Plastic Blind Drain / High-Performance Geocomposite Drainage Core

High-Efficiency Drainage Performance

The three-dimensional polymer core creates a continuous drainage network with high void capacity, allowing water to be collected and discharged efficiently. Compared with traditional gravel drainage systems, Plastic Blind Drain provides stable drainage performance while requiring less material and installation effort.

High Compressive Strength and Long-Term Durability

The rigid polymer core is designed to withstand long-term static and dynamic loads from surrounding soil and structures while maintaining its drainage capacity. Its excellent resistance to chemical and biological degradation helps ensure reliable performance in demanding environments.

Flexible Design and System Integration

Plastic Blind Drain can be customized according to project requirements, including core shape, stiffness, roll or sheet format, and geotextile filter selection. It can also be combined with other geosynthetic materials, such as geomembranes, to create integrated drainage and protection systems.

Cost-Effective and Sustainable Solution

By reducing the demand for natural aggregates such as gravel, Plastic Blind Drain helps lower material transportation requirements and construction impacts. Its lightweight design, easy installation, and long service life contribute to reduced maintenance costs and improved overall project value.

Road & Railway Subgrade Drainage

For road and railway projects, rectangular drainage cores (40mm height) wrapped with nonwoven geotextile are commonly installed along the sides or beneath the subgrade. The system collects and redirects groundwater, reduces moisture accumulation, prevents capillary rise, and helps improve pavement stability and service life.

Tunnel and Underground Structure Drainage

Sheet-type drainage cores (8mm thickness) laminated with nonwoven geotextile are used behind retaining walls or between primary and secondary tunnel linings. They provide continuous drainage channels, reduce hydrostatic pressure, and protect underground structures from water-related damage.

Landfill and Environmental Protection Engineering

For landfill applications, high-compression rectangular drainage cores with compression strength ≥500 kPa are designed for demanding conditions. Wrapped with nonwoven geotextile, they are used in leachate collection systems and gas drainage layers to maintain efficient fluid collection and long-term system performance.

Sports Field and Green Roof Drainage

Sheet-type drainage cores (10–20mm thickness) with filter layers are installed beneath artificial turf, sports surfaces, or planting media. They quickly remove excess water, prevent waterlogging, and support healthier surface conditions.

Agricultural and Landscape Drainage

Circular drainage cores (Ø50mm) wrapped with nonwoven geotextile are suitable for farmland, gardens, and landscape areas with poor drainage conditions. Installed underground, they help remove excess water, improve soil conditions, and create a more stable growing environment.