Railroads
Some precautions need to be taken with ballasted rail tracks in order to prevent:
- upward migration of fine particles into the ballast,
- diminished bearing capacity of clay soils,
- creation of voids (gypsum) caused by the dissolution of soils by rainwater.
The use of COLETANCHE® ES4 (which is a thick bituminous geomembrane) under the ballast is particularly recommended during construction and maintenance of rail tracks.
![Transport _ pont ferroviaire](https://www.axter.eu/wp-content/uploads/2021/03/Transport-_-pont-ferroviaire.jpg)
![TRANSPORT-BNSF Crawford](https://www.axter.eu/wp-content/uploads/2021/03/TRANSPORT-BNSF-Crawford-e1615477235711.jpg)
Airports runways
Stabilisation of airport runways
The use of COLETANCHE on an airport runway makes it possible to create a waterproof barrier over water-sensitive soils to maintain the physical and mechanical properties of the runway, whatever the weather conditions: rain, snow, sun, hot or cold temperatures.
The composite structure of COLETANCHE geomembranes, thanks to its reinforced geotextile also offers high resistance to aggregate puncture.
![header](https://www.axter.eu/wp-content/uploads/2021/03/header-e1615477375944.jpeg)