Geomembrane
Geomembrane: The Ultimate Impermeable Barrier
Engineered for Perfection in Environmental Containment
Definition & Composition
A continuous polymeric sheet (HDPE/LLDPE/EVA/PVC) manufactured via extrusion, calendering, or blown-film processes. Thickness:
0.2~3.0 mm
. Core value lies in ultra-low permeability (
≤10⁻¹³ cm/s
), functioning as an "impermeable shield" for critical infrastructure.
Jiantong's Engineering-Grade Assurance
Smart Manufacturing
:
▶ German Reifenhäuser triple-layer co-extrusion lines, thickness tolerance
<±3%
▶ In-line pinhole detection (15kV/mm), defect rate
<0.01%
Global Certifications
:
▶ GB/T 17643 (CN), GRI GM13 (US), EN 13361 (EU)
▶ Potable water compliance (WRAS/NSF 61)
5 Core Performance Attributes
- Absolute Impermeability
- Water vapor transmission
<0.01 g/m²/day
(ASTM E96),
10⁷ times
more effective than compacted clay
- Chemical Fortress Resistance
- Withstands pH 1-14, hydrocarbons, heavy metal ions (validated in MSW leachate environments)
- Extreme Environmental Adaptability
- Service temperature
-70℃ to 80℃
; HDPE resists freeze-thaw, EVA accommodates differential settlement
- Century-Scale Durability
- Dual UV/Oxo-resistance formulations, design life
≥100 years
(GRI GM13 accelerated aging)
- Mechanical Resilience
- Elongation at break
>700%
(EVA), puncture resistance
>500 N
(ASTM D4833)
products
EVA Geomembrane
High-density polyethylene (HDPE) geomembrane
Column point geotextile membrane
Geomembrane
Rough surface HDPE anti-seepage membrane
