Geotextiles are mainly constructed using polypropylene fibres that are used for several applications such as separation, drainage, filtering, reinforcement or protection. Here at IFG Drake we provide high quality fibres that are used to manufacture needle-punched fabrics which have been used extensively across the globe in a wide variety of construction projects, including road and rail.
In road and rail construction geotextiles are used to control a number of factors. Primarily the materials are used to control particle separation to ensure soil and aggregate materials do not mix. For example, it is common to use geotextiles in road construction when building on a soft or porous surface so that the unsuitable building surface is confined. A geotextile is laid on top of this softer soil and then the aggregate layer can be distributed on top. This is similar in rail construction, where geotextiles are laid to prevent particles mixing.
Filtration is also a key concern for civil applications and so geotextiles are used to control permeability. Needle-punched fabrics are used to ensure that fine particles that would usually get moved in soil moisture are now retained in the appropriate layer. This ensures that sub-base layers do not mix, and because of the complex structure of the geotextile, the permeability is not hindered, enabling moisture to move freely.
Another application for geotextiles in road construction is drainage. To minimise excess water and flooding risks, geotextiles are installed to drain superfluous moisture away. The material acts as a barrier below the surface to discharge the water away to reduce the risk of pooling water.
IFG Drake are proud to work with market leading geotextile companies in the manufacturing of needle-punched fabrics in a variety of civil construction projects. Get in touch to see how we can find a fibre solution for your geotextile.