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Drainage Geonet

Drainage Geonet

Drainage geonet is a versatile, lightweight, and economical geosynthetic construction product that offers numerous benefits. Geonets transport water away from structures, preventing damage and increasing the longevity of constructions.

US Fabrics’ geonets feature an extruded three dimensional bi-planar core designed to withstand high compressive pressures unique to environmental landfill and heavy highway markets. In addition, it can be heat laminated to a nonwoven polypropylene geotextile on one or both sides.



Geonets help to improve drainage by creating pathways that allow water to flow through the material, preventing soil buildup and reducing hydrostatic pressure. Their grid-like structure also helps to increase permeability, allowing for faster movement of water and a more effective distribution of hydraulic loads.

Erosion Control

Due to their excellent tensile strength, geonets are effective erosion control products that can prevent the deformation and degradation of embankments, slopes, and other surfaces. They can also be used to prevent scour at landfills, mine tailings, and construction sites.

Filtration Efficiency

Thanks to their composite designs or integrated geotextiles, many drainage geocomposites feature excellent filtration properties. They can filter fine soil particles, preventing them from migrating through the system and clogging it. This is especially important in applications such as landfill leachate collection, subsurface drainage, and erosion control.

Heavy Load Performance

Depending on their configuration, some drainage geocomposites are designed to withstand high compressive stresses that may occur in the environmental landfill or heavy highway market. This makes them ideal for landfill liner cells, leak location in double-lined systems, landfill caps for drainage and methane gas collection, and pavement drainage systems.

Another popular type of drainage geocomposite consists of a heavy-duty HDPE geonet drainage core with its ridges heat fused to a layer of nonwoven filter fabric. This combination provides a cost-effective solution for projects with regulated factor of safety requirements for hydraulic flow capacity and transmissivity calculations.


Drainage geonet is a permeable grid-like geosynthetic material Drainage geonet that is used in a variety of construction projects. It is often bonded with geotextiles on one or both sides to form drainage geocomposites. These products are designed to provide high-capacity in-plane drainage for liquids and gases. In addition, they can confine loose materials to prevent lateral flow and enhance the stability of various construction elements.

Geonets are ideal for a variety of civil and environmental applications including road construction, landfill leachate collection, erosion control and more. They are also useful for stabilizing slopes and embankments. These materials can be used to improve ground strength and help reduce construction costs.

There are two primary types of geonets: biplanar and tri-planar. Biplanar geonets are flat on both sides and are commonly used in drainage systems, retaining walls, and other infrastructure projects. Tri-planar geonets feature a two layer structure of parallel ribs with a small cross-section area and thick vertical ribs that have a larger cross-section area. This design provides more structural integrity than biplanar geonets and allows for a greater degree of fluid flow.

Composite geonets are essential in landfills and waste management, allowing for more effective leachate collection and preservation of the surrounding environment. They are also useful in road construction, improving the durability of roadways and reducing maintenance costs. Drainage geonets also help prevent soil erosion and protect waterproofing membranes. This is important as nearly 74% of the world’s arid areas are at moderate or severe risk of desertification.


Drainage geonets are an easy and environmentally conscious alternative to aggregate drains. They are light weight and factory controlled for easy installation. In addition, they take up less space than a layer of aggregate, and are more durable. Unlike other aggregates, geonets are designed to effectively transmit fluids and gasses.

A three dimensional bi-planar geonet has parallel sets of ribs that overlap and intersect with each other to create a drainage structure. The ribs allow for in-plane drainage of liquids and gases under high loads, making them ideal for landfill leachate collection, methane gas venting and pavement drainage.

AGRU America’s geonets have superior chemical resistance and can withstand the high compressive pressures found in environmental landfills and heavy highway construction. Our drainage composites are comprised of an extruded high-density polyethylene geonet with a non-woven filter fabric heat fused to its ridges. The filter fabric retains soil or sand particles and allows filtered water to pass. This fusion process makes the product resistant to layer separation and minimizes the potential for failure planes caused by the fabric portion of the composite sliding on the geonet’s ridges.

StrataDrain, a high flow geonet-geotextile drainage composite, is the solution for Sika Sarnafil waterproofing systems. It can be installed as a sheet interceptor drain behind retaining walls or as an internal interceptor drain for reinforced steep slopes. This prefabricated drainage composite includes a geonet laminated on one side and an 8 oz/sy, environmental grade, needle-punched nonwoven geotextile on the other.


Drainage geonets have a unique crisscross pattern that efficiently directs water flow. They also have a cover layer to prevent soil and sediment from clogging Waterproof Membrane Geosynthetic Clay Liner the drainage system, which helps minimize maintenance costs. Furthermore, they are designed to withstand the stress of construction activities and other environmental factors. This ensures durability and longevity, and reduces the need for costly repairs and replacements.

This is a special geosynthetic material that helps manage water in civil engineering and construction projects. It is a composite of a geonet layer sandwiched between two layers of non-woven geotextiles. The crisscross design of the geonet facilitates efficient water flow, preventing the build-up of hydrostatic pressure. In addition, the filtering layers help prevent soil and sediment from clogging the geonet layer.

The geonet is a mesh structure that consists of overlapping threads or bands of varying width (from 3 to 15 mm). These are joined together permanently at a permanent angle, usually 60-90 degrees. They are made either by press forming of high-strength polyethylene or welding the threads/bands. Drainage geocomposites are also available, which have a layer of non-woven geotextile material coated on one or both sides of the geonet.

Unlike a geogrid, which is used for reinforcement, a geonet is mainly used for drainage purposes. It is often used to improve the overall performance of various building and civil engineering structures, including roads, railways, airport runways, and dams. It can also be used as a barrier to prevent the leakage of water and gases under high load conditions.