Drainage Board: Made from high-density polyethylene, this geomembrane features dimpled surfaces in cylinder or semi-cone shapes, allowing liquid and gas to flow freely. It can also be coated with non-woven geotextile.
Composite Drainage Board, used in construction and civil engineering, consists of layers for efficient water management, preventing waterlogging in green roofs, retaining walls, underground structures, and landscaping.
Typical composite drainage board components:
1. Geotextile Fabric: A permeable textile that allows water passage while blocking soil to prevent system clogging, acts as a filter for water flow.
2. Drainage Core: Made of plastic like HDPE, featuring dimples or studs to create water channels, providing structural support and weight distribution.
3. Protection Layer: A non-woven geotextile or geocomposite layer may be added for installation protection and enhanced filtration.
Composite boards enhance drainage efficiency, reduce erosion, stabilize structures, and improve water runoff management. They are often paired with systems like perforated pipes for comprehensive solutions.
Frequently Asked Questions
What is a Dimple Drainage Sheet made of?
It is manufactured from High-Density Polyethylene (HDPE) or HDPE PP composite, creating a durable, eco-friendly, and chemically resistant geomembrane with structured dimples.
What are the primary applications of this drainage board?
It is widely applied in civil engineering projects, including electrical engineering, roads, railways, airports, water conservancy projects, green roofs, retaining walls, and underground structures.
How does the composite drainage board manage water?
It works by filtering water through a geotextile fabric layer to prevent soil clogging, directing the filtered water through the dimpled channels of the drainage core, and protecting the structure below from water accumulation.
What specifications are available for height and color?
The standard dimple heights range from 8mm to 20mm. Common colors include black and white, though customer-made specifications are fully supported.
What are the benefits of using an eco-friendly drainage sheet?
It enhances drainage efficiency, effectively reduces erosion, stabilizes structures, and prevents waterlogging, while using materials safe for landscaping and environmental projects.
Can it be used alongside other drainage systems?
Yes, composite drainage boards are frequently paired with systems such as perforated pipes to build comprehensive, high-capacity water drainage and management setups.
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