Application of
Tunnels Shotcreting
SPRAYED CONCRETE, IN-SITU CONCRETE AND LINING SEGMENTS
FAST AND DEPENDABLE REINFORCEMENT IN TUNNEL CONSTRUCTION.
Regardless of whether a tunnel is being driven by conventional machinery or by a tunnelling machine, FIBPRO supports tunnellers in all aspects of reinforcement work by providing the necessary know-how, technical solutions and services – all from a single source. Our range includes a wide variety of fibre types for all project-related demands on the concrete. On request, we can also assume responsibility for assuring the quality of the sprayed concrete, in-situ concrete or tubbing segments. Based on our many years of experience, we combine reinforcement and fire protection in an optimal manner. On the basis of structural and fire protection calculations, we determine the safest and most economical fibre content for you. By choosing FIBPRO as your partner, you can rely on optimised fibre concrete and rapid construction progress. Because we know why.
ADVANTAGES OF FIBRE CONCRETE IN TUNNEL CONSTRUCTION
FEATURES
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BENEFITS
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COST ANALYSIS
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BENEFITS
Increase reinforcement effects with wall of even thickness on a rugged surface
Increase tensile strength, bending strength, shear strength of concrete; no hollowing-out ; reduction of wall thickness(20%)
High resistance to cracking; increase in toughness (residual strength) after cracking Shotcrete construction possible right after excavation; drop in risk of cave-in disasters; rise in reinforcement effects and safety of permanent structures

COST EFFECTIVENESS
Reduce labor costs, as no reinforcement assembly process is required Reduce working hours and construction costs
Reduce construction cost due to shortened construction period.
Reduce working hours and construction costs.

QUALITY
Streamlined work process; rise in quality and safety .
Reduce construction cost due to shortened construction period.
Reduce working hours and construction costs.
Reduce working hours and construction costs.

DISADVANTAGES OF CONVENTIONAL REINFORCEMENT IN TUNNEL CONSTRUCTION | ADVANTAGES OF STEEL FIBER REINFORCEMENT IN TUNNEL CONSTRUCTION |
---|---|
The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. | The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. |
The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. | The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. |
The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. | The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. |
The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. | The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. |
The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. | The surface of the concrete is unprotected and susceptible to damage resulting from the greater spacing with classic reinforcement. |

DISADVANTAGES
OF CONVENTIONAL REINFORCEMENT IN TUNNEL CONSTRUCTION
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ADVANTAGES
OF CONVENTIONAL REINFORCEMENT IN TUNNEL CONSTRUCTION
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- Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec quis orci at lorem pharetra porta. Donec vitae urna nec massa mattis tincidunt.
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Recommended Products For Tunnel Construction
- LOOSE STEEL FIBER
- GLUED STEEL FIBER
- CUSTOM MADE

LOOSE STEEL FIBER
Cold drawn wires with high strength, low carbon hooked end steel fibres.Loose fibres offer economical solutions for low & medium dosages in SFRC applicationsFibers made of cold-drawn wire / ASTM A 820 Type I / EN 14889-1 Group I
Product | Aspect Ratio | Length (mm) | Diameter (mm) | Strength | Application |
---|---|---|---|---|---|
FIBPRO-3X 55/30 BL | 55 | 30 | 0.55 | 1250 N/MM2 | Floor(Slab)/Precast |
FIBPRO-3X 45/30 BL | 45 | 30 | 0.65 | 1175 N/MM2 | Shotcrete/Precast |
FIBPRO-3X 65/35 BL | 65 | 35 | 0.55 | 1250 N/MM2 | Floor(Slab)/Precast |
FIBPRO-3X 55/35 BL | 55 | 35 | 0.65 | 1175 N/MM2 | Shotcrete/Precast |
FIBPRO-3X 45/35 BL | 45 | 35 | 0.75 | 1250 N/MM2 | Shotcrete/Precast |
Features
- Provides uniform multi-directional concrete reinforcement
- Increases crack resistance, ductility, energy absorption or toughness of concrete
- High tensile strength fibre bridging joints and cracks to provide tighter aggregate interlock resulting in increased load carrying capacity
- Provides increased ultimate load bearing capacity which allows possible reduction of concrete section
- Provides uniform multi-directional concrete reinforcement
- Increases crack resistance, ductility, energy absorption or toughness of concrete
- High tensile strength fibre bridging joints and cracks to provide tighter aggregate interlock resulting in increased load carrying capacity
- Provides increased ultimate load bearing capacity which allows possible reduction of concrete section

GLUED STEEL FIBER
Glued Steel Fibres are high tensile cold drawn steel wires with hooked ends, glued together with water soluble glue, for compactness and uniform dispersion in concreteFibers made of cold-drawn wire / ASTM A 820 Type I / EN 14889-1 Group I
Product | Aspect Ratio | Length (mm) | Diameter (mm) | Strength | Application |
---|---|---|---|---|---|
FIBPRO-3X 65/35 BG | 65 | 35 | 0.55 | 1250 N/MM2 | Floor(Slab)/Precast |
FIBPRO-3X 55/35 BG | 55 | 35 | 0.65 | 1200 N/MM2 | Shotcrete/Precast |
FIBPRO-3X 45/35 BG | 45 | 35 | 0.75 | 1175 N/MM2 | Floor(Slab)/Precast |
FIBPRO-3X 45/30 BG | 45 | 30 | 0.75 | 1175 N/MM2 | Floor(Slab)/Precast |
FIBPRO-3X 55/30 BG | 55 | 30 | 0.75 | 1175 N/MM2 | Floor(Slab)/Precast |
Features
- Provides uniform multi-directional concrete reinforcement
- Increases crack resistance, ductility, energy absorption or toughness of concrete
- High tensile strength fibre bridging joints and cracks to provide tighter aggregate interlock resulting in increased load carrying capacity
- Provides increased ultimate load bearing capacity which allows possible reduction of concrete section
- Provides uniform multi-directional concrete reinforcement
- Increases crack resistance, ductility, energy absorption or toughness of concrete
- High tensile strength fibre bridging joints and cracks to provide tighter aggregate interlock resulting in increased load carrying capacity
- Provides increased ultimate load bearing capacity which allows possible reduction of concrete section

Fibers made of cold-drawn wire / ASTM A 820 Type I / EN 14889-1 Group I
Product | Aspect Ratio | Length (mm) | Diameter (mm) | Strength | Application |
---|---|---|---|---|---|
CHO 3X | Client tailored aspect ratio, length, linear element ratio, and product packaging. |
Features
- Provides uniform multi-directional concrete reinforcement
- Increases crack resistance, ductility, energy absorption or toughness of concrete
- High tensile strength fibre bridging joints and cracks to provide tighter aggregate interlock resulting in increased load carrying capacity
- Provides increased ultimate load bearing capacity which allows possible reduction of concrete section
- Provides uniform multi-directional concrete reinforcement
- Increases crack resistance, ductility, energy absorption or toughness of concrete
- High tensile strength fibre bridging joints and cracks to provide tighter aggregate interlock resulting in increased load carrying capacity
- Provides increased ultimate load bearing capacity which allows possible reduction of concrete section




India Landmark Project, Atal Tunnel
Railway Tunnel Uttarakhand, India
For Hydro Power Plant Tunnel, Nepal
Tunnel Project, Africa
TUNNEL CONSTRUCTION AROUND THE WORLD:
EXPERIENCE IN THE FIELD WITH MARKCHEM® FIBPRO STEEL FIBER
FASTER STRIPPING
OF THE TUBBING SEGMENTS
The tubbing segments can be stripped after just 6 hours. This increases production performance.
SPACE SAVING
STORAGE
As the fibres are uniformly distributed in the components, up to 7 tubbing segments can be stacked on top of each other without any risk of breakage.
TRANSPORT WITH
LESS DAMAGE
Thanks to the uniform distribution of the fibres, the tubbing segments are also more stable against vibration and impact shocks during transport.
GREAT STABILITY
DURING INSTALLATION
When installing with the aid of a tunnelling machine, high loads act on the components. Here too, the stability of fibre concrete is an advantage.
KNOW WHY
TUNNEL CONSTRUCTION
100+
Tunnels