Distributed reinforcement
Fibres are mixed throughout the material rather than installed as a continuous grid.
Concrete, mortar & asphalt
Chopped basalt fibre24 ± 1 mm
Chopped basalt strands are produced from volcanic basalt rock and coated with X-SBR (styrene-butadiene). They are dispersed through concrete, mortar or asphalt mixes. The fibres help bridge small cracks and can contribute to toughness and crack control, depending on the mix design, dosage and dispersion.
≥1,000MPa breaking strength specification
1,420MPa reported test result
24 ± 1 mm / Concrete, mortar & asphaltTECHNICAL INFORMATION
Product
specifications.
Source: replacement BasaltechSA fibre flyer supplied on 1 October 2026. Specification limits and reported test results are shown separately. The underlying laboratory report was not supplied with the flyer. Request test methods, conditioning and product documentation before specification.
Download product pamphlet ↗| Property | Specification | Reported test result |
|---|---|---|
| Fibre length | 24 ± 1 mm | 23.8 mm |
| Fibre diameter | 16 ± 1 µm | 16.6 µm |
| Breaking strength | ≥1,000 MPa | 1,420 MPa |
| Elongation at break | 2 to 3% | 2.4% |
| Strength retention | ≥85% | 90% |
| Density | ≥2.6 g/cm³ | 2.63 g/cm³ |
| Moisture content | ≤0.20% | 0.05% |
| Oil absorption | ≤6.00% | 4.96% |
Coating: X-SBR (styrene-butadiene). Custom lengths are available on request. Strength-retention test conditions are not stated in the flyer; request the laboratory report to assess suitability for the intended exposure.
Download replacement fibre flyer (PDF) ↓PRODUCT OVERVIEW
MATERIAL FUNCTION
& PERFORMANCE.
X-SBR coated chopped basalt strands for concrete, mortar and asphalt mixes, including floors, precast elements and pavements. Performance depends on the complete design, material compatibility and installation.
Crack control
Fibre bridging can help restrain the growth of small cracks in a properly designed mix.
Toughness
Potential improvements in impact and post-crack behaviour depend on dosage and the base mix.
Non-metallic fibres
The basalt reinforcement does not rust like steel fibres. Long-term performance depends on the exposure and mix.
PRODUCT APPLICATIONS
Designed into
your project.
Confirm product suitability with the responsible designer and request the current technical information from our team.
- 01Industrial and warehouse floors
- 02Precast concrete components
- 03Concrete pavements and roads
- 04Asphalt mixes
MIX DESIGN INPUTS
Application-specific dosage.
Published guidelines for planning a trial mix. Confirm the dosage and mixing procedure with the responsible designer before use.
| Application | Guideline dosage |
|---|---|
| Residential concrete floors | 1.5 to 2.5 kg/m³ |
| Industrial floors | 2.5 to 4.0 kg/m³ |
| Warehouse slabs | 3.0 to 5.0 kg/m³ |
| Concrete pavements | 3.0 to 6.0 kg/m³ |
| Thin concrete roads | 4.0 to 6.0 kg/m³ |
| Precast elements | 2.0 to 4.0 kg/m³ |
| Asphalt mixes | 3 to 5 kg per tonne of asphalt |
These are the flyer’s detailed table values. Its combined industrial and warehouse summary gives a broader range; use the separate application rows above. Final dosage is subject to mix design and the engineer’s specification. Confirm through project-specific mix trials.
BEFORE YOU START
Mixing considerations.
Use these as planning points alongside the approved project specification and supplier instructions.
- Confirm the fibre specification, intended performance and trial dosage with the mix designer.
- Follow the supplier’s mixing sequence and disperse fibres uniformly to avoid clumping.
- Check workability, finishing and compaction on a trial batch.
- Validate the required performance with the approved mix and test programme.
PRODUCT QUESTIONS
More about
chopped basalt fibre.
What is the difference between fibre and mesh?
Chopped fibre is dispersed throughout a mix. Mesh is a continuous grid installed at a defined position within a pavement or layerworks system. The two products serve different reinforcement functions.
How much basalt fibre should be added?
The replacement flyer gives application-specific guidelines, including 2.0 to 4.0 kg/m³ for precast elements and 3 to 5 kg per tonne of asphalt. Refer to the dosage table for the intended application. Final dosage depends on mix design and the responsible engineer’s specification.
Where can I get current product specifications?
The specification table and downloadable replacement flyer list the current published figures. The flyer specifies breaking strength of at least 1,000 MPa and reports a tested value of 1,420 MPa. These are fibre properties, not the strength of the finished concrete or asphalt. Request the underlying test report for your project.
Can fibre replace the specified reinforcing steel?
Do not assume a direct substitution. Any change to structural reinforcement requires a design assessment and approval by the responsible engineer.
REINFORCEMENT GUIDES
WHY BASALT?
Material properties, applications and product data for chopped basalt fibre and road mesh. Find the facts for your next project.
01 / CHOPPED BASALT FIBRE
Basalt fibre for concrete reinforcement
How basalt fibre works in concrete, how it differs from steel reinforcement, and the properties of our 24 mm product.
Read the guide02 / BASALT MESH GEOGRID
Basalt mesh for road and asphalt reinforcement
A flexible basalt grid for pavement layers and asphalt overlays, supplied in 295 m² rolls with a tensile rating of ≥92 kN/m.
Read the guide03 / QUANTITIES & PRICING
Basalt reinforcement quantities and pricing
Convert your specified dosage or pavement area into product quantities and get a quotation for delivery to your site.
Read the guidePROJECT SPECIFICATION & SUPPLY
PRODUCT DATA.
TECHNICAL SUPPORT.
Speak to our team about product selection, specifications and supply.