Alkali Proof Basalt Fiber Chopped Strands for Durable Asphalt Pavement Reinforcement


The Problem: Asphalt pavements fail prematurely under heavy traffic, temperature extremes, and moisture intrusion. Cracking, rutting, fatigue damage, and water stripping shorten service life and drive up maintenance costs year after year. Traditional reinforcement methods often fall short—steel fibers corrode and are difficult to mix, polyester fibers degrade in alkaline environments, and lignin fibers offer limited mechanical reinforcement.

The Solution: Our alkali-proof basalt fiber short cut strands are engineered specifically for asphalt concrete reinforcement. Made from 100% natural volcanic rock, these inorganic fibers form a heat-stable three-dimensional micro-network within the asphalt mixture that restrains crack propagation, resists deformation, and extends pavement life.

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Why Choose Our Basalt Fiber?

Superior Alkali Resistance – Unlike glass or polyester fibers that degrade in the alkaline asphalt environment, our basalt fibers maintain structural integrity with an alkali resistance retention rate of ≥75%. Tensile strength retention remains as high as 75% in alkaline conditions.
Exceptional Mechanical Properties – Tensile strength ≥1200 MPa, elastic modulus ≥75 GPa, elongation at break ≤3.1%. The fiber forms a strong bond with asphalt—bonding strength and tensile adhesion are nearly 100 times that of ordinary basalt fibers.
Easy to Mix & Disperse – Surface-treated strands disperse uniformly during mixing without clumping or balling. No special equipment needed—simply dry-blend with hot aggregates before adding asphalt binder.
Cost-Effective & Sustainable – Natural basalt rock requires no chemical additives during production. Competitive pricing versus polyester and steel fibers, with superior performance.

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Performance That Pays for Itself
Benefit Improvement
High-temperature rutting resistance +30% or more
Low-temperature crack resistance +40% or more
Fatigue life 2× or more
Crack propagation rate reduction 39.6–55.4%
Pavement service life Significantly extended

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Applications
· Highways & urban roads
· Airport runways & aprons
· Bridge decks & tunnel pavements
· Stone mastic asphalt (SMA) & OGFC
· Overlays & thin-layer pavements

Technical Specifications
· Material: Basalt (inorganic)
· Cut lengths: 3 / 6 / 9 / 12 mm (custom available)
· Density: 2.6–2.8 g/cm³
· Moisture content: ≤0.2%
· Recommended dosage: 0.2–0.4% of total mix mass (≈2–4 kg per ton of asphalt mix)
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Stop repairing what you could have prevented. Add basalt fiber once—and pave for the long haul.

General Specifications