Asphalt Matrix Reinforcement
Basalt fibers disperse throughout the asphalt mixture, forming distributed reinforcing elements within the aggregate–binder structure and supporting more uniform internal reinforcement.
BASALT FIBER FOR ASPHALT & CONCRETE
Basalt Fiber
High-Strength Fiber Reinforcement for Asphalt, Concrete & Engineering Applications
POLYVIA™ Basalt Fiber is a high-strength inorganic reinforcement fiber designed for asphalt mixtures, concrete, mortar and infrastructure applications.
With ≥1200 MPa tensile strength and ≥75 GPa elastic modulus, uniformly dispersed basalt fibers reinforce the material matrix, distribute localized stress and support crack resistance and engineering performance under demanding service conditions.
WHAT IS BASALT FIBER?
POLYVIA™ Basalt Fiber is an inorganic mineral fiber produced from natural basalt rock and processed into short fibers for reinforcement in asphalt, concrete, mortar and compatible engineering material systems.
With high tensile strength, high elastic modulus and stable inorganic fiber characteristics, dispersed basalt fibers provide multidirectional reinforcement throughout the material matrix.
This makes Basalt Fiber suitable for applications ranging from asphalt pavement and transportation infrastructure to concrete, mortar and high-performance cementitious materials.
Material
Natural Basalt-Based Mineral Fiber
Material Type
Inorganic Mineral Fiber
Appearance
Brown / Golden-Brown Fiber
Primary Function
Distributed Fiber Reinforcement
Application Systems
Asphalt · Concrete · Mortar · Engineering Composites
HOW BASALT FIBER WORKS
Asphalt Stress Distribution
Dispersed basalt fibers interact with the surrounding asphalt matrix, helping distribute localized stresses associated with traffic loading, repeated deformation and temperature variation.
Cementitious Crack Bridging
Basalt fibers intersect developing micro-cracks and remain embedded across the crack plane, helping restrict crack opening and maintain stress transfer through the cementitious matrix.
Cementitious Stress Redistribution
Fibers bridging cracked regions help transfer tensile forces beyond localized crack zones, supporting broader stress distribution and continued integrity of the reinforced matrix.
APPLICATIONS
ASPHALT APPLICATIONS
Road & Highway Pavements
Basalt Fiber can be incorporated into AC, SMA, OGFC and other compatible asphalt pavement systems, supporting mixture reinforcement under traffic loading and temperature-related service conditions.
Airport Runways
Basalt Fiber can be used in compatible asphalt and concrete runway materials where repeated loading, pavement integrity and crack resistance are important engineering requirements.
Bridge Deck Pavements
For compatible bridge deck pavement systems, Basalt Fiber provides distributed reinforcement where traffic loading, temperature variation and crack development must be considered together.
Fiber-Reinforced Asphalt Surface Systems
For specialized asphalt surface treatments and fiber-reinforced pavement systems, Basalt Fiber can support mixture integrity and reinforcement under application-specific service conditions.
CONCRETE & INFRASTRUCTURE APPLICATIONS
Concrete & Cement Mortar
Dispersed Basalt Fibers reinforce cementitious matrices in multiple directions, helping bridge developing cracks and redistribute localized tensile stress.
Hydraulic & Water Conservancy Engineering
Basalt Fiber can be incorporated into compatible concrete materials for dams, canals and hydraulic infrastructure, providing distributed reinforcement within the cementitious matrix.
Industrial Floors & Concrete Pavements
Basalt Fiber can be incorporated into compatible industrial flooring and concrete pavement systems, providing distributed reinforcement to support crack control, stress distribution and material integrity under service loading.
UHPC & High-Performance Concrete
Basalt Fiber can be evaluated in UHPC and high-performance concrete where fiber dispersion, matrix rheology and reinforcement performance must be carefully coordinated.
SYSTEM COMPATIBILITY
FORMULATION & PROCESSING
Design Basalt Fiber as Part of the Complete Material System
Basalt Fiber performance depends on how effectively the fiber works with the surrounding matrix, rheology and production process. Fiber length and dosage should therefore be evaluated together with material composition, dispersion behavior and processing conditions.
Matrix Compatibility
Basalt Fiber should be evaluated with the complete material matrix, including aggregate gradation and asphalt binder in pavement systems, or cement, SCMs and other constituents in concrete and mortar.
Rheology & Workability
The material should maintain sufficient flow, workability and stability for effective fiber incorporation. This is particularly important in UHPC and low-W/B cementitious systems, where rheology strongly influences fiber distribution.
Fiber Dispersion
Uniform fiber distribution is essential for effective reinforcement. Fiber length, dosage and matrix characteristics should be balanced to minimize fiber concentration, uneven distribution and processing inconsistency.
Processing Conditions
Mixing sequence, mixing time, equipment and production conditions should be matched to the material system. Asphalt, conventional concrete and UHPC require different processing strategies for effective fiber incorporation.
TECHNICAL DATA
| Property | Specification |
|---|---|
| Appearance | Brown to Dark Gray Chopped Fibers |
| Tensile Strength | ≥1200 MPa |
| Elastic Modulus | ≥75 GPa |
| Elongation at Break | ≤3.1% |
| Density | 2.6–2.8 g/cm³ |
| Alkali Resistance | ≥75% |
| Moisture Content | ≤0.2% |
DOSAGE & MIXING GUIDANCE
Recommended Basalt Fiber Dosage
2–5 kg/m³
Use this range according to the supplied product guidance. Final dosage should be verified according to the mixture composition, processing behavior, fiber dispersion and target performance.
Mixing Guidance for Concrete & Cementitious Systems
| Stage | Guidance | Key Control |
|---|---|---|
| Add Aggregate | Introduce the required aggregate. | Batch Preparation |
| Add Basalt Fiber | Add the required quantity of fiber uniformly. | Fiber Distribution |
| Add Cement | Introduce cement and other dry components. | Even Incorporation |
| Add Water | Add mixing water according to the formulation. | Controlled Addition |
| Mix Thoroughly | Continue mixing until fibers are uniformly dispersed. | Fiber Dispersion |
| Final Adjustment | Adjust final water or workability as required. | Workability Control |
Mixing Sequence
Aggregate → Basalt Fiber → Cement → Water → Thorough Mixing → Final Adjustment
Asphalt Systems
For Asphalt Concrete (AC), Stone Mastic Asphalt (SMA), OGFC and other asphalt mixtures, fiber addition should be matched to the actual production process rather than following the cementitious sequence above.
The addition point and mixing time should be established according to mixture design, aggregate temperature, fiber dispersion, asphalt plant configuration and binder addition sequence.
Key Processing Principle
Uniform Fiber Addition → Effective Dispersion → Controlled Mixing → Production Verification
PACKAGING & STORAGE
PACKAGING & HANDLING
Basalt Fiber Packaging & Storage
POLYVIA™ Basalt Fiber is supplied in 1–5 kg inner plastic bags and 10–25 kg woven bags or cartons, with approximately 500 kg per pallet. Customized packaging is available upon request.
Store in the original sealed packaging in a dry, protected environment, away from moisture, contamination and package damage.
TECHNICAL DOCUMENTS & SUPPORT
Technical Data Sheet
Product specifications, dosage and application guidance.
Download ↓
Safety Data Sheet
Safety, handling, storage and product information.
Download ↓
Certificate of Analysis
Batch-specific quality parameters and inspection data.
Request COA ↓Application Guide
Fiber selection, dosage, processing and application guidance.
Download ↓FREQUENTLY ASKED QUESTIONS
What is Basalt Fiber used for? +
Basalt Fiber is used as a distributed reinforcement material in asphalt, concrete, mortar and compatible engineering systems, including road pavement, bridge and tunnel materials, hydraulic engineering and selected UHPC formulations.
What is the recommended dosage of Basalt Fiber? +
POLYVIA™ recommends 2–5 kg/m³ as the product guidance range. Final dosage should be verified according to the mixture design, fiber dispersion, production conditions and required performance.
Can Basalt Fiber be used in asphalt concrete? +
Yes. Basalt Fiber can be incorporated into compatible asphalt concrete and fiber-reinforced asphalt mixtures to provide distributed reinforcement within the aggregate–binder system.
Can Basalt Fiber be used in SMA and OGFC? +
Yes. It can be evaluated for Stone Mastic Asphalt (SMA) and Open-Graded Friction Course (OGFC). Dosage and incorporation should be matched to the aggregate gradation, binder system and production process.
Can Basalt Fiber be used in concrete and mortar? +
Yes. Uniformly dispersed Basalt Fibers provide reinforcing elements throughout compatible concrete and mortar matrices and can help bridge developing cracks and redistribute localized tensile stress.
How is Basalt Fiber added to concrete? +
The supplied guidance uses:
Aggregate → Basalt Fiber → Cement → Water → Mixing → Final Water Adjustment
Mix until the fibers are uniformly dispersed throughout the mixture.
Can Basalt Fiber be used in UHPC? +
Basalt Fiber can be evaluated in compatible UHPC formulations, but suitability depends on matrix rheology, fiber dispersion, superplasticizer compatibility and the required mechanical performance.
Can Basalt Fiber replace steel reinforcement? +
Basalt Fiber should not automatically be considered a replacement for structural steel reinforcement. Short dispersed fibers provide distributed reinforcement and crack-control support, while structural reinforcement should follow engineering design requirements.
Find the Right Basalt Fiber Solution for Your Application
Working with asphalt concrete, SMA, OGFC, concrete, mortar or UHPC? Share your application, mixture design, production process and target performance with POLYVIA for product evaluation and technical support.