpaulin is a key process, which directly affects the anti-seepage effect. The general seam methods are: 1. Overlap: The width of the overlap should be greater than 15cm. 2. Thermal welding: suitable for slightly thicker geomembrane substrates, and the lap width of the welding seam is not less than 5CM. (Gluing is not recommended, it is easy to open the glue after soaking in water for a long time, and the anti-seepage effect is poor.) Precautions for the construction of plastic tarpaulin: 1. The use must be embedded: the thickness of the cover should not be less than 30cm. 2. The renovation anti-seepage system should consist of: cushion layer, anti-seepage layer, transition layer and protective layer. 3. The soil should be solid, to avoid uneven subsidence, cracks, and the turf and tree roots within the anti-seepage range should be eradicated. Sand or clay with small particle size is laid on the contact surface with the membrane as a protective layer. 4. When laying, the plastic tarpaulin should not be pulled too tightly. The red corrugated part buried in the soil at both ends is better, especially when it is anchored with rigid materials, a certain amount of elasticity should be reserved. 5. During construction, stones should be avoided, heavy objects should be directly smashed on the plastic tarpaulin, and the protective layer should be covered at the same time as possible during construction, while laying film.

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