• Composite Rebar

Composite Fibre Technologies

Reinforced Concrete is a common building material for construction of facilities and structures.

While concrete has high compressive strength, it has limited tensile strength. To overcome these tensile limitations, reinforcing bars are used in the tension side of concrete structures, and steel has historically been used as an effective and cost-efficient reinforcement material.

However, steel is susceptible to oxidation (rust), especially in coastal areas, locations where salt contaminated aggregates are used in the concrete mixture, and sites where aggressive chemicals and ground conditions exist. Where corrosion of steel reinforcement occurs, the resulting materials have a larger volume (2-5 times) than the metal product from which they were originally derived, leading eventually to cracking and spalling and further deterioration of the steel. The combination of ongoing deterioration and loss of reinforcement properties ultimately requires potentially significant and expensive outlays for repair and maintenance, and possibly the endangerment of the structure itself.

Wagners CFT composite reinforcement bar

Repair or replacement costs associated with concrete degradation and spalling in Australia are estimated at $26 billion dollars.

The solution is V•ROD® Rebar, a composite fibre bar that will never corrode.

Wagners CFT: V•ROD

The benefits of composite fibre reinforcement bar:

  • Corrosion Resistance - will not rust, and are impervious to the action of salt ions, chemicals, and the alkalinity inherent in concrete.
  • Superior Tensile Strength - composite rebar produced by pultrusion offers a tensile strength up to twice that of steel.
  • Thermal Expansion - V•ROD® rebar offers a level of thermal expansion comparable to concrete due to it 80% silica content.
  • Electrical and Magnetic Neutrality - contains no metal, and will not interfere with the operation of sensitive electronic devices such as medical MRI units or electronic testing devices.
  • Thermal insulation - highly efficient in resisting heat transfer, such as from building exteriors to interiors.
  • Lightweight - weighs approximately one-quarter the weight of an equivalent size steel bar, offering significant savings in both placement and use.

Utilising its inherent features & benefits, V•ROD® provides cost effective and long-term applications as a concrete reinforcing bar, particularly when analysed on a life-cycle cost basis.

  • Structures built in or close to sea water - quays, retaining walls, piers, jetties, caissons, decks, piles, bulkheads, floating structures, canals, roads and buildings, offshore platforms, swimming pools and aquariums.
  • Applications subjected to corrosive agents - wastewater treatment plants, petrochemical plants, pulp/paper mills, liquid gas plants, pipelines / tanks for fossil fuel, cooling towers, chimneys, mining operations of various types, nuclear power and dump plants.
  • Applications requiring low electric conductivity or electromagnetic neutrality - aluminum and copper smelting plants, manholes for electrical and telephone communication equipment, bases for transmission / telecommunication towers, airport control towers, magnetic resonance imaging in hospitals, railroad crossing sites and specialized military structures.
  • Tunnelling / boring applications requiring reinforcement of temporary concrete structures - mining walls, underground rapid transit structures and underground vertical shafts.
  • Weight sensitive structures - concrete construction in areas of poor load bearing soil conditions, remote geographical locations, sensitive environmental areas, or active seismic sites posing special issues that the use of lightweight reinforcement will solve.
  • Thermally sensitive applications - apartment patio decks, thermally insulated concrete housing and basements, thermally heated floors and conditioning rooms.
Case study - 23rd Ave/Gateway Blvd - Edmonton
 

Case study - 23rd Ave/Gateway Blvd - Edmonton

Case study - St.Laurent station - Ottawa
 

Case study - St.Laurent station - Ottawa

Case study - Wayne Gretzky Pkwy - Brantford
 

Case study - Wayne Gretzky Pkwy - Brantford

Case study - Hawk Lake Bridge - Hwy 17
 

Case study - Hawk Lake Bridge - Hwy 17