Superior Drainage Performance
3D spacer core design ensures high flow capacity (≥3000L/min/m²)
Dual-layer nonwoven geotextile filtration prevents soil clogging while maintaining permeability
Exceptional Load-Bearing Capacity
Compressive strength up to 500kPa (varies by thickness)
Maintains >90% thickness under long-term loading
Integrated Filtration & Protection
Needle-punched geotextiles (200-400g/m²) on both sides
Retains fine particles while allowing unimpeded water flow
Introduction:
The double-sided geocomposite drainage board is an innovative 3D drainage core + dual-layer geotextile filtration composite material. Manufactured through thermally bonded HDPE/PP polymer core board and premium polyester non-woven geotextiles, it is specifically engineered to address drainage and waterproofing challenges in underground construction, municipal roads, and landscaping projects.
Core Structural Features
3D Drainage Core
Dome-shaped/mesh three-dimensional structure forms continuous drainage channels
8-20mm thickness options with 200-500kPa compressive strength
Vertical permeability coefficient ≥0.5cm/s (ASTM D4716 standard)
Dual-Layer Filtration System
200-400g/m² needle-punched non-woven geotextiles on both sides
Equivalent aperture O90≤0.075mm for effective particle retention
Permittivity ≥0.02s⁻¹ ensures long-term drainage efficiency
Technical Specifications
Parameter | Specification |
Core Material | Virgin HDPE/PP |
Thickness Options | 8/10/12/15/20mm |
Compressive Strength | 200/350/500kPa tiers |
Geotextile Weight | 200/300/400(g/m²) |
Roll Dimensions | 2m x 20m (customizable) |
Key Advantages
1. Enhanced Drainage Capacity:
3000L/min/m² flow rate (5x gravel systems)
Bidirectional drainage design
2. Anti-Clogging Performance:
Graded filtration structure (O90/O95 standards)
Microbial inhibition treatment (optional)
3. Engineering Adaptability:
-40℃ to 80℃ operational range
Chemical resistance (pH2-13)
4. Installation Efficiency:
Self-locking edges for seamless connection
<30kg per roll for manual installation
5. Eco-Economic Benefits:
≥30% recycled content options available
20% cost reduction vs traditional drainage
Typical Applications
Underground Construction: Basement roof drainage, green roofs
Transportation Infrastructure: Tunnel lining drainage, subgrade dewatering
Environmental Engineering: Landfill leachate collection layers
Sponge City Projects: Sunken green space storage/drainage
Quality Assurance
Raw material traceability (batch test reports)
Online thickness monitoring (±0.3mm precision)
Third-party test reports (SGS permeability tests)
15-year material warranty
Technical Support
Free flow rate calculations
On-site installation guidance
Custom joint treatment solutions
Company's Strength:
We are a leading manufacturer of high-performance geosynthetic products, specializing in Double-Sided Geotextile Drainage Boards, geomembranes, and erosion control solutions. With advanced production technology and strict quality control, we provide engineered drainage systems for civil engineering, construction, and environmental protection projects worldwide.
