Shandong Longxiang New Materials Co., Ltd.
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1.5mm EVA Geomembrane Waterproofing Board for Tunnel & Subway Lining
Classification :
PRODUCT DETAILS
1. Product Overview
The Premier Choice for Underground Tunnel Waterproofing. Specifically engineered for the demanding environment of underground construction, our 1.5mm EVA Geomembrane (Waterproofing Board) is the industry standard for NATM (New Austrian Tunneling Method) and TBM tunnel projects. Unlike rigid liners, our EVA board offers exceptional softness and tensile strength, allowing for easy "hanging" installation on arched tunnel surfaces without tearing. It provides a permanent, impermeable barrier for subways, railway tunnels, and highway tunnels.
2. Key Features
Extreme Flexibility & Hangability: The high Vinyl Acetate content ensures the board creates a snug fit against irregular shotcrete surfaces, minimizing void space behind the liner.
Easy Overhead Welding: EVA has a wider welding temperature window than HDPE, making overhead hot-wedge welding safer and more reliable for workers.
Plasticizer-Free (Eco-Friendly): Unlike PVC, EVA contains no plasticizers. It will not shrink, become brittle, or migrate chemicals over time, ensuring a 100-year design life.
Chemical Resistance: Resists alkaline groundwater and cement leachate, protecting the structural concrete shell.
3. Technical Specifications
Property | Test Method | Unit | Typical Value |
|---|---|---|---|
Material Composition | - | - | Ethylene Vinyl Acetate (EVA) Copolymer |
Nominal Thickness | ASTM D5199 | mm | 1.2 / 1.5 / 2.0 |
Tensile Strength (Yield) | ASTM D638 | MPa | ≥ 16 |
Elongation at Break | ASTM D638 | % | ≥ 550% |
Tear Strength | ASTM D1004 | KN/m | ≥ 60 |
Puncture Resistance | ASTM D4833 | N | ≥ 450 |
Low Temp. Bend | ASTM D2136 | °C | No cracks at -35°C |
Fire Resistance | DIN 4102 | Class | B2 (Flammability upon request) |
4. Applications
Railway & Metro Tunnels: Primary waterproofing layer between shotcrete and final lining.
Utility Tunnels: Underground cable and pipe galleries.
Mining Shafts: Moisture protection for ventilation shafts.
Main Products
PROJECT CASES
APPLICATION AREAS
Geotechnical material series are widely used in various fields such as highways, railways, tunnels, water conservancy of reservoirs and canals, artificial lakes, environmental protection, sewage treatment, landfills, anti-seepage of tailings reservoir areas, and livestock breeding.
Water conservancy projects
Geosynthetics play a vital role in water conservancy projects such as dams and reservoirs, canals and channels, and riverbank protection.
Breeding industry
In the aquaculture industry, geosynthetics such as geomembranes and geotextiles can be used to create healthy aquaculture ponds, ensure stable water quality and reduce water resource consumption. All geosynthetics provided by can be customized according to customer needs.
Road construction
The geosynthetics such as geomembranes, geotextiles, geogrids, geocells, etc. provided by play an irreplaceable role from roadbed treatment to pavement protection, from drainage systems to environmental protection isolation.
Agricultural
In agricultural irrigation and biogas digester scenarios, geosynthetics such as geomembranes and geotextiles play a key role due to their respective characteristics. The products provided by Factory meet the standards and can be customized according to requirements.
Coastal Engineering
In coastal engineering, geosynthetics such as geobags, cement blankets, and geogrids play an important role in coastal engineering from coastal protection, structural reinforcement to slope stability, and effectively respond to the challenges brought by the complex geology and environment of coastal areas.
Environmental Protection
Factory provides customers with high-standard geosynthetics to meet their needs for building landfills.
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Email : longxiang@lxgeosynthetics.com
Add : Room 2416, Building 6, China Resources Landmark Plaza, Lixia District, Jinan City, Shandong, China Province
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