To refurbish a tunnel seal requires a great deal of technical effort and massive financial investment. To prevent
this occurring, it is sensible to select products and sealing systems that will ensure long-term effectiveness.
Carbofol® geomembranes for tunnel construction Geosynthetic materials manufactured from polyethylene (PE), which is highly resistant to chemicals and ecologically safe to the environment, meet highest requirements.
Carbofol® tunnel geomembranes consist of PE-VLD (polyethylene – very low density) or PELLD (polyethylene – linear low density). Due to the careful resin selection, Carbofol® tunnel geomembranes are highly flexible and free from plasticizer.
The selection of materials depends mainly on the expected service life of the tunnel and the composition of the surrounding mountain water and ground water. The sealing elements should be flexible enough that when the concrete inner shell is being poured, it adjusts over the entire surface of the sealing carrier layer. The stresses resulting from the construction process and operation must be absorbed without any exceptations. National requirements for the geomembrane must be taken into account and it should be possible to process the material in a safe and sensible manner.
For more information please refer to the Technical Documents located on the right.
Lesson 101 on Geogrids
UNDERSTANDING THE BASICS OF GEOGRIDS The selection of the appropriate geogrid is a function of the application. So many people forget the basics and get confused by manufacturers quoting...Read More
The Differences between Non Woven Geotextiles and Woven Geotextiles
Lets firstly look at what is a geotextile? Geotextiles are a permeable synthetic textile material, made from either polypropylene or polyester. Geotextiles have had a long history of use in...Read More
Protecting The Environment with Geosynthetics
Geosynthetics are predominately plastic products made from polymeric materials that are helping us conserve resources and protect the environment. These important products include geotextiles,...Read More
ENGINEERED EARTH ARMOURING SEMINAR SERIES NOV 2017
Propex and Global Synthetics are proud to present a High Performance Turf Reinforcement Mats and Anchoring Systems Seminar . KEY LEARNING OBJECTIVES: - An introduction to the manufacturing...Read More