Drainage Composites Protect Membrane Waterproofing
Drainage composites protect waterproofing membranes by collecting and transporting moisture away from the area. This makes them an essential component for roofing, green roofs, basement subfloors and retaining walls.
Composite drainage net is a new type of drainage geotechnical material using HDPE as raw material and processing by special extrusion molding process. Its inner fillet has high rigidity and arranged longitudinally to form a dewatering channel, so it can keep good drainage performance even under high load.
Three-Dimensional Structure
A drainage composite is a geosynthetic product consisting of multiple layers that work together to manage moisture in civil engineering and construction applications. The primary component of a drainage composite is a three-dimensional structure known as the core. The core, typically made of a geonet or geospacer, provides the primary pathways for water to flow through the system. The core is surrounded by a filter or protection layer, which prevents soil particles from clogging the core while allowing water to pass through freely. The cover or protection layer is often made of non-woven geotextile fabric or a geocomposite fabric.
The drainage capacity of a three-dimensional composites drainage network is vastly improved when geotextiles are placed on both sides of the geonet, providing separation and filtration functions. Such drainage geocomposites are regularly used in landfill applications for leachate collection layers and cover systems as well as in building foundations to collect vapor or liquid that can migrate from below a concrete slab.
A three-dimensional drainage composite can also be used in road engineering to help relive hydrostatic pressure against the subgrade. Its directional flow allows the aggregate base to enter the three-dimensional drainage core but is prevented from entering the geotextile that covers it, limiting the movement of the aggregate base and improving subgrade stability. This enables it to act as a dewatering system for the subgrade, helping to protect it from surface and side slope erosion and prolonging its service life.
High Compression Load
Drainage composites are easy-to-install, factory-assured replacements for traditional granular layers. They combine a dimple core with a nonwoven geotextile fabric on both sides and can withstand high compressive loads. The dimple core is manufactured from a polypropylene sheet that has been cuspated under heat and pressure. The core is bonded to the fabric, which acts as a filter and separator.
The drainage composites can be used in a variety of engineering composites drainage network applications. They can prevent soil erosion by guiding water to a drainage outlet. They also help relive hydrostatic pressure against subterranean surfaces. This can protect the foundation soil from damage and maintain surface stability.
These materials are ideal for use in road construction, greening engineering, and other areas where drainage is a critical aspect of the project. They can reduce the amount of gravel and stones needed to provide a strong support layer for aggregate base, and they also help improve the load-bearing capacity of the foundation. Additionally, the drainage composites can be used as a dewatering geotechnical material by intercepting leachate and conveying it to a drainage outlet. This is a cost-effective solution for landfill liner projects and pond liners. The drainage composites can also be used in a wide range of industrial applications, including mining and tunneling. They can also be used in wastewater treatment systems and environmental protection equipment.
Good Hydraulic Conductivity
Drainage composites are designed to prevent the buildup of excess moisture within soil and structures. They use a core structure that’s made of material like geonet, geospacer, or a geocomposite fabric that serves as the primary drainage pathway for water. The core is surrounded by a filter or protection layer that keeps soil particles from clogging the core while still allowing water to pass through easily.
The unique three-dimensional design of the composites drainage network is a significant advantage over other geosynthetic products. Its ability to handle high compression loads and maintain a considerable thickness during the entire process of use make it ideal for landfill projects, highway subgrade and pavement drainage, railways, tunnel drainage, underground structure drainage, as well as retaining wall back drainage.
Numerical simulations were used to determine the performance of a three-way drainage buck under different parameters, including head height, initial support, and secondary lining. The results show that the performance of a three-way drainage system is significantly better than that of conventional French drains.
A drainage composite is a new type of dewatering geosynthetic that can be used to replace sand, stone and gravel in various applications. It consists of a HDPE geonet heat-bonded on one or both sides with nonwoven needle punched geotextiles. Its pore maintenance system can discharge groundwater quickly, block capillary water during construction, and protect the structure from frost heave or salt migration.
Long Service Life
Drainage composites offer a very long service life due to their superior material composition. The core is molded from high-density polyethylene (HDPE) with anti-aging additives, and is then wrapped in non-woven geotextile fabric, which protects the core from soil fines that can clog drainage lines. The HDPE drainage composite also has good corrosion resistance and acid-alkali resistance, which ensures it will withstand a wide range of environmental conditions for many years.
Unlike traditional French Drains, which require a very wide trench and stone enveloped in a geotextile fabric, Team EJP’s drainage composite product line can be installed in a piscina de geomembrana narrower trench. The product is then embedded in washed concrete sand, which provides a filter layer to prevent soil fines from clogging the geotextile surface of the drainage composite. This eliminates the need for a stone aggregate, and dramatically reduces installation time.
Three dimensional composite drainage network is a new type of geosynthetic materials which is formed by a molded three-dimensional geonet core with needle punched non-woven geotextiles stuck on both sides. The combination of drainage, filtration and protection function makes it a more effective alternative to gravel in drainage applications. It is widely used in landfill site drainage, highway subgrade and pavement drainage, railway system drainage, tunnel drainage and underground structure drainage. It is also ideal for back drainage behind retaining walls, sports field and garden drainage.