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What is Compound Geomembrane?
Geomembrane is a material used for waterproofing, insulation, and reinforcement, usually made of polyethylene, polyvinyl chloride, or other synthetic materials. It is widely used in construction, roads, bridges and other projects.
What are the basic features of compound geomembrane?
1. It integrates anti-seepage and drainage, and has the functions of isolation and reinforcement.
2. High composite strength, high peel strength and high puncture resistance.
3. Strong drainage capacity, large friction coefficient and small linear expansion coefficient.
4. Good aging resistance, wide range of environmental temperature and stable quality.
5. It can be applied to water conservancy, chemical industry, construction, tunnel, garbage disposal site and other projects.
What is compound geomembrane used for?
1. Composite geomembrane is suitable for anti-seepage treatment in environmental protection and sanitation projects such as landfills and sewage treatment pools.
2. It is suitable for anti-seepage treatment in water conservancy projects such as artificial lakes, canals, and reservoirs;
3. Composite geomembrane is suitable for seepage prevention of underground construction projects, roof gardens, warehouses and other construction projects;
4. Suitable for seepage prevention of landscaping and greening projects;
5. Suitable for anti-seepage of petrochemical system;
6. Compound geomembrane is suitable for anti-seepage in aquaculture industry;
7. Compound geomembrane is suitable for anti-seepage and anti-seepage of salt industry and other projects.
Product Specifications:GB/T17642-2008 | |||||||||
Item | Value | ||||||||
normal breaking strength/(kN/m) | 5 | 7.5 | 10 | 12 | 14 | 16 | 18 | 20 | |
1 | breaking strength(TD,MD),kN/m ≥ | 5.0 | 7.5 | 10.0 | 12.0 | 14.0 | 16.0 | 18.0 | 20.0 |
2 | breaking elongation(TD,MD),% | 30-100 | |||||||
3 | CBRmullen burst strength,kN | 1.1 | 1.5 | 1.9 | 2.2 | 2.5 | 2.8 | 3.0 | 3.2 |
4 | tear strength(TD,MD),kN ≥ | 0.15 | 0.25 | 0.32 | 0.40 | 0.48 | 0.56 | 0.62 | 0.70 |
5 | hydraulic pressure ,Mpa | see the table below | |||||||
6 | peel strength ,N/cm ≥ | 6 | |||||||
7 | vertical permeability coefficient ,cm/s | according to design or contract request | |||||||
8 | width variation ,% | -1.0 |
Item | Thickness | ||||||||
0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 1.0 | ||
hydraulic pressure , Mpa ≥ |
one cloth and one membrane | 0.4 | 0.5 | 0.6 | 0.8 | 1.0 | 1.2 | 1.4 | 1.6 |
two cloths and one membrane | 0.5 | 0.6 | 0.8 | 1.0 | 1.2 | 1.4 | 1.6 | 1.8 |