Fiberprofil Americas-Gfrp presentation
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Transcript of Fiberprofil Americas-Gfrp presentation
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[email protected]–888–99–REBAR(73227)
5522 – 36 StreetEdmonton, AlbertaT6B 3P3T:780 – 448 – 9338 F:780 – 448 – 9338
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Romans are the pioneers of the concrete revolution. Their structures have lasted close to 2000 years.
In 1995, Intelligent Sensing for Innovative Structures (ISIS) was formed by the Federal Government to investigate the crumbling infrastructure of North America.
Today’s Steel-reinforced concrete will begin to deteriorate after 10 to 15 years and will generally require major repairs after 25 years.
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Rust Staining, Business Entryway, Edmonton, AB
STAGE 1BLEEDING
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De-lamination Cracking, 19 Year Old Ontario Bridge, MTO 2005
STAGE 2CRACKING
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Corrosion Induced Cracking, 23 Yr Old Ontario Bridge, MTO 2007
STAGE 3SPALLING
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Chloride Induced Corrosion, Roof of 13 Year Old Swimming Pool Collapses, Switzerland
STAGE 4FAILURE
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• In 1997, Dywidag-Systems International contacted BP Automation/Brandstrom Engineering Ltd. to develop a threaded fibreglass rebar system.
• In 1999, the company developed threaded fibreglass manufacturing equipment.
• In 2000, BP Composites Ltd. was formed to supply DSI and the mining industry with fibreglass rebar and rock bolts.
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• In 2006, ISIS Canada developed a Product Specification Manual for GFRP reinforcement for civil application.
• BP Composites Ltd. adjusted and expanded their GFRP process to create a family of rebar sizes suitable for concrete reinforcement.
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• ISIS Canada developed...• Canada
- CAN/CSA-S606 (2006) Fibre Reinforced Structures, “Canadian Highway Bridge Design Code” Canadian Standards Association, pp.693-728
- CAN/CSA-S806-02 (R2007) “Design and Construction of Building Components with Fibre-Reinforced Polymers” Canadian Standards Association
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• USA- ACI 440.1R-06 (2006) “Guide for the Design and
Construction of Structural Concrete Reinforced with FRP Bars”, American Concrete Institute
- AASHTO GFRP-1 (2009) “AASHTO LFRD Bridge Design Guide Specifications for GFRP-Reinforced Concrete Bridge Decks and Traffic Railings”, American Association of State Highway and Transportation Officials
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• Material Code Requirements for GFRP rebar:- Vinyl Ester Resin- E type fibreglass - or E-CR fibreglass (Corrosion Resistant)
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• Mechanical Properties1. Cross-Sectional Area2. Longitudinal Tensile Strength for Bars3. Longitudinal Tensile Modulus and Ultimate Elongation4. Bond Strength5. Transverse Shear Strength6. Strength of FRP Bent Bars7. Longitudinal Tensile Strength and Modulus of FRP Bent
Bars8. Longitudinal Tensile Properties at Cold Temperature9. Flexural Strength and Modulus
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• Physical Properties1. Fibre Content2. Longitudinal Coefficient of Thermal Expansion3. Transverse Coefficient of Thermal Expansion4. Density5. Void Content6. Water Absorption7. Cure Ratio8. Glass Transition Temperature
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• Durability Properties1. Alkali Resistance in High pH Solution (No Load)2. Alkali Resistance in High pH Solution (Load)3. Creep Rupture Strength4. Creep (10,000 Hr Test)
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• Rigorous testing has concluded:- 100+ Year Life Expectancy for GFRP Reinforced
Structures.
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• TUF-BAR™ tested in accordance with- ISIS Product Certification of FRP Materials guideline- CAN/CSA-S806-02 (R2007) “Design and Construction of
Building Components with Fibre-Reinforced Polymers”- CAN/CSA-S606 (2006) Fibre Reinforced Structures,
“Canadian Highway Bridge Design Code”, pp.693-728- ACI 440.3R-04 (2004) “Guide Test Methods for Fiber-
Reinforced Polymers (FRPs) for Reinforcing or Strengthening Concrete Structures”
- AASHTO GFRP-1 (2009) “AASHTO LFRD Bridge Design Guide Specifications for GFRP-Reinforced Concrete Bridge Decks and Traffic Railings”,
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• Features- Impervious to Chloride-Ion
and Chemical Attack- ¼ Weight of Steel- 2x Tensile Strength of Steel- Thermal Isolator- Non-Conductive- Non-Magnetic- Sizes #2-#8, 6mm-25mm- Standard/Custom Lengths,
Shapes, Bends
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Black Steel Stainless Steel TUF-BAR ™
Price 10x Black Steel Equivalent to Galvanized
Corrosion Susceptible Susceptible Non-Susceptible
Weight 1/4 of Steel
Tensile Strength 2x Steel/Stainless
Modulus 200 GPa 200 GPa 40-60 GPa
Bond Strength 8-11 MPa 8-11 MPa 10-16 MPa
Thermal Conductivity Yes Yes No
Electrical Conductivity
Yes Yes No
Magnetic Yes No No
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• Canada Green Building Council Member• Green Alberta Evaluation No. 09-004-V01• TUF-BAR™ is 100% recyclable• TUF-BAR™ contributes:
- 6 LEED® Credits in Canada- 7 LEED® Credits in USA
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• Glass Creep- GFRP not recommended:
- Pre-Tensioning- Post-Tensioning- Dead Loads
• Modulus- Cantilevering Loads
• Elongation- GFRP Elongates Linearly 2%
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• High Embedment Strength- Rough Surface- Sand Coating
• Fatigue- 20x Longer Under Cyclic
Loads
• Minimal Concrete Cover
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Loading FixtureA. El-Ragaby , E. F. El-Salakawy and B. Benmokrane
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• Low Risk Profile• Lightweight • Cuts with Chop Saw or Grinding Disc (No Shears)• Vinyl Coated Tie Wire or Zip Ties• No Patching or Corrosion Treatment
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• Studied in 12 Countries and 70 Universities• Extensive Canadian Studies involving 22
Researchers and 14 Universities
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• Researchers conclude 100+ Year Life Expectancy for GFRP Reinforced Structures:
1.No Degradation in GFRP Reinforcement2.Excellent Bonding3.No Debonding4.No Microcracking5.No Voids6.No Resin Microcracking7.No Glass Fibre Degradation8.No Significant Delamination/Debonding9.No Glass Transition10.No Sign of Chemical Degradation of the Resin11.No Chemical Degradation (Hydrolysis)
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• Composites Innovation Centre University of Manitoba
• GFRP 70% cost savings over 100 years
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• Research Teams Recommend:That GFRP be allowed as the Primary Reinforcement
• CAN/CSA-S6-06 (2006) “Canadian Highway Bridge Code”, pg.693-728
• CAN/CSA-S806-02 (R2007) “Design and Constructions of Building Components with Fibre-Reinforced Polymers”
• “If you look at the full life cycle cost, GFRP is far more cost-effective than metallic reinforcement”
Dr. Brahim BenmokraneNSERC Industry Research Chair
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• BP Composites Ltd.• (T): 780-448-9338• (F): 780-448-9360• 1-888-99-REBAR(73227)• [email protected]