PNE® CS-4025 crimped steel fibres are cold-drawn, high-strength fibers designed to reinforce concrete by reducing early-age shrinkage cracking, improving ductility, and enhancing post-crack load-carrying capacity.

The crimped (zigzag/wavy/deformed) geometry increases pull-out resistance and provides three-dimensional reinforcement, making the fibers suitable for:

Industrial flooring & pavement slabs
Precast elements & composite decks
Shotcrete for tunnels & underground structures
UHPC requiring high toughness

Compared with traditional welded wire mesh, crimped fibers help reduce labor cost, improve uniform dispersion, and enhance structural durability.

Cuts Rebar Requirements

Reduces Crack Propagation

Technical Specifications of Crimped Steel Fibres

Our steel fibres are engineered to ensure optimal workability, dispersion, and reinforcement efficiency:

Material: High-tensile steel
Type: Crimped steel fibre for SFRC
Specific Gravity: 7.8 g/cm³
Diameter: 0.6 mm
Length: 40 mm, 54 mm (custom lengths available)
Aspect Ratio: Optimized for effective dispersion
Tensile Strength: 1020 MPa
Modulus of Elasticity: 200 GPa
Color: Metallic gray

Risk of Exposure and Corrosion
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International Standards for Steel Fibre Reinforced Concrete

PIONEER® crimped steel fibers comply with global concrete reinforcement standards:

ASTM A820 – Steel Fibers for Fiber-Reinforced Concrete
ASTM C1116 – Fiber-Reinforced Concrete & Shotcrete
EN 14889-1 – Steel Fibres for Concrete

These standards ensure consistent quality, durability, and structural performance in SFRC applications.

PNE® CS-4025 crimped steel fiber enhances flexural strength, fatigue resistance, and durability in bridge piers and high-load structural elements.

Flexural strength | Fatigue | Durability

PNE® CS-4025 steel fiber provides effective crack control, load transfer, and impact resistance in industrial floor slabs and large concrete surfaces.

Load transfer | Crack control | Impact

Key Benefits of Using Crimped Steel Fibres in Concrete

Unlock key performance enhancements with PIONEER® crimped steel fibres:

Effective Crack Control: Mitigates shrinkage cracking and enhances flexural strength.
Strong Mechanical Anchorage: Crimped profile increases pull-out resistance in hardened concrete.
Improved Load Transfer & Toughness: Higher fatigue, impact, and abrasion resistance vs. plain concrete.
Cost-Effective Reinforcement: Reduces or replaces mesh, lowering installation cost.
Long-Term Durability: Resistant to freeze–thaw, abrasion, and stress fatigue.
Versatile Application: Suitable for floors, precast, shotcrete, UHPC, and industrial slabs.

Applications of Crimped Steel Fibres in Concrete

PIONEER® crimped fibers are widely used in:

Industrial floors & warehouse slabs
Road pavement & large concrete overlays
Precast concrete panels, pipes, manholes
Tunnel shotcrete, mining slopes, underground structures
Composite steel fiber concrete decks
UHPC components requiring high ductility
Jointless slabs for heavy-duty environments

Hong Kong-Zhuhai-Macao Bridge

Da Nang Pier in Vietnam built with steel fiber-reinforced concrete for superior tensile strength, impact resistance, and long-term durability in harsh marine conditions

Da Nang Pier, Vietnam

Hangzhou Olympic Center

No Balling. No Rust. Easy Finishing
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Usage Guidelines for Steel Fibre Reinforced Concrete

Follow these recommendations to maximize the performance of crimped steel fibres in your concrete:

Dosage Recommendation: 15–45 kg/m³ depending on load demands, slab thickness, and crack control requirements.
Mixing Instruction: Add fibers after aggregates, mix 3–5 minutes to ensure uniform dispersion and avoid balling.
Placement: Fully compatible with pumping, casting, screeding, and vibrating.
Finishing: Standard tools apply; minor fiber exposure does not affect structural performance.

Custom Steel Fibre Solutions for Concrete Reinforcement

We offer customizable reinforcement solutions for SFRC & UHPC:

Lengths:

Standard and custom lengths available to suit project needs.

Packaging:

Water-soluble paper bags (5 kg, 10 kg) for direct addition into the mixer.
Cardboard cartons for organized on-site handling.
Bulk packaging options available based on project logistics.

Why Choose PIONEER® as Your Concrete Fiber Supplier

Partner with a direct manufacturer with over 22 years of expertise in synthetic fiber reinforcement for concrete and mortar.

22 Years of Expertise in Fiber Reinforcement

PIONEER® provides consistent, high-performance fibers that ensure long-term success in concrete slabs, precast elements, industrial floors, and critical infrastructure projects, making us a trusted supplier in the global market.

1,000+ Projects in 20+ Countries

Our fibers are applied in major projects, including the Hong Kong-Zhuhai-Macao Bridge, Bangladesh Subsea Tunnel, Walmart Superstores, and metro systems, demonstrating our proven capability in fiber-reinforced concrete and mortar applications.

Direct Manufacturer, One-Stop Service

We provide complete technical support, including dosage optimization, mix design consultation, and on-site application guidance to ensure your projects succeed with fiber-reinforced concrete and mortar.

PIONEER® factory office building in Nanjing showcasing the company's headquarters and administrative facilities.

PIONEER® Headquarters

Aerial view of PIONEER® production facility in Nanjing, showcasing the company's modern factory and large-scale concrete fiber manufacturing capabilities.

26,500m² production base

Synthetic fibers manufacturing production line for fiber reinforced concrete, producing concrete fibers and fiber mesh reinforcement to reduce cracks and improve durability.

Advanced fiber dispersibility

Concrete fibers production line manufacturing reinforcement fiber for concrete and improving fiber reinforced concrete performance.

Exceptional tensile strength

Need higher-performance macro synthetic fiber?

Upgrade to next-generation (PP-PE) macro fiber for slab-on-grade applications.

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PIONEER® engineers provide technical guidance at the construction site

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Why Choose Us?

Proven Expertise & Greater Savings

22 years of focus

on fiber reinforcement solutions.

5,000 tons yearly

from advanced manufacturing.

20+ countries served

with global product distribution.

1,000 projects proven

in diverse applications worldwide.

FAQ

Yes. Crimped steel fibers are fully compatible with water reducers, superplasticizers, accelerators, and most concrete admixtures. Proper mixing order—typically adding fibers after aggregates—ensures stable workability.
Not significantly. When properly mixed and placed, most fibers remain below the finished surface. For exposed architectural surfaces, adjustments to mix design and finishing tools can ensure a smooth, fiber-free appearance.
Engineers often reference ASTM C1609, EN 14651, and JSCE SF testing methods to evaluate flexural toughness, residual strength, and post-crack behavior of fiber-reinforced concrete.
In many light-to-medium duty applications—such as industrial floors, pavements, precast elements, and shotcrete—crimped steel fibers can partially or fully replace welded wire mesh, reducing labor and improving crack control.
Crimped steel fibers should be kept in dry, covered spaces to prevent moisture exposure. Although minor rust does not impact performance, proper storage ensures clean dosing and consistent batching efficiency.