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What is Geomembrane?
Geomembranes are geosynthetics that provide a barrier function to protect the environment and retain liquids and gases such as water, soil and air.
Geomembrane Types
There are different geomembrane types according to the area of use and needs.
Since geomembranes have a wide range of uses, they should be selected according to their properties.
HDPE membrane: HDPE geomembrane, which is mainly used in solid waste facilities and artificial pond applications, can also be used in foundation and curtain insulation and terrace applications. However, since it has a rigid structure, it may not be preferred in insulation works that require detailed application.
HDPE membrane thicknesses can be produced between 1 mm and 3 mm.
HDPE membrane dimensions; width 6 m length 50-100 m is produced.
VLDPE membrane: It is a type of geomembrane with properties between HDPE membrane and PVC membrane.
VLDPE membrane dimensions; width 2 m length 50 m is produced.
VLDPE membrane thicknesses can be produced between 1 mm and 3 mm.
PVC membrane: PVC, which provides convenience in detail solutions due to its soft and functional properties, is mainly used in tunnel insulation applications and can also be preferred in construction foundation and curtain insulation, terrace insulation (must be UV additive), artificial pond applications and artificial pond applications.
PVC membrane thicknesses can be produced between 1 mm and 3 mm.
PVC membrane dimensions; width 2.10 m and length 20-25 m are produced.
Reinforced PVC membrane: In cases where more strength than homogeneous PVC membrane is required, carbon reinforcement yarns are used especially in open terrace insulation applications to reduce the effects of PVC such as cracking and breaking in resistance to the sun. It can also be preferred in artificial pond applications, ornamental pools and foundation curtain insulation.
Reinforced PVC membrane thicknesses can be produced between 0.6 mm and 2 mm.
Reinforced PVC membrane dimensions; width 2m-3m length 20-100 m are produced.
EPDM membrane: It is applied in open and closed terrace roof applications, insulation of construction foundations and curtain walls, coating of artificial ponds and agricultural irrigation pools, ornamental pools, insulation of composite facades. This type of membrane, which is vulcanized thanks to its carbon content, can also be used in places that require detailed solutions thanks to its flexible structure in situations where direct exposure is required thanks to its sun resistance.
EPDM membrane thicknesses can be produced between 0.5 mm and 2 mm.
EPDM membrane dimensions; width 1.25m-1.5m length 20-50 m are produced.
TPO membrane: It is preferred in open terrace insulations thanks to its certificate of applicability in green roofs, solar resistance and carbon reinforcement structure that increases strength.
TPO membrane thicknesses can be produced between 1.2 mm and 2 mm.
TPO membrane dimensions; width 2.10m and length 25 m are produced.
ECB membrane: It is generally preferred for foundation insulation in oil wells, where there is exposure to oil.
ECB membrane thicknesses can be produced between 1.5 mm and 2 mm.
ECB membrane dimensions; width 2.10m and length 20m are produced.
Sodium bentonite membrane: It is an indispensable membrane type for foundation and curtain waterproofing applications.
Sodium bentonite membrane is determined by kilogram rather than thickness. While it is produced between 4500 grams and 6500 grams, average thicknesses; It can be produced between 5.0 mm and 7.5 mm.
Sodium bentonite membrane dimensions; width 2.10 m length 20 m or width 2 m length 25 m.
Bituminous membrane: It is a type of membrane preferred in insulation applications of foundations and curtains of constructions and terrace insulation applications. Double or triple layer applications can also be made. Preferring proof membrane instead of bitumen membrane will make insulation applications safer.
Bituminous membrane dimensions; It is produced as 1 m in width and 10 meters in length. Proof membrane lengths may vary according to thickness.
Bituminous membrane thicknesses are produced as 2 mm, 3 mm and 4 mm sandy according to TSE standards, while products of desired thickness and desired kilograms can be found in the market outside TSE standards.
Why Geomembrane is Used?
The purpose of using geomembranes is to act as an impermeability barrier by providing water tightness.
How is Geomembrane Applied?
All synthetic covers, except bituminous membrane, are applied with a thermal hot heat source that gives dry air.
What are the Geomembrane Types Used in Turkey?
EPDM membrane, PVC membrane, Polyester reinforced membrane, TPO (FPO) membrane, HDPE membrane, VLDPE membrane, ECB membrane and bituminous membrane. There are also 9 types of GCL synthetic clay membranes, including sodium bentonite membrane.
Where is Geomembrane Applied?
Solid waste facilities Municipal garbage facilities Mining slurry (sludge) sites and dilution processes Petrochemical plants Biogas plants Agricultural irrigation pond applications Irrigation canals Artificial pond construction (State water works pond projects) Roof terrace insulation applications Ground Applications Pipes and Canals Storage Areas Sports Fields Slopes Hydraulic Structures Coastal Protection Structures Dams Port Constructions Artificial Ponds Agricultural Irrigation Ponds Swimming Pools Ornamental Ponds Irrigation Canals Building Constructions Foundations Base Concretes Terrace Roofs Garden Roofs Road Constructions Highways Constructions Railways Constructions Airports Constructions Parking Areas Drainage and Filtration Drainage Pipes Drainage Canals Surface Drainage Building Drainage Garbage and Waste Storage Areas Environmental Water Treatment Systems Garbage and Waste Sites Waste Water Ponds Manure Storage Manure Ponds
Which Geomembrane is Preferred in Biogas Plants?
The type of geomembrane used in biogas plants is HDPE membrane. Because where methane gas retention is a priority, HDPE geomembranes are the best choice for use. Its superior mechanical resistance, UV resistance, stress cracking and multiaxial fracture resistance properties, which provide flexibility against uplift and stretching, allow this geomembrane to absorb even the most extreme movements present in biogas containment applications.
Which Geomembrane is Preferred for Agricultural Irrigation Pools & Irrigation Canals and Artificial Ponds?
Irrigation pond geomembranes in accordance with TS EN 13361 standard are EPDM membrane, PVC membrane and HDPE membrane.
Which Geomembrane is Preferred for Tunnel Insulations?
For this insulation, tunnel type 2 mm PVC membrane or tunnel type 3 mm PVC membrane with signal layer is generally preferred.
Which Geomembrane is Preferred for Drinking Water?
Drinking water certified membranes should be preferred. Products without a certificate are not suitable for human health. PVC membranes with drinking water certificate stand out in this regard.
Which Geomembrane is Preferred for Reinforced Concrete Pool Insulation?
Reinforced concrete structures tend to crack over time due to the laws of cement and physics. In order to prevent this, using crystallized concrete admixture while pouring concrete will both increase the concrete strength and protect your structures from corrosion, making them safer and longer lasting. If such situations are delayed at the time of construction, negative isolation methods (crystallized admixture powder, crystallized or gel injection, polyurethane injection solutions) can be applied in reinforced concrete pools or geomembrane coating applications can be used. PVC membrane, reinforced PVC membrane, EPDM membrane can be preferred here.
Which Geomembrane is Preferred in Foundation Curtain Insulations?
Bituminous membrane is generally used in our country for foundation insulation and curtain insulation. However, it is not recommended to use this membrane type due to its unsuitability in hot and cold differences. Due to the problems, it does not protect the structure in waterproofing, although applications are made in 2 layers on top of each other and 3 layers on top of each other upside down. For this reason, applying EPDM membrane, PVC membrane, reinforced PVC membrane, HDPE membrane and ECB membrane instead will provide more secure insulation in your building.
Which Geomembrane is Preferred for Roof Terrace Insulation?
The most preferred product for terrace roof insulation is TPO/FPO membrane. This geomembrane type, which stands out thanks to its reinforced structure and UV resistance, is followed by reinforced PVC membranes. Then, depending on the budget, EPDM, homogeneous/signal layer PVC and HDPE can be listed.
Which Geomembrane is Preferred in Solid Waste Facilities?
HDPE membrane, which stands out with its resistance to chemicals, is generally preferred in municipal landfills and mine reclamation works. Sometimes LLDPE membrane can also be used in solid waste sites. Geomembrane Synthetic Covers
These are waterproofing covers produced by processing powder or granular thermoplastic or thermoset polymers with different production techniques. Synthetic covers vary depending on the type of polymer used in cover production, its chemical structure and production technology. Geomembrane Synthetic Cover Types
✓ EPDM Membrane ✓ Felt EPDM Membrane ✓ PVC Membrane ✓ ECB Membrane ✓ TPO Membrane ✓ FPO Membrane ✓ HDPE Membrane ✓ Sodium Bentonite Membrane ✓ VLDPE Membrane ✓ Bituminous Membrane Pool & Pond & Canal Geomembrane Applications
