For tunnel structures are faced with very stringent requirements regarding durability, exposure and stress conditions, demanding construction methods and sequences, ease of application and total cost management. In addition, sustainable systems solutions are becoming more important in order to save natural resources such as energy and water, reduction of CO2, etc.
Protan InfraPlan is a complete water protection system for tunnels and underground constructions. Benefits include low life-cycle costs, easy installation and environmental gains. Protan Infraplan was launched in 2021 and is designed to be functional and versatile. This sustainable, homogenous, flexible and watertight single-layer membrane is made to last.
At the same time, we have almost as much experience in supplying recognised products and solutions for membranes used in the ventilation of tunnels and mines. We have combined this competence and market knowledge to create a sustainable and highly durable water protection system for all types of tunnels.
Protan’s tunnel membrane has been well established in the Turkish tunnel market for many years, and is, among other applications, widely used in Istanbul’s underground rail system. It meets the requirements of the Norwegian Public Roads Administration handbook and other European requirements.
Protan roof membranes are known for their long lifetime and for having the lowest carbon footprint in the industry, and these important values for sustainability and durability also apply to our tunnel membranes. In addition to protecting the tunnel, Protan tunnel membranes also help to protect the area both inside and surrounding the tunnel by, for example, preventing groundwater pollution and the leakage of oil or chemicals from the tunnel out into nature.
A tunnel waterproofing membrane is a protective barrier installed between the surrounding ground and the tunnel structure. It prevents groundwater from entering the tunnel and protects the concrete structure from moisture and water pressure.
Waterproofing membranes create a continuous sealed layer that blocks groundwater from penetrating the tunnel lining. This helps maintain a dry interior environment and protects the structure from long-term water damage.
Common tunnel waterproofing membranes include PVC and other polymer-based membranes designed for underground conditions. These materials are flexible, durable, and resistant to chemicals and groundwater pressure.
High-quality tunnel membranes are designed for long service life and can perform for decades when properly installed and protected. Durability depends on factors such as material quality, installation methods, and site conditions.
Important factors include groundwater conditions, chemical exposure, installation method, durability requirements, and compatibility with the tunnel design. The membrane must also meet relevant safety and quality standards.
Tunnel waterproofing membranes are tested for properties such as tensile strength, watertightness, puncture resistance, and durability. Compliance with international standards helps ensure reliable long-term performance.
Effective waterproofing protects structural elements from moisture, corrosion, and freeze-thaw damage. By keeping the structure dry, the membrane helps extend the service life of tunnels and reduces maintenance needs.
