Durostone® FRP Rebars were especially developed for demanding fields of application in aggressive environments, where reinforcement bars have to withstand permanently high mechanical and corrosive loads. Durostone® FRP Rebars have outstanding properties for such requirements. For example:

Corrosion resistance

Building structures next to sea and in coastal regions which are exposed to severe corrosion:

harbour installations, docks, underwater tunnels, desalinisation plants, breakwaters, embankments, quay walls, windmills, roads and buildings and concrete roadbases exposed to sea spray

Alkali-resistance & durability

All concrete structures and transport routes exposed to frost and thawing saltwater:

bridge decks, road construction, air fields, concrete casings, flood protection walls; canals and harbour basins (fresh water engineering), lock walls, dam projects

Chemical resistance

Structures in aggressive chemical media environments:

Sewage treatment and biogas plants, refineries, paper mills, sewer systems, underground garages also without floor coatings, industrial floor slabs, agrarian buildings such as silage and fertiliser silos

Easy machinability

Special civil engineering, tunnel construction, mining and inner-city infrastructure buildings:

temporary and permanent anchors. Easy cuttability for tunnelboring machines (TBM) in soft eyes, concrete reinforcement for underground railway construction and road tunnels, rock face stabilisation, soil nails, anchor pins, diaphragm walls, bored piles

No conductivity & no frequency disturbance

Sensitive functional areas in which electric and thermally non-conductive, induction-free, non-magnetic or signalpermeable reinforcements are necessary:

high voltage installations, transformer buildings, railway and airport structures, slab roadways, frequency sensitive switching and control installations, telecommunications infrastructures, industrial systems with driverless transport systems, medical and research institutions

High tensile strength & minimum component thickness

Prestressing technology:
Durostone® BFRP Rebars with basalt fibre reinforcing are especially suitable for prestressing technology with very high tensile strength

Filigree and solid prefabricated concrete parts:
lightweight material for core-insulated double walls, sandwich elements, solid concrete panels and façade elements with high quality design surfaces. Concrete preformed structures in tunnel construction, sewer pipes, shaft accesses, concrete sleepers

High corrosion resistance – NO RUST

• Permanent alkali and chemical resistance and high acid resistance, also in very demanding environments
• Resistant to concrete carbonation and in the event of acidic impact, e. g. aggressive mountain water or industrial waste water
• Prevents concrete spalling and protects static structural parts

High economic efficiency – REDUCTION OF LIFE CYCLE COSTS

• Significantly reduced maintenance and service life costs
• Considerably lower to no repair and replacement costs
• More quality, but no higher construction costs; instead, savings potential compared to steel
• Cost reduction of structures through minimal requirements for concrete covering (rod diameter + 10 mm), through possible use of conventional concrete qualities or through elimination of expensive additives and protective coatings
• Up to fourfold savings in transport costs due to 73 % lower deadweight

Greater mechanical stability with low weight – HIGH STRENGTH

• Enormous tensile strength and first class durability of mechanical properties
• Very good bond strength properties for ideal force transmission
• Lightweight material with only 27 % of the weight of steel
• Minimised deadweight of concrete structures. Permits filigree structures
• Much easier and less dangerous handling on building sites

High safety and functionality

• No electric or electromagnetic conductivity
• No magnetism and no disruption of sensitive electronic installations
• Transparent for radar and radio waves
• Very low heat conductivity, as a result avoidance of thermal bridges
• Easy machinability. Easy cutting properties of the reinforcement prevents damage to tools and machinery in civil engineering and tunnel construction

Long service life and extremely high quality – SUSTAINABLE

• High quality corrosion resistant fibres and highly durable quality resins and the precise Durostone® FRP Rebar manufacturing process ensure outstanding qualities and an innovative building material with uniquely bundled properties
• Sturdy, durable composite reinforcement in concrete
• Much longer service life for heavily stressed structures

Production range

• Standard sizes: 10 mm, 13 mm, 16 mm, 19 mm, 25 mm, 32 mm
• Other tailor-made sizes available on request