Geomembrane

Composite geomembrane is a non-polar thermoplastic synthetic material

2020-12-16
High-density polyethylene (HDPE) composite geomembrane is a non-polar thermoplastic synthetic material with high impermeability, corrosion resistance and stable chemical properties. It is widely used in the impermeable treatment of basic buildings such as highways, railways, and reservoirs. In addition, the high-density polyethylene composite geomembrane can also be used in the construction process of underwater engineering, sewage treatment, wastewater treatment and other projects. In specific operations, it is necessary to fully control raw materials, conduct access inspections, improve the proficiency of personnel, and allow more operators to understand welding technology and inspection content.






As a result, the tensile performance of the high-density polyethylene composite geomembrane is improved, and material deterioration is avoided. At present, it is necessary to strengthen the construction quality management of composite geomembrane, and comprehensively control personnel, mechanical equipment and materials. Strictly refer to specific construction organization procedures for quality research.

Usually in engineering construction, high-density polyethylene geotextile is located on the protective layer of the non-woven fabric. The fabric is thin, and the geotextile in the lower layer is easy to burn during thermal welding, so the geotextile can be laid by hand welding.

The technical indicators of geomembrane must be strictly controlled to ensure quality, and on this basis, the control of raw materials must be strengthened. Generally speaking, in the concrete construction plan of the composite geomembrane, climate control is first carried out, and the optimal temperature is between 50 and 40. The laying of the composite geomembrane is easily affected by temperature. When the temperature is low, the geomembrane must be laid tightly. On the contrary, the laying of composite geomembrane is loose, avoiding operation in the hot season. When laying composite geomembrane, it should meet the requirements of technical specifications. The relevant civil engineering inspection certificate is required before the operation, and the size must be measured before cutting the composite geomembrane. Especially in corners and complex areas, minimize the degree of joining. In the bedding operation, please avoid manual wrinkles and lower the temperature to avoid a series of problems such as distortion and overlap. When it exceeds the stretching range, local cracks and top damage will occur.
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