The use of steel fiber in concrete can improve its many properties. The benefits of using steel fiber in concrete are as follows:
1. Steel Fibers are generally distributed throughout a given cross section whereas reinforcing bars or wires are placed only where required
2. Steel fibers are relatively short and closely spaced as compared with continuous reinforcing bars of wires.
3. It is generally not possible to achieve the same area of reinforcement to area of concrete using steel fibers as compared to using a network of reinforcing bars of wires.
4. Steel Fibers are typically added to concrete in low volume dosages (often less than 1%), and have been shown to be effective in reducing plastic shrinkage cracking.
5. Steel Fibers typically do not significantly alter free shrinkage of concrete, however at high enough dosages they can increase the resistance to cracking and decrease crack width
Following are the common applications of steel fiber reinforced concrete constructions:
The inclusion of steel fibers in shotcrete improves many of the mechanical properties of the basic material viz the toughness, impact resistance, shear strength, flexural strength, and ductility factor. FRS has been used for:
Rock stabilization, tunnels, dams, mines.
Bridges arches, dome structures, power-house
Stabilization of slopes to prevent landslides repair of deteriorated concrete surface, water channel,
etc.
- Tunnel linings
- Manholes
- Risers
- Burial Vaults
- Septic Tanks
- Curbs
- Pipes
- Covers
- Sleepers
The inclusion of steel fibers in shotcrete improves many of the mechanical properties of the basic material viz the toughness, impact resistance, shear strength, flexural strength, and ductility factor. FRS has been used for:
Rock stabilization, tunnels, dams, mines.
Bridges arches, dome structures, power-house
Stabilization of slopes to prevent landslides repair of deteriorated concrete surface, water channel,
etc.
