High-Strength Polyester Filament Nonwoven Geotextile 7-10 oz/yd² (250-350g/m²) for Highway Pavement Interlayer Dam Slope Protection Landfill Liner Protection Tunnel Lining Drainage and Soft Soil Reinforcement
Optimal Pavement Interlayer Performance: Acts as a stress-absorbing and waterproofing layer in highway pavements, extending asphalt overlay service life by 3 to 5 years and delaying reflective cracking.
Accelerated Soft Soil Reinforcement: Provides high tensile strength and low creep to stabilize weak subgrades, cutting foundation preparation time by up to 30% compared to traditional soil replacement.
Superior Filtration & Drainage: Features a 3D continuous filament structure that ensures high permeability for dam slopes and tunnel linings, preventing hydrostatic pressure buildup and erosion.
Extreme Thermal & Chemical Stability: Maintains structural integrity at continuous exposure temperatures up to 446°F (230°C) and resists harsh chemicals, ensuring 50+ years of buried service life.
High Conformability & Installation Efficiency: Offers 40%-80% elongation to seamlessly adapt to uneven terrain, reducing material waste by 15% and speeding up deployment on complex dam and tunnel geometries.
Category:
隐藏域元素占位
- Product Description
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- Commodity name: High-Strength Polyester Filament Nonwoven Geotextile 7-10 oz/yd² (250-350g/m²) for Highway Pavement Interlayer Dam Slope Protection Landfill Liner Protection Tunnel Lining Drainage and Soft Soil Reinforcement
Exceptional Puncture Resistance: Delivers superior CBR and tear strength to protect landfill liners and tunnel membranes, reducing geomembrane replacement costs by up to 25%.<br/> Optimal Pavement Interlayer Performance: Acts as a stress-absorbing and waterproofing layer in highway pavements, extending asphalt overlay service life by 3 to 5 years and delaying reflective cracking.<br/> Accelerated Soft Soil Reinforcement: Provides high tensile strength and low creep to stabilize weak subgrades, cutting foundation preparation time by up to 30% compared to traditional soil replacement.<br/> Superior Filtration & Drainage: Features a 3D continuous filament structure that ensures high permeability for dam slopes and tunnel linings, preventing hydrostatic pressure buildup and erosion.<br/> Extreme Thermal & Chemical Stability: Maintains structural integrity at continuous exposure temperatures up to 446°F (230°C) and resists harsh chemicals, ensuring 50+ years of buried service life.<br/> High Conformability & Installation Efficiency: Offers 40%-80% elongation to seamlessly adapt to uneven terrain, reducing material waste by 15% and speeding up deployment on complex dam and tunnel geometries.
Key Technical Advantages
🧵 Continuous Filament Spunbond Technology: Manufactured from 100% virgin polyester via direct spunbond and needle-punching, creating a highly uniform 3D network with a tensile strength of up to 30 kN/m (2,056 lb/ft) at 350g/m².
🛡️ Unmatched Puncture & Tear Resistance: Engineered with high CBR plunger strength (up to 5.5 kN / 1,236 lbf) and trapezoidal tear strength (up to 0.82 kN / 184 lbf) to withstand sharp aggregate and protect underlying waterproof membranes.
💧 Optimized Hydraulic Conductivity: Designed with a wide, tortuous pore structure that provides excellent cross-plane permeability and in-plane drainage, effectively retaining soil while preventing pore water pressure accumulation.
🔥 High-Temperature Asphalt Compatibility: Thermally stable up to 446°F (230°C) with a melting point of approx. 482°F (250°C), making it perfectly suited for hot-mix asphalt pavement interlayers without melting or degrading.
⚙️ Low Creep & Long-Term Dimensional Stability: Exhibits minimal deformation under sustained heavy loads, ensuring that its reinforcement and separation functions remain fully effective over the decades-long design life of critical infrastructure.
🌍 Superior Chemical & Biological Resistance: Highly inert to soil acids, alkalis, and biological degradation, guaranteeing reliable performance in aggressive environments like landfills and marine soft soil conditions.
Basic Info.
Technical Specifications
Application Solutions🛣️ Highway Pavement Interlayer
Challenge: Existing cracks in old pavements reflect through new asphalt overlays due to thermal cycling and traffic loads, leading to premature failure and water infiltration.
Solution: Installed as a stress-absorbing interlayer (SAMI), the 7-10 oz/yd² (250-350g/m²) geotextile absorbs tensile stresses and acts as a waterproofing barrier when saturated with asphalt tack coat, significantly delaying reflective cracking.
⛰️ Dam Slope Protection
Challenge: Seepage forces and surface runoff can erode the soil beneath riprap or concrete armor, causing slope instability and potential structural failure.
Solution: Placed beneath the armor layer, the geotextile acts as a highly efficient filter. It retains fine soil particles while allowing pore water to drain freely, preventing internal erosion and ensuring long-term slope stability.
🗑️ Landfill Liner Protection
Challenge: Sharp rocks and debris in the subgrade can puncture the critical HDPE geomembrane liner during installation or under waste load, leading to catastrophic groundwater contamination.
Solution: Used as a protective cushion layer above and below the geomembrane, its high puncture and CBR strength absorbs localized stresses, safeguarding the liner's integrity throughout the landfill's lifecycle.
🚇 Tunnel Lining Drainage
Challenge: Groundwater pressure behind tunnel linings can cause leaks, structural damage, and freeze-thaw deterioration in cold climates.
Solution: Positioned between the rock face and the primary lining, the geotextile acts as a drainage medium and protective filter. It channels seepage water to drainage pipes while preventing fine particles from clogging the system.
🏗️ Soft Soil Reinforcement
Challenge: Constructing roads or embankments over weak, compressible soils leads to excessive settlement, bearing capacity failure, and costly soil replacement.
Solution: Placed at the base of the embankment, the high-tensile geotextile provides lateral confinement and distributes loads over a wider area. This improves bearing capacity, reduces differential settlement, and minimizes the need for expensive soil excavation.
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