GFRP MasterBar

Glass Fiber Reinforced Polymer (GFRP) Bars for Concrete Reinforcement 

Super alternative to conventional steel rebar

CERTIFICATION & STANDARDS AND CODES

Globally, Regionally and Nationally



Certified by the Iraqi Ministry of Planning \  Central Organization for Standardization and Quality Control (COSQC) in Iraq

General Technical Requirements for Imported Materials 

Structural No. (10)


Material: Advanced Concrete Reinforcing Bars type (Glass Fiber) 

Approved by the Specifications Approval Authority in its meeting No.(478) on 2/3/2020


1- Requirements   

Is in accordance with Gulf Specification No. 2488/2015 GSO for (glass fiber-reinforced polymer rebars for concrete reinforcement) and the American Concrete Code ACI 440.1R.062488/2015 


2- The explanatory data   

Is in accordance with    Gulf Specification No. 2488/2015 GSO    for (glass-fiber-reinforced polymer rebars for concrete reinforcement) with mention of the country of origin


3 - Packing  

Is in accordance with    Gulf Specification No. 2488/2015 GSO    for (glass-fiber-reinforced polymer rebars for concrete reinforcement)


STANDARDS AND CODES:

The references below should be referred to by the Engineer regarding the application of GFRP bars for concrete reinforcement. All materials and workmanship conform to the requirements of the latest editions, including amendments, of the following standards, except as may be explicitly varied by this specification. The following list includes Canadian and International specification standards as well as bridge, building and highway design codes.

      

Canadian Standards and Codes

1. CAN/CSA-S807-19 (R2015) “Specification for Fibre-Reinforced Polymers”, Canadian Standards Association

       

2. CAN/CSA-S806-12 (R2017) “Design and Construction of Building Components with Fibre Reinforced Polymers” Canadian Standards Association


3. CAN/CSA-S6-14 (2014) “Canadian Highway Bridge Design Code” Section 16: Fibre Reinforced Structures, Canadian Standards Association

           

International Standards and Codes 

     

1. ASTM D7957 (2017) “Standard Specification for Solid Round Glass Fiber Reinforced Polymer Bars for Concrete Reinforcement”, American Society for Testing and Materials (ASTM International)


2. ACI 440.1R-15 (2015) “Guide for the Design and Construction of Structural Concrete Reinforced with Fiber-Reinforced Polymer Bars”, ACI Committee 440, American Concrete Institute


3. ACI 440.3R-12 (2012) “Guide Test Methods for Fiber-Reinforced Polymers (FRPs) for Reinforcing or Strengthening Concrete Structures” ACI Committee 440, American Concrete Institute

4. ACI 440.4R-04 (Re approved in 2011) “Prestressing Concrete Structures with FRP Tendons” ACI  Committee 440, American Concrete Institute

 

5. ACI 440R-07 (2007) “Report on Fiber-Reinforced Polymer (FRP) Reinforcement for Concrete Structures,” ACI Committee 440, American Concrete Institute


6. ACI 440.5-08 (2008) “Specification for Construction with Fiber-Reinforced Polymer Reinforcing Bar”, ACI Committee 440, American Concrete Institute


7. AASHTO GFRP-1 (2009) “AASHTO LRFD Bridge Design Guide Specifications for GFRP-Reinforced Concrete Bridge Decks and Traffic Railings”, American Association of State Highway and Transportation Officials

Comparison


Fiberglass Rebars are 2 times stronger than Steel Rebars and 10 times Lighter and give advantages for easy installations and cost saving demolition.

It is not correct to compare price wise with the same quantity of Steel & Fiberglass Rebars. Therefore, it would be appropriate to use the terms of diameters for equal strength.


Comparison Table between Fiberglass Rebars and Steel Rebars for same strength

Steel

Fiberglass





Diameter (mm)

Weight of 1m (kg)

Length of 1 tonne (m)

Diameter (mm)

Weight of 1m (kg)

Length of 1 tonne (m)





10

0.617

1.621

7

0.065

15.38





12

0.888

1.126

8

0.085

11.76





14

1.208

826

10

0.125

8





16

1.578

633

12

0.195

5.13





18

1.998

500

14

0.266

3.76





20

2.466

405

16

0.348

2.87





25

3.853

260

20

0.543

1.84





28

4.834

207

24

0.782

1.28





32

6.313

158

28

0.107

939





36

7.990

125

32

1.391

719






In other words, there is an economic benefit from the use of every 1 ton of Fiberglass Rebars to get an equal-strength.

Properties &  Technical Specifications

 All manufactured GFRP meet the requirements stated in CSA-S807-19. A Pultrusion method is used to  manufacture bars, with glass fiber rovings being pulled through a resin bath. Epoxy vinyl ester resin and  E-CR glass fiber are used unless otherwise specified by the customer. Bars are coated in sand to improve  the bonding surface between the bar and concrete.


We are capable of providing you Fiberglass Rebar with a range of Ø4mm ~ Ø32mm outer diameter and according to Customer requirements (Length, Color, Standard or sand blasted).

Parameters
Limits and values
Tensile Strength
≤ 800 Mpa
Tensile elasticity
≤ 50GPa
Pressing Strength
≤ 300 Mpa
Strength along the Cross-section Strength in concrete
≤ 150 Mpa
Strength in concrete
≤ 12 Mpa
Decrease in strength after storage in alkaline environment
≥%10
Temperature limits in concrete structures during operation
-60°C≤ & ≤+105°C

Specifier Notes for designing with GFRP:         

• Direct substitution of GFRP fiberglass rebar with steel rebar may not be possible in some cases due to difference in mechanical characteristics and surface configurations.
 

• Since the GFRP rebars have lower modulus of elasticity than steel rebars, the design in most  cases may be governed by serviceability limit state (SLS) rather than ultimate limit state (ULS). 

• The design codes provide a maximum limit for the stress in the GFRP bars under sustained load.


PRODUCT GUIDE SPECIFICATION 


 INTRODUCTION: 


Master Brick-BAR Glass Fiber Reinforced Polymer (GFRP) rebar, also referred to as Fiberglass Rebar is a stronger and lighter alternative to epoxy coated, galvanized or stainless-steel rebar. It is ¼ the weight of steel, superior in tensile strength, non-magnetic, and non-conductive rebar that has a life cycle of 100+ years. 

          

Fiberglass Rebar is a superior alternative to steel reinforcing in: 

Concrete exposed to marine or de-icing salts in bridge decks, median barriers, approach slabs, parking garage elements and salt storage facilities 

Concrete exposed to marine salts in seawalls, waterfront structures, floating marine docks and water breaks 

Concrete used near electromagnetic equipment such as light rail transit, MRI rooms in hospitals, airports and structures near high voltage cables, transformers and substations 

           

Other Applications include mining and tunneling, airport runways, swimming pools, ice skating arenas, and other concrete elements that may not have adequate concrete cover to protect steel reinforcing. 

           

Steel reinforcement of concrete has been used for many years. Its primary shortcoming is that it is easily corroded, and corrosion results in structural failure. Recently, there has been a significant amount of interest in using non-corroding FRP rebar to overcome the issue of corrosion. While the properties of steel reinforcing bars are well known to most structural engineers, the same cannot be said for FRP rebar. One of the main differences in properties between steel and FRP is the relatively low modulus of elasticity of FRP rebar.

High Demand Applications

Residential Buildings 

Roads

Power Generations

Bridges

Every kind of concrete structures

Marine applications

Industrial Buildings

Sewage constructions

Rehabilitation and Drainage works

Chemical Production Buildings

Metro and Tunnel Constructions

Concrete poles, Cable channels


Advantages of Using Fiberglass Rebars against Steel


  • Light weight; 4 times Lighter than steel. There is an advantage of 50%-80% from Transportation cost

  • Corrosion resistance with zero rust.

  • Dielectric capability; The most suitable material to build Laboratories  and specific buildings.

  • Temperature range; Fiberglass Rebars can be operated in a wide range temperature, between -60°C and +105°C.

  • Increased strength; More stronger than steel and 100+ years sustainability.

  • Easy for assembly; Due to weight advantages, it is more easy for construction works.

  • Length: Can be produced according to required length.

  • Chemical Strength; Fiberglass Rebars are resistant against aggressive components such as milk, bitumen, seawater, solvents or salts.

  • High thermal conductivity; The thermal conductivity index is many times higher than steel.

  • Coefficient of thermal expansion; Composite Rebars have the same coefficient of thermal expansion as concrete, therefore it does not develop cracks in concrete structures.

Manufactured with high quality glass fiber with polyester resin or optional vinyl ester resin. MasterBar is built to be stronger, lighter, and rust free! MasterBar is non-magnetic, making it electrically non-conductive as well as thermally non-conductive. Packaged in 50 piece bundles for easy shipping and handling.


INSTALLS LIKE STEEL

Tie it off and chair it up just like steel!

NON-CONDUCTIVE

Electrically an d thermally non-conductive

SAVING COSTS

Do your math and see

STRONGER THAN STEEL

2x stronger than steel in tensile strength

LIGHTWEIGHT

Large labor & freight savings

RUST FREE

Does not corrode, extended structure life

Its advantages are not comparable to any other reinforcing bars!

Place your order by contacting us today!