EVA Geomembrane — Flexible Waterproof Liner for Tunnels, Subways & Underground Projects
Ethylene-vinyl acetate (EVA) geomembrane liners designed for underground waterproofing and special engineering projects. Superior flexibility, 0.8–3.0 mm thickness, factory-direct supply and global delivery.
ASTM/GRI/ISO-referenca
Izravno tvornica
Globalni izvoz
Osnovna svojstva od Geomembrana EVA
EVA geomembrane maintains elongation and shape even at low temperatures, ensuring reliable performance on complex ground surfaces.
EVA liner absorbs strong dynamic impact energy, making it suitable for heavy machinery loads and pressure resistance.
With balanced static and dynamic puncture strength, EVA geomembrane provides durable protection against punctures and mechanical damage.
EVA geomembrane resists acids, alkalis, and certain organic solvents, ensuring long-term chemical durability.
Enhanced with antioxidants, EVA geomembrane offers superior aging resistance and UV stability for outdoor applications.
Performs reliably between -70°C and 80°C, with better performance than PVC and HDPE liners under extreme conditions.
Made without halogens or heavy metal additives, EVA geomembrane is safe, recyclable, and environmentally friendly.
Upoznati Geomembrana EVA
EVA geomembrane is a waterproof liner made from ethylene-vinyl acetate (EVA) material. It combines high flexibility, elasticity, and durability, making it ideal for lining projects.
EVA geomembrane is produced from EVA resin blended with stabilizers and anti-aging additives. This unique formulation gives EVA liners excellent weather, chemical, and UV resistance.
EVA geomembranes are commonly manufactured in thicknesses from 0.5 mm to 3.0 mm. The choice of thickness depends on project design, required durability, and site conditions.
EVA geomembrane is widely used in reservoirs, fish ponds, mining projects, waste landfills, and tunnels. The EVA liner adapts well to uneven ground, ensuring reliable long-term protection.
With proper installation and protection, EVA geomembranes can last 15–25 years. Their resistance to UV, chemicals, and extreme temperatures ensures long-term performance.
Vrste površina i opcije boja of EVA Geomembrane
Surface Type:
Smooth EVA geomembrane – Standard choice for tunnels, basements, and subway waterproofing. Smooth surfaces ensure easy welding and reliable anti-seepage performance.
Color Options:
White EVA geomembrane – Improves visibility inside tunnels and subways, commonly used in underground waterproofing projects.
Gray EVA geomembrane – Popular for basements, foundations, and roof waterproofing.
Black EVA geomembrane – General-purpose waterproof liner for reservoirs and anti-seepage works.
EVA Geomembrane Thickness Guide & Prijave
| Debljina (mm) | Ključne značajke izvedbe | Tipične primjene | Preporučene specifikacije i bilješke |
|---|---|---|---|
| 1,00 mm EVA geomembrane liner |
· High dynamic impact absorption · Wide temperature performance · Medium static puncture protection |
· Subgrade lining for light traffic areas · Agricultural irrigation canals · Municipal stormwater reservoirs |
· Smooth or textured EVA geomembrane · Recommend 10 cm sand cushion or geotextile isolation |
| 1,20 mm EVA geomembrane sheet |
· Enhanced puncture resistance · Excellent crack propagation resistance · Superior chemical and aging durability |
· Medium-size landfill leachate ponds · Sewage treatment basins · Tunnel waterproofing liners |
· Single or double textured surfaces for higher friction · Combine with geotextile for improved stability |
| 1,50 mm EVA waterproof liner |
· High tensile strength & impact resistance · Long-term durability · Excellent root puncture resistance |
· Medium-size landfill capping · Main traffic subgrade channels · External tunnel waterproofing |
· Double textured EVA geomembrane recommended · Seam testing with vacuum or spark detection |
| 2,00 mm Engineering-grade EVA liner |
· Extreme puncture and UV resistance · Service life up to 30 years |
· Hazardous waste containment sites · Large sludge concentration basins · Heavy load traffic subgrade lining |
· Multi-layer composite systems · Automated welding & strict seam testing |
| 2,50–3,00 mm Heavy-duty EVA geomembrane |
· Extreme crack resistance & impact resistance · Superior aging performance · Designed for special engineering |
· Nuclear waste storage facilities · Deep foundation waterproofing · Large industrial tailings dams |
· Installed by professional teams · Service life over 30 years |
EVA Geomembrane Specifications, Ispitivanje i tehnički list
| Vlasništvo | Metoda ispitivanja (ref.) | Typical Performance | Bilješka |
|---|---|---|---|
| Gustoća | ASTM D1505 | 0.92–0.96 g/cm³ | eva geomembrane density, lighter than PVC |
| Tensile Properties (yield & break) | ASTM D6693 | Moderate tensile strength, high elongation | good flexibility & break resistance |
| Otpornost na trganje | ASTM D1004 | Good anti-tear performance | resists crack propagation in thin liners |
| Otpornost na probijanje | ASTM D4833 | Moderate to high, depending on thickness | impact & puncture resistance for waterproofing |
| Chemical Stability | ASTM D543 | Resistant to most mild acids & bases | not as strong as HDPE against strong chemicals |
| UV & Weather Resistance | ASTM G154 | Moderate, requires stabilizers | better than LDPE, lower than HDPE |
| Dimenzijska stabilnost | ASTM D1204 | ±2% | thermal stability under construction conditions |
| Flexibility at Low Temperature | ASTM D746 | Excellent flexibility down to –40℃ | advantage of eva geomembrane over hdpe |
| Service Life | — | 15–25 years (depending on exposure) | suitable for ponds, tunnels, waterproofing liners |
Geomembrana EVA Installation&Welding
Metode zavarivanja
Zavarivanje vrućim zrakom: EVA geomembranes are highly flexible, making them suitable for hot air welding. This ensures smooth seams in applications like tunnels, reservoirs, and basements.
High-Frequency Welding: Especially effective for thin EVA liners (0.5–1.5 mm), providing strong seam bonding with minimal material deformation.
Širina preklapanja: Typically 75–100 mm, smaller than HDPE, since EVA membranes offer excellent flexibility and conform easily to complex structures.
Postupci kontrole kvalitete (CQA)
Probni zavari: Conducted at the start of each workday to confirm correct temperature and pressure for EVA material.
Mapiranje šava: Each welded seam is logged and traced for inspection, especially in waterproofing projects like underground tunnels or basements.
Zapisi: Installation logs should include welding temperature, overlap width, and operator details.
Metode ispitivanja
Non-Destructive Tests (NDT):
Air Channel Test: Applied to double-track hot air seams.
Test vakuumske kutije: Ensures no leakage in critical waterproofing areas.
Destructive Tests (DT):
Guliti & Shear Tests: Carried out on EVA weld samples every 150–300 m² to meet ASTM D6392 requirements.
Compared to HDPE liners, EVA geomembranes are easier to weld, adapt better to irregular foundations, and provide superior flexibility, making them ideal for tunnels, basements, and complex waterproofing projects.
Zašto odabrati WP stručnjak?
Over the years, we have established ourselves among trusted EVA geomembrane manufacturers and global EVA geomembrane distributors. Our focus is on delivering reliable liners that meet critical engineering projects.
- Free Samples of EVA Geomembrane Sheet
- Stručna podrška projektima
- Pouzdano osiguranje kvalitete
- Više od 10 godina iskustva u proizvodnji
- Izravna tvornička opskrba
Osnove od Wholesale EVA Geomembrane
Uključite vrstu projekta (jezerce, odlagalište, rudarstvo, rezervoar), potrebnu debljinu, površinu (glatka / teksturirana), željenu veličinu role i uvjete isporuke (FOB/CIF + luka).
Yes, free EVA geomembrane sheet samples are available for evaluation prior to bulk purchase.
Tipično vrijeme isporuke je 15-25 dana za proizvodnju, plus raspored otpreme ovisno o odredišnoj luci.
Standardna širina role za izvoz je 5,8 m, koji je optimiziran za utovar kontejnera. Veće širine kao npr 7–8 m također su dostupni, ovisno o stvarnim uvjetima utovara kontejnera. Duljina role obično se kreće od 50–150 m, prilagođen debljini. Po potrebi se mogu isporučiti gotove ploče po narudžbi.
The weight of an EVA geomembrane liner is calculated as:
Weight (g/m²) = Thickness (mm) × Density (g/cm³) × 1000
For EVA geomembrane with density 0.92–0.96 g/cm³ (per ASTM D792):
A 1.0 mm EVA liner weighs about 920–960 g/m²
A 1.5 mm EVA liner weighs about 1380–1440 g/m²
A 2.0 mm EVA liner weighs about 1840–1920 g/m²
Kapacitet se izračunava na temelju 40HQ ≈ 25 tona težina utovara. Točan broj role ovisi o debljini i širini role; izračunavamo prema težini obloge po m² i ograničenju težine kontejnera.
Preporučena minimalna narudžba je 5000 m². Budući da je geomembrana glomazna i teška, predlažemo barem jednu 20GP kontejner za učinkovitu otpremu. Također možemo pomoći u konsolidiranje s drugim teretom ako je potrebno.
mi smo a Kineski proizvođač geomembrane, a pošiljke se mogu dogovoriti sa bilo koju veću kinesku luku kao što su Qingdao, Shanghai ili Ningbo.
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