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Steel Fiber Concrete Innovations Below the Surface!

The underground offers the space which mostly is not available anymore on the surface. Urban traffic is saturated, and rapid mass transport is only possible with a good underground metro network. 

Service utilities require a dense network of pipes bringing fresh water into the cities and a dense network of sewers to evacuate the wastewater to the water treatment stations. Communication, being the main characteristic of our present world community, needs an extensive network of cables and service stations. The required space is only available underground.

Development of modern tunnelling techniques, construction materials and skilled mining people have highly influenced the attractiveness of the underground construction technology.

Exploring diverse applications in underground: navigating the parameters for selecting the perfect fiber match.


Segmental lining

Segmental lining

The utilization of reinforced precast concrete in tunnels is a rapidly expanding application of this material, and numerous tunnels worldwide have already been constructed using Fiber-Reinforced Concrete (FRC) segments. The incorporation of Dramix high-performance fibers offers several key advantages in precast tunnel segments: 

  1. Enhanced control over cracking during construction phases. 
  2. Increased impact resistance. 
  3. Improved durability in the final stage. 
  4. Cost reduction benefits. 
  5. Sustainability advantages. 
  6. Streamlined production processes.

Temporary shotcrete (spray concrete) lining

Temporary shotcrete (spray concrete) lining

Fiber reinforced concrete projected over- tunnel surface.

As tunnel excavation progresses, shotcrete finds frequent use in providing temporary support


Permanent spray concrete lining

Permanent spray concrete lining

The process of Sprayed Concrete Lining involves layering shotcrete onto the tunnel's surface, ensuring stabilization and creating a durable tunnel lining.

PSCLs will have a positive impact on the sustainability of underground spaces and increase their viability and potential uses

Dramix is the perfect choice for permanent linings


Cast-in-place linings

Cast-in-place linings

Concrete tunnel segments are cast at the site formwork


Mining and other applications

Mining and other applications

Whenever you need to design a structural or non-structural element - safer, easier, durable and sustainable, don’t hesitate to contact us to support.