Sunshine Industries

Concrete reinforcement fibers are small, discrete fibers added to concrete to improve strength, crack resistance, durability, and overall performance. They act as secondary reinforcement and are distributed uniformly throughout the concrete mix.

Used for structural strength and heavy-load applications.

Common Types:

• Hooked End Steel Fiber

• Crimped Steel Fiber

• Straight Steel Fiber

• Micro Steel Fiber

Applications:
Industrial floors, highways, bridges, strong rooms, precast elements.

Synthetic fibers mainly used for plastic shrinkage crack control.

Applications:
Residential slabs, plaster, water tanks, pavements.

Used in architectural and decorative concrete.

Applications:
GFRC panels, cladding, façade elements.

High corrosion resistance and good tensile strength.

Applications:
Marine structures, chemical plants.

Used as partial replacement of steel mesh.

Applications:
Industrial floors, slabs-on-grade.

✔ Control plastic shrinkage cracks
✔ Improve flexural strength
✔ Increase impact resistance
✔ Enhance fatigue life
✔ Reduce permeability
✔ Improve durability
✔ Minimize traditional mesh in some applications

In many projects, fibers are used along with rebar for better performance.

• Micro fibers: 0.6–2 kg/m³ (PP)

• Steel fibers: 20–60 kg/m³

• Macro synthetic: 3–7 kg/m³

Exact dosage depends on load, design, and project specification.

• Industrial flooring

• Highways & pavements

• Precast concrete

• Tunnels & shotcrete

• Bridges

• Strong rooms

• Warehouse slabs

UHPC Steel Fibre is specially designed high-strength steel fiber used in Ultra-High Performance Concrete (UHPC). These fibers provide exceptional tensile strength, ductility, and crack control in very dense, high-strength concrete mixes.

Ultra-High Performance Concrete (UHPC) is an advanced concrete with:

• Compressive strength: 120–180+ MPa

• Very low permeability

• High durability

• Superior tensile performance (with fibers)

Steel fibers are essential in UHPC because they provide tensile capacity and ductility.

UHPC fibers are:

• Very fine diameter

• Short length

• Ultra-high tensile strength

• Precisely manufactured for uniform dispersion

They are usually straight or micro hooked, depending on design requirements.

• Length: 8–20 mm

• Diameter: 0.15–0.25 mm

• Aspect Ratio (L/D): 50–80

• Tensile Strength: 2000–3000 MPa

• Dosage: 100–250 kg per m³ (much higher than normal concrete)

⚠ UHPC uses significantly higher fiber content compared to conventional concrete.

Since UHPC contains:

• No traditional coarse aggregate

• Very dense matrix

Steel fibers:

✔ Provide tensile strength
✔ Bridge micro and macro cracks
✔ Improve flexural strength
✔ Increase impact resistance
✔ Add ductility (prevents brittle failure)

Without fibers, UHPC behaves in a brittle manner.

Thin, high-strength structural elements.

Lightweight but extremely strong elements.

Thin, durable panels.

Blast-resistant walls and strong rooms.

High-strength overlays and structural strengthening.

✔ Extremely high tensile strength
✔ Superior crack control
✔ Improved flexural and impact performance
✔ Enables thinner structural sections
✔ Long service life

UHPC mix design must be carefully engineered.
Fiber selection, dosage, and dispersion are critical for performance

Polypropylene Fiber (PP Fiber) is a synthetic reinforcing fiber made from polypropylene polymer. It is widely used in concrete and construction materials to improve strength, durability, and crack resistance.

Polypropylene fibers are very thin, lightweight plastic fibers that are mixed into concrete, mortar, or plaster to reduce cracking and improve structural performance.

• Monofilament Fiber – Used for crack control in concrete and plaster.

• Fibrillated Fiber – Mesh-like structure for better bonding with concrete.

• Macro Synthetic Fiber – Used as a partial replacement for steel reinforcement.

• Industrial floors and warehouses

• Roads and pavements

• Shotcrete and tunnel linings

• Plaster and mortar reinforcement

• Precast concrete products

• Water tanks and foundations

✔ Reduces shrinkage cracks
✔ Improves impact resistance
✔ Increases durability of concrete
✔ Corrosion-free (does not rust like steel)
✔ Lightweight and easy to mix

Usually 600 g – 1 kg per cubic meter of concrete, depending on the application.