
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.

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.

