Descripción del producto

Advantages:

- Cuttable/shearable

- Lightweight-easy to handle

- Fully threaded system

- Complete non-metallic system

- Corrosion resistance

- Hight tensile capacity

- Length up to *5 Feet/7meters

- Lower maintenance cost

- Lower transportation cost

- Proper bonding to concrete

- Good thermal insulation

- Able to mold complex shapes

Based on features above, FRP rebars appear to be promising alternative to steel reinforcement in concrete structures such as marine structures, parking structures, bridge decks, highway under extreme environments, subway tunnel ,airport construction, Waterway Engineering and structures highly susceptible to corrosion and magnetic fields.

Introduction

Since the mechanical properties of GFRP fiberglass rebar differ from those of steel, design engineers should consider recommendations made in published design and construction guides prior to using GFRP fiberglass rebar in their structures.

Several important differences between steel and GFRP fiberglass rebar should be considered prior to designing your concrete structures using fiberglass rebar:

• Direct substitution of GFRP fiberglass rebar with steel rebar may not be possible in some cases
• A lower modulus of elasticity and shear strength may impact the number of reinforcing bars required
• GFRP fiberglass rebar has a limited maximum sustained shear stress.
• Guaranteed design tensile strength of fiberglass rebar has to be de-rated in certain applications
• Some types of GFRP fiberglass rebar are not suitable for certain pre-stressing or post-tensioning applications

There are extensive publications existing dealing with the design and usage of GFRP rebar. They include but are not limited to:

Canada

• CAN/CSA-S***6 (***6) Fibre Reinforced Structures, Canadian Highway Bridge Design Code Canadian Standards Association, pg.******8
• CAN/CSA-S*****2 (R***7) Design and Construction of Building Components with Fibre-Reinforced Polymers Canadian Standards Association

Through ISIS (Intelligent Sensing for Innovative Structures) Canadas group of researchers the following are available:

• Manual No. 3 (Version 2) Reinforcing Concrete Structures with Fibre Reinforced Polymers (FRPs), Dr. Sami Rizkalla, Dr. Aftab Mufti
• Manual No. 4 Strengthening Reinforced Concrete Structures with Externally-Bonded Fibre Reinforced Polymers (FRPs), Dr. Kenneth Neale
• Manual No. 5 Prestressing Concrete Structures with FRPs Dr. Ivan Campbell

USA 

• ACI **0.1R**6 (***6) Report on Fiber Reinforced Poler (FRP) Reinforcement for Concrete Structures, ACI Committee **0, American Concrete Institute
• ACI **0R**7 (***7) Report on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures ACI Committee **0, American Concrete Institute
• ACI **0.***8 (***8) Specification for Construction with Fiber-Reinforced Polymer Reinforcing Bar ACI Committee **0, American Concrete Institute
• ACI **0.***8 (***8) Specification for Carbon and Glass Fiber-Reinforced Polymer Bar Materials for Concrete Reinforcement, ACI Committee **0, American Concrete Institute
• AASHTO GFRP*1 (***9) AASHTO LRFD Bridge Design Guide Specifications for GFRP-Reinforced Concrete Bridge Decks and Traffic Railings, American Association of State Highway and Transportation Officials