Steel Fiber Concrete

Steel Fiber Concrete

FiberPlast50

FIBERST50

Reinforcement Alternative to Rebar for Concrete

Increases Concrete Hardness and Mechanical Strength

What is Steel Fiber Concrete?

Currently, the reinforcement of concrete using steel fibers has gained significant attention and, in many cases, has replaced rebar. This eliminates the need for woven rebar networks in producing reinforced concrete. The reason for using steel fibers is the numerous technical and economic advantages these metallic fibers provide for concrete. Adding steel fibers to concrete reduces its brittleness and ultimately enhances its ability to withstand repeated use, shocks, impacts, and wear. The primary impact of using these metallic fibers in concrete is to delay and control its failure.

Steel fibers have been widely used in industrialized and advanced countries, and in Iran, the use of steel fibers for making rebar-free reinforced concrete has begun. Steel wire fibers are low-carbon, high-performance wires that, due to their high tensile strength, distribute well when mixed with concrete, optimizing its mechanical properties. They come in various forms. One of the main benefits of steel fibers in concrete is their ability to reinforce the concrete against cracking and collapse. The noticeable impact of steel fibers on concrete is the delay and control of its failure strength.

In general, steel fibers are made from small, discontinuous pieces of metals or metallic alloys that are added to concrete mixtures. The addition of these metallic fibers to concrete improves its mechanical properties and performance for specific applications. Ultimately, these metallic fibers are strategically incorporated into concrete to match its functional properties.

Mechanism of Action of Steel Fiber Concrete

What effects do metallic fibers have on concrete?

Concrete reinforced with steel fibers consists of a concrete body made of cement, aggregates, water, and a percentage of steel fibers that are randomly distributed throughout the concrete mix. In this way, the concrete is reinforced.

Properties and Effects of Steel Fiber Concrete

What properties do metallic fibers provide to concrete?

• Reduces the thickness of concrete based on concrete characteristics
• Reduces the need for human labor in reinforcement work
• Saves time in weaving rebar networks
• Eliminates the need for rebar in reinforced concrete structures
• Saves time in project execution without issues during concrete pumping
• Facilitates mixing and increases the speed of execution
• Increases concrete durability, stability, and longevity over time
• Enhances resistance to wear and corrosion
• Creates post-tension force after an explosion
• Helps prevent weakness during earthquakes and increases resistance
• Highly resistant to cracking after drying
• Enhances cohesion in concrete through fiber distribution
• Prevents crack formation (controls plastic shrinkage cracks)
• Provides high resistance to large explosions

Applications of Steel Fiber Concrete

Where can steel fiber concrete be used?

• Suitable for tunnel construction and road paving
• Ideal for parking lot floors
• Suitable for factory, hall, and warehouse flooring
• Ideal for road surface paving
• Enhances resistance in weakened marine structures, such as lighthouses
• Suitable for reinforcing and protecting bridge walls
• Provides stability for sloped rocks
• Used for steel deck roof concrete pouring
• Can be combined with ready-mix grout for reinforcement

Physical and Chemical Properties of Steel Fiber Concrete

Materials: Compliant with ASTM 510 M
Tensile Strength: 700-1200 MPa
Bonding Force in Concrete: Achieved through weaving
Shape: Fibers bonded in a strip form
Specific Weight: 1.9
Shrinkage: Less than 0.06%

Consumption of Steel Fiber Concrete

How much steel fiber concrete should be used?

The typical consumption of steel fibers in each cubic meter of concrete is generally between 10 to 30 kg.

Application Method for Steel Fiber Concrete

How should steel fiber concrete be applied?

Steel fibers are added to the concrete mixture during production at the factory or on-site. For each cubic meter of concrete, at least one minute of mixing is required. The best time to add steel fibers to the concrete mix is during the middle stages of mixing.

Safety of Steel Fiber Concrete

Steel fiber concrete is not classified as toxic, hazardous, or flammable.

• Be cautious when adding the fibers to the concrete mix, as the sharp ends of the fibers could cause injury.
• Wear appropriate safety gear such as goggles, gloves, and a suitable mask.

Storage of Steel Fiber Concrete

How should steel fiber concrete be stored?

• Can be stored for at least 10 years if kept in a covered, suitable space.
• Keep away from moisture and direct sunlight.
• If possible, store steel fiber bags on pallets.

Packaging of Steel Fiber Concrete

Packaging: 20 kg bags