Composite Drainage Net

Product Overview

A composite drainage net is a high-performance geosynthetic material designed for efficient water drainage and soil stabilization. It consists of a three-dimensional polymer drainage core bonded with geotextile filters on one or both sides, providing superior flow capacity while preventing soil clogging.

Key Features

1. High Drainage Capacity

• Flow Rate: 10-50L/min/m (depending on core design)

• Transmissivity: ≥5×10⁻⁴ m²/s (ASTM D4716)

2. Soil Retention

• Filtration Efficiency: O₉₀ = 0.1-0.3mm (retains fine particles while allowing water passage)

• Clog Resistance: Maintains >90% permeability after 10,000 loading cycles

3. Structural Benefits

• Compression Resistance: Withstands 200-500kPa loads without deformation

• Tensile Strength: 10-25kN/m (MD/TD)

Technical Specifications

Installation Guidelines

1. Subgrade Preparation

• Achieve 95% compaction (Standard Proctor)

• Remove sharp objects >6mm

2. Deployment

• Unroll with machine direction aligned to water flow

• Overlap edges by 300mm (minimum)

3. Connection Methods

• Thermal Bonding: 400-450°C for HDPE cores

• Mechanical Fixing: Stainless steel staples @ 1m intervals

Performance Data

▸ Service Life: 25+ years (buried)
▸ Hydraulic Efficiency: 3-5x faster drainage vs. granular layers
▸ Cost Savings: 40-60% reduction vs. traditional stone drains

Applications

✔ Landfill Drainage: Leachate collection systems
✔ Roadway Bases: Subsurface water management
✔ Green Roofs: Lightweight drainage layer
✔ Retaining Walls: Backfill drainage

Standards Compliance

• ASTM D7273: Drainage core testing

• EN 13252: Geosynthetic barrier applications

• GRI GC8: Composite drain specifications

Title: "Composite Drainage Nets: Advanced Water Management Solutions for Civil Engineering"

Sustainable Advantages:
◉ Material Efficiency: 1m² replaces 300kg of aggregate
◉ Recyclability: HDPE cores 100% recyclable
◉ Carbon Footprint: 70% lower than stone drainage systems

Quality Assurance:

• Factory pre-production testing (per roll)

• On-site seam strength verification

• Long-term performance monitoring available