DEgration of Conctete

1. DEGRADATION
OF REINFORCED
CONCRETE:
CAUSES & SOLUTIONS

2. INTRODCTION
The corrosion of steel in concrete structures such as
bridges, roads, buildings, dams, etc. is a world wide
phenomena that leads to structural weakness and
degradation.
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3. CORROSION
For steel reinforcement to corrode, the passive oxide layer on the steel must fail. If
the concrete cover that protects the reinforcing steel is damaged and the bond
between the concrete and steel reinforcing bar is ineffective, the steel’ s passive
layer will break down and active corrosion of the steel will occur.
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4. “
Concrete is more widely used than any
other manmade material and has been
a construction staple for centuries.
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5. REASONS WHY CONCRETE
DETERIORATES?
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6. 1. CORROSION OF
EMBEDDED METALS
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7. 2. DEICING SALTS
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8. SALT-INDUCED CORROSION
Chloride-induced corrosion is the
single largest problem for aging
concrete highway bridges, particularly
in marine environments or areas
where road salts are used.
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9. 3. FREEZE-THAW
DETERIORATION
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10. 4. CHEMICAL ATTACKS
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11. 5. ALKALI AGGREGATE
REACTIVITY
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12. 6. ABRASION/ERROSION
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13. 7. FIRE/HEAT
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14. 8. OVERLOAD AND
IMPACT
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15. 9. LOSS OF SUPPORT
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16. CORROSION-FREE & SUSTAINABLE
CONCRETE REINFORCEMENT SOLUTIONS?
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17. GFRP
COMPOSITES
GFRP composite, for instance
fiberglass rebar, materials are rust-free
thus protect concrete structures against
severe environment.
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18. ABOUT TUF-BAR
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19. TUF-BAR
At TUF-BAR, we design, manufacture and
deliver sustainable construction solutions for a
wide range of civil applications from internal
reinforcement to rehabilitation.
Our Products
Our corrosion-free solutions include
fiberglass rebar, rock bolts. Form
ties, and concrete anchors.
Who we are?
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20. PROPERTIES OF OUR GFRP FIBERGLASS
REBAR
◆Non susceptibility to corrosion
◆2x Tensile strength
◆¼ the weight of steel
◆Electrically & thermally neutral
◆Incredible bond strength
◆Ease of installation
◆ Zero maintenance
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21. CONTACT US
Phone: 1.888.99.REBAR
Email: info@tuf-bar.com
Website: www.tuf-bar.com