SET OF 10 PIECES BFK/CFK/GFK rods with profiling are manufactured using pultrusion technology. The rod is a reinforcing bar made of composites and an alternative to the well-known reinforcing steel.

GRP - Glass fibre reinforced plastic (GFRP)

CFRP - Carbon Fibre Reinforced Plastic (CFRP)

BFK - Basalt Fibre Reinforced Plastic (BFRP)

The profiled reinforcing bars developed by us are characterised by very high corrosion resistance with outstanding tensile strength. Another advantage is the equal temperature expansion behaviour of GRP/CFRP and BFRP profiled rods and the concrete matrix surrounding them, which reduces temperature-induced stresses. The profiled bars produced in one process step are manufactured on fully automated equipment using a newly developed process. The surface of reinforcing bars features a continuous series of ribs or dimples to promote better bonding with the concrete and prevent slippage. Composite bars can be made of GRP glass fibres , CFRP carbon fibres or BFK basalt fibres. They differ in technical properties and also weight.

Advantages:

Low weight

High corrosion resistance & durability

Low concrete cover sufficient

High chemical resistance

Higher tensile strength than reinforcing steel (e.g. high ductility reinforcing steel)

Diameter can be adapted to application/loads

Lower need for reinforcement bars compared to steel due to high tensile strength

Application areas for all materials: (CFRP/BFRP/GFRP):

Design elements

Concrete reinforcement

Restorations / refurbishments

Technical properties in the composite:



High corrosion resistance:

High alkali and chemical resistance as well as high acid resistance

Resistant to industrial waste water and chemical liquids

absolutely not rusting

High mechanical properties:

Higher tensile strength and durability compared to steel

Positive bond stress properties for best force transmission

Lightweight material with only 27 % of the weight of steel

Reduced dead load of different concrete structures.

Advanced properties:

No electrical or electromagnetic conductivity

Easy to machine or cut to size

Safe to handle on the construction site

No magnetism therefore no interference with electronic equipment

Transparent to radar, radio and radio waves

Very low thermal conductivity

Long life in concrete