HGM® PAN
Polyacrylonitrile Fiber for Asphalt Mixes
Boost durability • Stabilize heat • Reduce cracking
Since 2002, we have specialized in concrete crack resistance, waterproofing, and anti-corrosion technologies.
HGM® PAN
PAN Fiber for Asphalt Pavements
Premium PAN Fiber Solutions for Fiber-Reinforced Asphalt Mixtures
What Is HGM® PAN Asphalt Fiber?
HGM® PAN is a specially engineered polyacrylonitrile fiber designed as a reinforcement additive for hot mix asphalt. It forms a three-dimensional micro-reinforcement network within the asphalt matrix, improving mixture stability, binder retention, and load distribution.
Compared with other synthetic fibers, PAN fibers offer outstanding heat resistance, enabling superior performance in high-temperature mixing and compaction environments.
Key Performance Enhancements:
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Improved anti-cracking and thermal crack resistance
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Higher stability during high-temperature asphalt mixing
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Reduced drain-down in SMA and OGFC mixtures
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Enhanced durability and fatigue life
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Improved resistance to rutting and deformation
Technical Specifications of PAN Fiber for Asphalt Reinforcement
Explore the detailed properties that ensure reliable performance for fiber-reinforced asphalt mixtures.
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Material: 100% Polyacrylonitrile (PAN)
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Type: Monofilament synthetic fiber
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Specific Gravity: 1.14 g/cm³
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Nominal Length: 6 mm, 12 mm
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Tensile Strength: 500–900 MPa
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Elastic Modulus: 7–10 GPa
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Thermal Resistance: 220–240°C
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UV Resistance: Excellent
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Color: Yellow
Relevant Asphalt-Mixture Evaluation Methods
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ASTM D8225-26 — Indirect tensile cracking test / CTIndex for evaluating asphalt-mixture cracking resistance.
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AASHTO T 324 — Hamburg Wheel-Track testing for rutting and moisture susceptibility.
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AASHTO M 325 — Relevant mixture specification when the product is evaluated in an SMA system.
How HGM® PAN Reinforces Asphalt Mixtures
1. Three-Dimensional Fiber Network
Enhances tensile strength and distributes load more evenly through the asphalt matrix.
2. Improved Cohesion and Stability
Fiber prevents binder migration and reduces drain-down during production and paving.
3. Increased Resistance to Rutting and Deformation
Improves resilient modulus and mixture stiffness without compromising flexibility.
4. Enhanced Fatigue Life
Fiber-reinforced asphalt withstands repeated traffic loads more effectively.
PAN fibers enhance asphalt crack resistance
PAN Fiber Reinforced Asphalt for Durability
Key Benefits of Using Polyacrylonitrile Fiber in Asphalt Pavements
Leverage the advanced performance of PAN fibers for fiber-reinforced asphalt concrete:
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Enhanced Durability: Reduces cracking, rutting, and fatigue in asphalt layers.
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Thermal Stability: Maintains performance under high temperatures during paving and service.
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Improved Flexibility: Supports heavy traffic and thermal expansion without deformation.
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UV and Weather Resistance: Withstands harsh environmental conditions without degradation.
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Cost-Effective: Reduces repair frequency, lowering lifecycle costs for pavements.
Applications of HGM® PAN Fiber
HGM® PAN asphalt fibers are widely used in projects requiring improved durability and high-temperature stability.
Ideal for:
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Stone Mastic Asphalt (SMA)
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Dense-graded asphalt mixtures
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OGFC / porous asphalt
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High-temperature regions
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Heavy-traffic roads, highways, and expressways
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Airport runways and aprons
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Urban paving and industrial pavements
Performance Benefits in Engineering Applications:
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Reduced cracking in high-temperature climates
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Improved rutting resistance for heavy-traffic roads
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Enhanced binder stability for SMA
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Extended service life and reduced maintenance
Hong Kong-Zhuhai-Macao Bridge
Da Nang Pier, Vietnam
Hangzhou Olympic Center
How to Use Polyacrylonitrile (PAN) Fiber in Asphalt Mixes？
Integrate PIONEER® PAN fibers into your asphalt paving projects seamlessly for effective reinforcement.
Usage Guidelines:
1. Dosage: Add 1–3 kg of PAN fiber per ton of asphalt mix depending on project requirements.
2. Mixing: Blend fibers with aggregates before bitumen addition to ensure uniform dispersion.
3. Construction: Compatible with standard paving and compaction equipment and methods.
4. Design: No need to modify standard hot mix or warm mix asphalt designs.
Custom Fiber Solutions for Asphalt Projects
PIONEER® provides tailored solutions to meet specific project needs:
Lengths: Customizable fiber lengths available for different applications.
Packaging:
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Bulk Ton Bags: For large-scale asphalt production.
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Low-Melt PE Bags: For easy, clean dosing during asphalt mixing.
Learn more about Micro Synthetic Fibers
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HGM® Aramid - Aramid Fiber for Asphalt Mixtures
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HGM® PET - Cost-Effective Fiber Additive for Asphalt
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HGM® PAN - Heat-Resistant Polyacrylonitrile Fiber for Asphalt
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HGM® Basalt - Mineral Fiber for Asphalt Mixtures
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HGM® F-Lignin - High-Dispersion Lignin Fiber
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HGM® G-Lignin - Granular Lignin Fiber for Asphalt
Looking for Better Macro Synthetic Fiber Performance?
Standard PP macro synthetic fiber is widely used in fiber reinforced concrete, but its performance is often limited by material properties and manufacturing methods.
With lower tensile strength and a relatively smooth surface, conventional macro fibers provide limited anchorage and weak crack-bridging ability after cracking.
In real projects, this often results in insufficient post-crack strength, uneven performance, difficult finishing, and higher dosage just to meet basic requirements.
How Rimix™ 3D Improves Macro Fiber Performance
Rimix™ 3D is a high-performance upgrade to conventional macro fiber, engineered with advanced PP–PE composite materials.
It delivers higher tensile strength and modulus, allowing better load transfer across cracks and more stable post-crack performance.
Its optimized fiber geometry enhances bonding and pull-out resistance, while ensuring excellent dispersion without balling—making mixing and finishing easier on site.
Compared to standard macro fiber, Rimix™ 3D achieves stronger reinforcement with lower dosage, improving both performance and cost efficiency.
Upgrade Fiber Performance — Not Just Dosage
Simply adding more fiber does not always solve performance issues. The key is upgrading the material quality and structural performance of the fiber itself.
Rimix™ 3D provides higher efficiency per kilogram, helping achieve better crack control, improved workability, and more consistent concrete performance across different applications.
Rimix™ 3D vs Standard Macro Fiber
Key Factor
PP Macro Fiber
Rimix™ 3D Macro Fiber
Strength
400 – 500 MPa
550 – 620 MPa
Crack Performance
Limited after cracking
Strong and stable
Dosage Efficiency
Higher dosage needed
Lower dosage, higher efficiency
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Why Choose Us?
Proven Expertise & Greater Savings
Why Choose PIONEER® Technologies
Certified Technical Data
Access product-specific datasheets, lab testing reports, and international compliance certificates for seamless project approval.
Proven Global Experience
Trusted worldwide for high-performance concrete fiber reinforcement across industrial, commercial, and infrastructure projects.
Broad Micro Fiber Range
Complete micro synthetic fiber portfolio—including monofilament, fibrillated, ultra-fine, self-dispersing, and polyester fibers for shrinkage crack control.
Expert Dosage & Engineering Support
Get tailored product selection, precise dosage optimization, and technical submittal assistance from our concrete specialists.
26,500m² production base
Advanced fiber dispersibility
Exceptional tensile strength
FAQ
HGM® PAN is a polyacrylonitrile monofilament fiber developed for asphalt mixtures and pavement reinforcement applications. It is incorporated as short discrete fibers during asphalt production.
PAN stands for polyacrylonitrile. HGM® PAN uses polyacrylonitrile fiber material for asphalt applications.
No. HGM® PAN is designed for asphalt mixtures. PIONEER® HPM® PAN is a separate product for concrete and cementitious systems with different application, dosage and technical requirements.
Final dosage should follow the current HGM® PAN Technical Data Sheet and be selected according to fiber grade, asphalt mix design and required performance.
HGM® PAN can be evaluated in compatible hot-mix asphalt systems. Confirm dosage, addition sequence, plant temperature and fiber distribution for the selected mixture.