System KST – Polymer Concrete Tunnel Drainage System. Professional solution for the collection of water and hazardous liquids in road infrastructure.

The System KST is an advanced drainage system designed for underground infrastructure and road tunnels. The system components are made of high-performance polymer concrete, a material that ensures high mechanical strength, exceptional chemical resistance and significantly longer durability compared to traditional concrete.

The system has been developed for the collection and safe evacuation of surface water and hazardous liquids in tunnels. In the event of road incidents, such as spills of fuels, oils or chemicals transported by tank vehicles, the system allows rapid collection of liquids and their conveyance to designated collection points.

Thanks to its modular design, the System KST can be integrated with prefabricated polymer concrete manholes, siphon manholes for hazardous liquids and wastewater and other custom-made polymer concrete prefabricated elements used in modern infrastructure water management systems.

Key Features of the System KST

High Mechanical Strength

The polymer concrete used in the production of the system components provides flexural and compressive strength far superior to traditional structural concrete. This allows the creation of lighter elements with thin walls, without the need for internal steel reinforcement.

Excellent Chemical Resistance

The system offers very high resistance to numerous industrial chemicals, fuels, oils and aggressive liquids. For this reason, polymer concrete tunnel drainage systems are ideal for infrastructure where there is a risk of hazardous substance leakage.

Total Impermeability

The material does not contain traditional cement and ensures total impermeability. This eliminates the risk of corrosion and significantly extends the service life of the system.

Resistance to Frost and External Agents

Polymer concrete offers excellent resistance to freeze-thaw cycles and to salts used in road maintenance. This makes the system particularly suitable for road infrastructure and tunnels.

Non-Flammable Material

The system components are made of non-flammable materials, a fundamental feature for ensuring safety in tunnels.

High Hydraulic Capacity

The system ensures a drainage capacity of up to 100 litres per second with a 2% slope, allowing the rapid evacuation of hazardous liquids and surface water.



Applications of the System KST

Collection of Surface Water in Tunnels

The system is designed to collect water present on the road surface along the entire length of the tunnel and convey it to designated collection systems.

Management of Hazardous Liquids

In the event of accidents involving spills of fuels or chemical substances, the system enables the rapid collection of liquids and their conveyance to:

  • siphon manholes for hazardous liquids and wastewater
  • dedicated collection systems
  • safety tanks

Areas of Application

The system is designed for infrastructure applications with load classes from A15 to D400 according to PN-EN 1433.

Applications include:

  • road tunnels
  • motorway infrastructure
  • infrastructure drainage systems
  • edge zones of carriageways in tunnels
  • underground infrastructure


Linear Drainage System for Infrastructure

The prefabricated channels of the System KST create a continuous linear drainage system that collects and conveys:

  • rainwater
  • fuels
  • oils
  • potentially hazardous chemical substances

For this reason, the system is often used together with prefabricated polymer concrete manholes, mountain water collector manholes and other custom-made polymer concrete prefabricated elements used in modern infrastructure.


Advantages of Polymer Concrete Drainage

Compared to traditional concrete systems, polymer concrete tunnel drainage systems offer numerous advantages:

  • higher mechanical strength
  • excellent chemical resistance
  • total impermeability
  • greater durability over time
  • lower maintenance costs
  • increased safety in infrastructure

Thanks to these characteristics, polymer concrete systems represent a modern and reliable solution for road infrastructure and tunnels.


FAQ – Frequently Asked Questions

What is the System KST?

The System KST is a prefabricated tunnel drainage system made of polymer concrete.

Where is the System KST used?

It is mainly used in road tunnels and underground infrastructure.

What liquids can the system collect?

The system can collect rainwater, fuels, oils and chemical substances.

Is the system resistant to chemical substances?

Yes, polymer concrete provides very high chemical resistance.

Is the system resistant to frost?

Yes, it offers excellent resistance to freeze-thaw cycles.

What is the drainage capacity of the system?

The system can drain up to approximately 100 litres per second with a 2% slope.

Can the system be integrated with other elements?

Yes, it can be integrated with prefabricated polymer concrete manholes and other water management systems.

Is the material impermeable?

Yes, polymer concrete is completely impermeable.

Does the system require frequent maintenance?

No, thanks to the material properties, maintenance is minimal.

Is it possible to create customised versions of the system?

Yes, SYTEC also produces custom-made polymer concrete prefabricated elements for specific infrastructure projects.