Domeshells

Basalt fibre concrete reinforcing products — rebar, chopped fibre, and mesh. Twice the tensile strength of steel, one-quarter the weight, non-corrosive, and non-conductive. Supplied by Domeshells Australia.

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Service overview

About

Basalt fibre concrete reinforcing is a superior alternative to traditional steel reinforcement. Made from a single material — crushed volcanic basalt — extruded through nozzles at approximately 1,500°C to produce continuous filaments, basalt fibre requires no added materials during production. No polymers, no resins, just basalt.

The result is a reinforcing material with twice the tensile strength of steel, one-quarter the weight, and complete resistance to corrosion, chemical attack, and electrical conductivity. Basalt fibre has the same thermal coefficient as concrete — important for structural performance over temperature cycles — and its filament diameter of 10–20 µm is well above the respiratory limit of 5 µm, making it a safe substitute for asbestos-based fibres in historical applications.

Domeshells supplies basalt fibre reinforcing products in three forms: basalt rebar (straight bars and coils), basalt chopped fibre (added to concrete mix for micro-crack control), and basalt mesh and geomesh (various weights and mesh sizes). Small quantities are available through the Domeshells shop. Bulk orders for project quantities are handled directly.

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Twice the tensile strength of steel

Two times the tensile strength of steel, while sharing the same thermal coefficient as concrete — important for long-term structural performance through temperature cycles.

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Twice the tensile strength of steel

Two times the tensile strength of steel, while sharing the same thermal coefficient as concrete — important for long-term structural performance through temperature cycles.

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One-quarter the weight of steel

Dramatically lighter than steel reinforcement — faster on site, lower freight costs, and reduced manual handling strain and injury risk.

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One-quarter the weight of steel

Dramatically lighter than steel reinforcement — faster on site, lower freight costs, and reduced manual handling strain and injury risk.

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Non-corrosive, non-conductive

Does not rust, is not subject to chemical attack, and does not conduct electricity. Suitable for marine, corrosive, and electromagnetic-sensitive environments.

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Non-corrosive, non-conductive

Does not rust, is not subject to chemical attack, and does not conduct electricity. Suitable for marine, corrosive, and electromagnetic-sensitive environments.

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Three product forms

Available as rebar (bars and coils in multiple diameters), chopped fibre (for concrete mix reinforcement), and mesh and geomesh (various mesh sizes and weights).

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Three product forms

Available as rebar (bars and coils in multiple diameters), chopped fibre (for concrete mix reinforcement), and mesh and geomesh (various mesh sizes and weights).

Capabilities & Features

Product assembly

Category

Details

Basalt Rebar


  • 100m and 500m coils for 4mm, 6mm, and 8mm diameters

  • All other sizes in cut lengths

  • Can be cut with angle grinder or bolt cutters

  • Does not rust or corrode

  • Highly desirable in corrosive environments

  • Available in 4mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm diameters







Basalt Chopped Fibre



  • Reinforces to mitigate micro-cracking

  • Available in lengths from 4mm up to 50mm

  • Small quantities: 7mm and 30mm fibres in 20kg bags via Domeshells shop

  • Larger quantities and custom lengths — contact directly

  • Added to concrete and render mixes for toughness



Basalt Mesh & Geomesh



  • 10mm square mesh 115gsm in 100m × 1.0m rolls

  • 25mm basalt fibre geogrid mesh

  • Small quantities via Domeshells shop (100m × 1m rolls)

  • Custom mesh sizes and weights available — contact directly

  • 5mm square mesh 115gsm in 100m × 1.0m rolls





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Our proven workflow

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Step 1

Design and planning

Step 2

Precision machining

Step 3

Final Inspection & dispatch

Common questions

Frequently asked questions

How does basalt fibre compare with steel reinforcement?

Basalt fibre has twice the tensile strength of steel and one-quarter the weight. It does not rust, is not subject to chemical attack, and is electrically non-conductive. It also has the same thermal coefficient as concrete, which is important for structural performance through temperature cycles. Handling on site is easier and faster due to the reduced weight, and the long-term durability advantage eliminates the concrete cancer risk associated with steel corrosion.

What applications is basalt fibre reinforcing suited to?

How is basalt fibre different from glass fibre (GFRP)?

Can basalt rebar be cut on site?

Is basalt fibre safe to handle?

How does basalt fibre compare with steel reinforcement?

Basalt fibre has twice the tensile strength of steel and one-quarter the weight. It does not rust, is not subject to chemical attack, and is electrically non-conductive. It also has the same thermal coefficient as concrete, which is important for structural performance through temperature cycles. Handling on site is easier and faster due to the reduced weight, and the long-term durability advantage eliminates the concrete cancer risk associated with steel corrosion.

What applications is basalt fibre reinforcing suited to?

How is basalt fibre different from glass fibre (GFRP)?

Can basalt rebar be cut on site?

Is basalt fibre safe to handle?

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