Mud pumping can result in loss of line and level and the creation of mud holes which have traditionally required extensive maintenance and monitoring to keep under control.

Tracktex Green geocomposite has been developed to address the extensive and expensive track and ballast deterioration problems caused by mud pumping. When installed at the ballast formation interface, it prevents rain water penetrating through to the underlying deposits while under load, allowing a controlled upward movement of water through capillary action and also filtering and retaining any fine soil particles, in situ, during the process.

It is a proven mud pumping solution which has been used to deliver significant reductions in maintenance cycles on affected sections of track. In fact, Tracktex Green increases track bed maintenance intervals on sections affected by pumping failure by more than 25 times, providing significant savings over any available alternative.

Approved by national rail authorities around the world, TriAx TX190L geogrid is specifically designed for use in track beds. The unique large aperture triaxial structure of TriAx is designed specifically for track ballast stabilisation and is scientifically proven to lock ballast in place limiting lateral movement and keeping tracks aligned. This technology reduces the rate of ballast degradation and settlement to extend the track maintenance cycle. Using geogrids reduces the amount of foundation material required by up to 30%, which in turn, reduces construction costs.

Geoweb geocells can also help create high-stiffness ballast layers by confining the ballast within the 3D structure, creating a stiffened slab which increases load bearing capacity and minimises horizontal and vertical movement. The perforated structure of Geoweb geocell allows lateral drainage of water from within the ballast.

Bearing capacity of foundation material below ballast is affected by excess moisture unless effective subsurface drainage is in place. Megaflo Green socked slotted drain pipes have a profile that offers a higher resistance to deformation and loss in discharge capacity required for use under rail track. It is a proven quick response drainage solution widely used across Australasia to remove water from rail track formations.

TriAx triaxial geogrids are used within the track substructure by improving the track foundation through the mechanical stabilisation of the capping layer. When constructing track over soft subgrade soils having a low bearing capacity, it is necessary to improve the foundation to support the ballast effectively. Capping layers reinforced with TriAx triaxial geogrids can increase load carrying capacity and prolong service life. Using geogrids also decreases the amount of capping layer material required by up to 30%, which in turn reduces construction costs. Incorporating Tensar geogrids means less excavation and fill material is needed.

The addition of Bidim Green non-woven geotextiles between the capping layer and the subgrade provides separation and filtration, enhancing the effectiveness of track drainage reducing the softening of the capping layer.

Geoweb cellular confinement geocells are a proven technology for solving challenging soil stabilisation problems common in the railroad industry, across the globe. Railway engineers have successfully applied Geoweb to provide a high-stiffness roadbed foundation at grade under track, crossings and turnouts, particularly in areas of weak soils. It stabilises the capping layer, reducing vertical and lateral stresses and significantly reducing subsoil movement, resulting in significant long term performance improvement and a reduction in the amount of foundation material required by up to 50%.

Erosion control mats are generally classified as either biodegradable, composed entirely of natural fibres and typically used as a temporary protective cover, or non-biodegradable, made from synthetic materials designed to provide long-term or permanent protection. These categories primarily differ in their material composition, mat thickness, and intended applications.

The primary objective of using geosynthetics in erosion control is to preserve soil cover, either as a temporary solution to prevent soil loss during vegetation establishment, or as a long-term permanent measure, often applied to steeper slopes along the railway track.