Dräneringskompositer

Dräneringskompositer, also known as drainage composites or geocomposite drains, are engineered materials designed to facilitate fluid or gas flow through a porous matrix. Typically, they consist of a core material, often a geonet or a three-dimensional spacer fabric, encapsulated between one or more geotextiles. The geonet or fabric provides a void space for fluid transmission, while the geotextiles act as filters, preventing soil particles or other fine materials from clogging the drainage path.

These materials are widely used in civil engineering and construction projects to manage water and other liquids. Common applications include subsurface drainage systems for roads, railways, and building foundations, where they help to prevent hydrostatic pressure buildup and improve soil stability. They are also employed in landfill design for leachate collection and in green roof systems to manage excess water. The effectiveness of a drainage composite relies on its flow capacity, permittivity, and filtration characteristics, which are determined by the type and configuration of its constituent materials. Their ability to provide a lightweight, easy-to-install, and efficient drainage solution makes them a popular alternative to traditional granular drainage layers.