Drainage Board with holes is made from high density polyethylene plastic and it is a kind of geomembrane with dimples on the surface. The dimples can be in cylinder and semi cone shape. It could also be coated by non woven geotextile. The liquid and gas can go through freely between dimples.
Item | Performance Index |
Material | HDPE |
Height | 8 - 60mm |
Width | 1 / 2 / 3m |
Length | 10-15m |
Weight | 500 - 2000g/m² |
Color | Green / White / Blue / Black |
The typical components of a composite drainage board may include:
1.Geotextile Fabric: This is a permeable textile material that allows water to pass through while preventing soil or other particles from clogging the drainage system. The geotextile fabric acts as a filter to ensure proper water flow.
2.Drainage Core: This layer is usually made of a plastic material, such as high-density polyethylene (HDPE), and features a network of dimples or studs to create channels for water to flow through. The drainage core provides structural support and helps to distribute the weight of the overlying materials.
3.Protection Layer: Sometimes, a protective layer such as a non-woven geotextile fabric or a geocomposite is added on top of the drainage core to shield it from damage during installation and to provide additional filtration.
Composite drainage boards offer several advantages, including improved drainage efficiency, reduced soil erosion, enhanced stability of structures, and better management of water runoff. They are often used in conjunction with other drainage systems, such as perforated pipes, to create comprehensive water management solutions for various construction projects.
Item | Composite Drainage Net | Composite Drainage Board | ||||
TRA252 | TRA250 | TRB254 | TRB256 | |||
Composite Material | Mass Per Unit(g/gsm) | ≥1400 | ≥1200 | ≥1600 | ≥1800 | |
Thickness(mm) | ≥7.0 | ≥6.0 | ≥8.0 | ≥8.0 | ||
Tensile Strength(KN/m) | MD | ≥18.0 | ≥16.0 | ≥18.0 | ≥18.0 | |
CD | ≥10.0 | |||||
Hydraulic Conductivity(m2/s) | ≥1.2*10-3 | |||||
Peel Strength(KN/M) | Mesh Core and Geotextile | ≥0.25 | ||||
Mesh Core and Composite Geomembrane | - | ≥0.3 | ||||
Mesh Core | Thickness(mm) | ≥5.0 | ||||
Tensile Strength at Longitudinal and Transverse(KN/M) | ≥15.0 | |||||
Geotextile | Mass Per Unit(g/gsm) | ≥200 | ||||
Tensile Strength at Longitudinal (KN/M) | ≥6.0 | |||||
Permeability Coefficient(cm/s) | ≥0.3 | |||||
Composite Geomembrane | Mass Per Unit(g/gsm) | - | ≥400 | ≥600 | ||
Tensile Strength at Longitudinal (KN/M) | ≥4.0 | |||||
Resistant to Hydrostatic Pressure(MPa) | - | ≥0.10 | ≥0.20 |






2Municipal engineering: airport, road embankment, subway, tunnel, landfill.









Our factory has been established for over 16 years ,and has its own trading department. So we have the competitive price with best quality.
How does your factory carry out quality control?
Quality Control is one of our most important link. All of the product will be fully processed and strictly tested before packaging for shipment.
Can I get samples for checking the quality?
We can provide free samples. But you need to pay the freight. After you place the order, we will refund the single freight of the sample.
What's your MOQ?
Our MOQ is usually 1000sqm per color.
What's your delivery time?
It's about 14 days after we received the deposit.
What's your payment terms?
TT (TT 30% as deposit,and 70% balance payment at sight of BL copy)or LC at sight.
Can I visit your factory?
We always welcome you to visit our factory. Transportation is very convenient in China. You can take high-speed rail or plane, and we will pick you up in advance.