Why Choose Our Milling Steel Fiber for Reinforcement?
Our premium milling steel fiber is manufactured using advanced precision cutting technology, resulting in a unique rough texture and twisted shear geometry. Unlike standard straight fibers, this specific design provides unmatched mechanical interlocking and anchorage within the cementitious matrix, making it the premier choice for high-stress civil engineering projects.
📐 Product Specifications & Dimensions
To ensure uniform dispersion and optimum crack control, we offer customizable aspect ratios tailored to your project requirements:
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Material Type: High-tensile carbon steel / alloy steel
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Fiber Length: 20mm – 60mm (Customizable)
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Tensile Strength: $\ge 700$ MPa to $\ge 1000$ MPa
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Standards: CE Certified, ASTM A820, EN14889 Type 2 (Milled Fiber)
🏗️ Primary Applications
Thanks to its excellent load-bearing capability and fatigue resistance, this shear type fiber is widely specified in:
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Industrial Flooring: Warehouse floors, factory pavements, and heavy-duty slabs on grade.
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Tunnel & Mining: Premium shotcrete and sprayed concrete for underground rock stabilization.
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Infrastructure: Bridge decks, dam spillways, and prefabricated building components.
🏗️ FAQ: Frequently Asked Questions
Q1: What are the key benefits of using milling steel fiber over traditional mesh reinforcement?
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A: Unlike traditional steel fabric or rebar mesh, milling steel fiber provides fully automated and uniform 3D multidirectional reinforcement throughout the concrete matrix. Its unique rough, sheared surface and twisted geometry offer superior mechanical anchoring strength, effectively controlling macro-cracks, delaying crack propagation, and dramatically increasing the concrete’s shear and tensile strength. It also eliminates the labor costs and time required for cutting and placing mesh.
Q2: Does this shear wave type steel fiber comply with international engineering standards?
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A: Yes, our premium shear wave type steel fiber is fully compliant with global manufacturing guidelines, including ASTM A820 (Standard Specification for Steel Fibers for Fiber-Reinforced Concrete) and EN 14889-2 Type 2 standards for milled steel fibers. Every bulk shipment comes with a certified CE and ISO quality compliance test report indicating standard-grade aspect ratios and high tensile strength.
Q3: What is the recommended dosage of milling steel fiber per cubic meter of concrete?
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A: The standard fiber dosage typically ranges from $20 \text{ kg/m}^3$ to $50 \text{ kg/m}^3$ ($1.0\%$ to $3.5\%$ volume fraction), depending entirely on your specific project requirements. For commercial heavy-duty industrial flooring, a lower volume fraction usually suffices. For critical structural rehabilitation, tunneling support, or high-velocity shotcrete applications, a higher fiber dosage is specified to meet high fatigue and energy absorption parameters.
Q4: Will adding milling steel fiber to the concrete mix affect its workability or slump?
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A: Adding high dosages of steel fibers can slightly reduce the initial concrete slump. However, our fibers are engineered for optimal aspect ratio and loose form factor to guarantee rapid, uniform dispersion without balling or clumping. To maintain high fluidity and workability during concrete pumping or spraying, we highly recommend adding a high-range water reducer (HRWR / superplasticizer) to the concrete mix design.
Q5: Is this high-strength milled fiber suitable for tunnel shotcrete and marine infrastructure?
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A: Absolutely. Our high-tensile milling steel fiber is exceptionally suited for wet/dry shotcrete and sprayed concrete in underground mining and tunneling rock stabilization due to its elite mechanical pull-out resistance. Furthermore, its unique shape ensures low rebound rates during application. For marine engineering or coastal environments, the tight cement matrix packing effectively limits internal oxygen infiltration, making the reinforced structures highly corrosion-resistant and crack-controlled against harsh seawater conditions.
