Construction steps for laying geomembrane in landfill sites
Landfill geomembranes have many advantages and characteristics. The laying process is very simple, but proper processing techniques should be followed during the laying process to ensure the normal application of landfill geomembranes and avoid any difficulties. Little do they know, there are still many people who are not very clear about the actual structural process of geomembranes in landfills. Below, the manufacturer of geomembrane for landfill sites will provide a detailed introduction to everyone.
1. The geomembrane for the landfill site is packaged in whole bundles, with each bundle measuring approximately 600 square meters and 6 meters wide. Therefore, when the wind exceeds level 4, it cannot be laid. It should be bonded when laying and covering the protective layer thickness.
2. When laying the waterproof layer membrane, the geomembrane of the landfill site should be leveled, relaxed (about 3-5), and have no support force or suspension. In addition to laying, it is necessary to check whether the geomembrane of the landfill site has significant holes and damage; Is there a significant uneven meridian condition and initial joint bounce and viscous water hydrophilicity. If the problem is discovered, it is necessary to carry out bonding, repair, and replacement on the spot. Preventive measures such as water leakage.
3. The geomembrane of the landfill site should maintain a bonding width of 15 to 20 centimeters. The geomembrane of the landfill site with adhesive width is cleaned with ethanol or toluene, and then adhered after evaporation of the alcohol or toluene.
4. After carrying out the lap joint, lay the lap joint along the wooden board and use a general iron heated for 10 to 15 minutes to iron along the joint to make it firmly adhered. The contact surface of the wooden pad and lap joint is 5 centimeters wide to consider the requirement of overlapping total width. After grinding the ironing process, inspect the lap joint in detail on the spot and before the next ironing and lap joint operation.
5. During the laying process, the landfill geomembrane is not easily exposed to the sun for a long time. During the laying process, a landfill geomembrane should be laid, and the soil should be immediately backfilled to avoid reducing its compressive strength due to UV radiation sources.
When laying geomembranes for landfill sites, follow the method described to fully utilize their function and avoid damage.