How to Rationalize the Construction of Composite Geomembrane in Waterproof Engineering
During the construction of composite geomembrane waterproof engineering, reasonable construction has a very good effect on the quality of the project, but many people are still not very clear about the construction of composite geomembrane. Today, composite geomembrane manufacturers come to tell you Here are the relevant construction matters.
In construction, the sand or clay with a smaller material diameter should be used to level the base surface first, and then the geomembrane should be laid. Do not stretch the composite geomembrane too tightly. The buried soil at both ends is corrugated. Finally, place a 10cm layer of fine sand or clay on the testing method of geomembrane tensile force.
Lay a 20-30cm stone (or concrete prefabricated block) as an impact protection layer. During construction, try your best to avoid the stones hitting the geomembrane directly. The best way to lay is to build the protective layer while laying the membrane. When connecting with surrounding structures, expansion bolts and steel plate bead anchoring methods should be used, and the connection parts should be painted with emulsified asphalt to prevent leakage.
The seam treatment of composite geomembrane is a key process that directly affects the anti-seepage effect. The general seam methods are:
①Lapping: The width of the lap should be greater than 15cm;
②Hot welding: It is suitable for the welding width of the welding seam of the slightly thicker method for improving performance of composite geomembrane base material is not less than 5CM (gluing is not recommended, it is easy to open the glue for a long time and the glue has a poor anti-seepage effect).