Fibre Reinforced Polymer Reinforcement Bar
MATERIAL SCIENCE FIBRE REINFORCED POLYMER REINFORCEMENT BAR
ABSTRACT: In this paper we are going see about the new technology of reinforcement that is FRP (Fiber reinforced polymers) rebars and its all characteristics. Such as its high strength, lightweight characteristic, creep characteristic, resistant to environmental factor like corrosion effect, fire performance, features and benefits, application, its materials and manufacturing, codes and specification, status and its barriers.
CONCRETE REINFORCEMENT - FRP REBAR
Introduction
Reinforced concrete is a common building material for the construction of facilities and structures. While concrete has a high compressive strength, it has a very limited tensile strength. To overcome these tensile limitations, reinforcing bars are used in the tension side of concrete structures. Steel rebars have been and are an effective and cost-efficient concrete reinforcement, but are susceptible to oxidation when exposed to chlorides. Examples of such exposure include marine areas, regions where road salts are used for deicing, and locations where salt contaminated aggregates are used in the concrete mixture. When properly protected from ion attack, steel reinforcement can last for decades without exhibiting any visible signs of deterioration. However, it is not always possible to provide this kind of corrosion protection. Insufficient concrete cover, poor design or workmanship, poor concrete mix, and presence of large amounts of aggressive agents all can lead to corrosion of the steel rebar and cracking of the concrete. Fiber reinforced polymer (FRP) composite rebar have the potential to address this corrosion deficiency. FRP rebar can be used as non-prestressed reinforcement in concrete for members subjected to flexure, shear, and compression loadings. FRP Composite rebar are totally resistant to chloride ion attack, offer a tensile strength of 1½ - 2 times that of steel, weigh only 25%
ABSTRACT: In this paper we are going see about the new technology of reinforcement that is FRP (Fiber reinforced polymers) rebars and its all characteristics. Such as its high strength, lightweight characteristic, creep characteristic, resistant to environmental factor like corrosion effect, fire performance, features and benefits, application, its materials and manufacturing, codes and specification, status and its barriers.
CONCRETE REINFORCEMENT - FRP REBAR
Introduction
Reinforced concrete is a common building material for the construction of facilities and structures. While concrete has a high compressive strength, it has a very limited tensile strength. To overcome these tensile limitations, reinforcing bars are used in the tension side of concrete structures. Steel rebars have been and are an effective and cost-efficient concrete reinforcement, but are susceptible to oxidation when exposed to chlorides. Examples of such exposure include marine areas, regions where road salts are used for deicing, and locations where salt contaminated aggregates are used in the concrete mixture. When properly protected from ion attack, steel reinforcement can last for decades without exhibiting any visible signs of deterioration. However, it is not always possible to provide this kind of corrosion protection. Insufficient concrete cover, poor design or workmanship, poor concrete mix, and presence of large amounts of aggressive agents all can lead to corrosion of the steel rebar and cracking of the concrete. Fiber reinforced polymer (FRP) composite rebar have the potential to address this corrosion deficiency. FRP rebar can be used as non-prestressed reinforcement in concrete for members subjected to flexure, shear, and compression loadings. FRP Composite rebar are totally resistant to chloride ion attack, offer a tensile strength of 1½ - 2 times that of steel, weigh only 25%