© 2012-2018 by B&B FRP MANUFACTURING INC. IT DEPARTMENT ALL RIGHTS RESERVED

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WHY GFRP REBAR & NOT STEEL

Composite rebar, glass fiber reinforced polymer (GFRP) reinforcement bar is the solution to corrosion of reinforced concrete structure. Fiberglass Rebar is an excellent replacement for conventional types of steel rebar & here is why? 

 

Limitation with Steel rebar: 

 

  • Heavy (Increase logistic cost as well as adding more weight to the structure which affects the natural frequency of concrete structure)  

  • Corrosive (Even Stainless-Steel rust while it is 2 to 4 times more expensive than GFRP)

  • Very high stiffness (Structure becomes very stiff & rigid) 

  • Very limited fatigue resistance (Cyclic loading

  • High thermal & electrical conductivity 

  • Very high maintenance fee for Black-steel, Galvanized & Epoxy-coated rebar

  • more?!!!

 

 

MST-BAR® & MFX-BAR® GFRP rebar, composite rebar, fiberglass rebar is very suitable to use in the applications where steel rebar is limited to its properties. Where corrosion is a problem such as in a humid, coastal & cold countries ,MST-BAR® & MFX-BAR® can be used to take away the corrosion problem and all the costs associated with corrosion and maintenance. 

 

The initial cost of using MST-BAR® & MFX-BAR® at early stage of the project may not increase the cost of the project if a proper design and factors are to be considered. Using GFRP rebar may reduce the cost of the project up to 5% & the structure does not rquire any major maintenance for next 100 years. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MST-BAR® & MFX-BAR® GFRP rebar solve the limitation of steel bar by:

 

  • Light weight ( x4 lighter) 

  • Milder stiffness compare to steel (allows structures to be less rigid)

  • Thermal and electrical isolated 

  • 100% corrosion resistance to alkalis and acidic environment

  • Zero maintenance for 100 years  

 

 

DESIGN CODE

 

FRP Rebar does not behave in the same manner as steel rebar because the mechanical properties are different in some cases. FRP rebar has higher strength but lower elastic of modulus, therefore direct replacement of steel is not always possible with FRP rebar and FRP design codes required.

Following design codes required in design with FRP rebar:

Canada

CSA

  • CAN/CSA-S6-06(Canadian highway bridge design code)

  • CAN/CSA-S806-02(Design and construction of building component with FRP)

ISIS

  • Design Manual NO.3 (reinforcement concrete structure with FRP)

  • Design Manual NO.5 (Prestressing concrete structure with FRP )

USA

ACI

  • ACI 440.1R-06

  • ACI 440R-07

  • ACI 440.5-08

  • ACI 440.6-08

  • AASHTO GFRP-1

 

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