Why Choose Steel Fiber? Benefits for Bridges, Floors & Tunnels


I. Steel Fiber: The Revolutionary Material for Concrete Reinforcement
Steel fiber (steel fiber) is a metal reinforcement material manufactured through specialized processes, typically made from high-strength steel into filamentous shapes (diameter 0.2-3mm, length 10-60mm). Unlike traditional rebar, steel fibers form a three-dimensional "micro-skeleton" through random distribution, significantly enhancing concrete's crack resistance (30%-50% improvement), impact resistance (40%-70% increase), and durability.
As China's leading steel fiber manufacturer, Ganzhou DAYE Metallic Fibres Co., Ltd. (DAYE) has specialized in this field for over 20 years. Its product portfolio includes UHPC-specific steel fibers, stainless steel fibers, and polypropylene composite fibers, serving infrastructure projects in 28 countries with an annual production capacity exceeding 50,000 tons. The company holds ISO 9001, CE, ASTM A820 certifications and has participated in drafting industry standards such as Basic Properties and Testing Methods for Ultra-High Performance Concrete, showcasing its technical leadership.
II. Technical Features and Global Applications of Three Major Steel Fiber Types
Designed for Ultra-High Performance Concrete (UHPC), these fibers feature diameters of 0.15-0.30mm and hook/wave shapes:
Tensile strength ≥1,100 MPa (ASTM A820 compliant), ensuring stability under extreme loads.
Dispersion rate >98% (validated via laser particle analyzers), eliminating clumping.
Case studies: Norway Arctic Circle Bridge Project (-30°C cold resistance verification), Qatar World Cup Plaza Tower (wind pressure-resistant design).
Made from 304/316L stainless steel for corrosive environments:
2,000-hour salt spray resistance (ASTM B117 compliant), ideal for marine and chemical facilities.
High-temperature endurance up to 1,200°C, suitable for industrial kiln linings.
Applications: Penang Second Cross-Sea Bridge (Malaysia), Munich Airport Runway (freeze-thaw resistance).
Polypropylene Composite Steel Fiber
Hybrid fibers combining polymer flexibility and steel strength:
15% weight reduction (vs. pure steel fibers), ideal for suspended structures.
3x alkali resistance improvement (CECS 38:2004 compliant), extending underground structure lifespans.
Usage: Changi Airport Terminal 3 flooring (high-traffic fatigue resistance).
III. Four Engineering Advantages and Cost Efficiency
Construction Efficiency Revolution
Eliminates rebar installation, shortening timelines by 20%-35%. For example, a 10,000㎡ industrial floor reduces construction time from 15 days (traditional methods) to 10 days.
Lifecycle Cost Optimization
60% lower maintenance costs (20-year TÜV Rheinland data).
15% less material waste, aligning with LEED green building standards.
Adaptability to Complex Structures
Supports 3D-printed concrete and curved designs, applied in Venezuelan cement art carvings and UHPC prefabs.
Seismic and Safety Performance
IAEA-certified for 9-level earthquake resistance, used in hydropower stations and nuclear containment structures.
IV. Global Market Presence and Benchmark Projects
Region | Key Projects | Technical Highlights |
Europe | Tromsø Bridge,Norway | UHPC fibers verified at -30°C |
Southeast Asia | Penang Cross-Sea Bridge,Malaysia | Stainless steel fiber anti-corrosion solutions |
Middle East | Qatar World Cup Plaza Tower | Polypropylene fiber lightweight façade |
China | Jinan Yellow River Phoenix Bridge | Optimized steel fiber bending resistance |
Additionally, DAYE's products are exported to 28 countries, including Germany and the U.S., and used in domestic megaprojects like Hainan Puqian Bridge and Ganzhou Free Trade Zone.
V. R&D and Standardization
Industry-Academia Collaboration
Joint labs with Tsinghua University for fiber dispersion R&D.
Co-published UHPC On-Site Casting Technical Specifications with the Concrete Association.
Patents and Honors
Holds patents like the Steel Fiber Dispenser (solves clumping issues).
Recognized as a National High-Tech Enterprise and Specialized SME.
Quality Assurance
Each batch includes metallographic test reports and production videos for traceability.
VI. Customized Services and Global Logistics
Tailored Solutions
Customizable fiber lengths (12-60mm), coatings (zinc, copper), and moisture-proof packaging.
Provides dosage calculation software and construction guidelines.
Efficient Delivery
72-hour loading at Xiamen/Shenzhen ports, with DDP terms for global coverage.
European local warehouses reduce delivery time to 7 days.
VII. FAQs
Q: Do steel fibers rust?
A: DAYE stainless steel fibers pass ISO 9227 salt spray tests; copper-coated fibers remain stable in pH >3.5 environments.
Q: Can steel fibers be used with rebar?
A: Yes. Consult DAYE’s engineers for hybrid solutions (e.g., bridge pier reinforcement).
Q: How to verify product performance?
A: Download UHPC Steel Fiber Application Guidelines from DAYE’s website, including third-party test reports
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