Fiber Reinforced Polymer

by Sunshine
(Malaysia)

Original Text: Fiber Reinforced Polymer

In the field of civil construction industry is rapidly growing, security and building bridges is a matter that should be taken seriously. Thus, the concrete structures deteriorate due to environmental attack in need of repair and preventive maintenance and sometimes need reinforcement due to poor initial design or to extend their service life.

In the construction industry, composite material; fiber normally is been used on repairing work such as bridge, beam, slab and etc. However this composite is expensive, fiber actually is more costly compare to reinforcement bar. Normally, the fiber is famous for repairing work on the construction industry because it so expensive to order to replace the failure structure element. So, to minimize the cost, the retrofitting method is been used to solve the structure problem. CFRP plate bonding technology advantages compare to steel joint such as have a low stress concentration, no bearing stress, lighter weight, high stiffness and high durability to most environment condition.

The normal method for strengthening system of reinforced concrete members is using plate-bonding system using steel. However due to possible corrosion problems, aging and deterioration of materials, changing or increasing traffic demands and handling aspect during installation, other alternatives materials are being investigated. With the advancement in the materials technology, a relatively high durability and high strength composite material known as Fiber Reinforced Polymer (FRP) is accommodate to replace steel plate.

The use of FRP materials such as carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (GFRP) are now receiving widespread attention for applications in plate bonding technology to upgrade. FRP plate bonding technology advantages compare to steel joint such as low stress concentration, no bearing stress, lighter weight, high stiffness and strength-to-weight ratios, stiffer joints beside higher durability to most environment conditions such as under polluted industrial area and under extreme temper.

This paper presented the experimental study of bonding strength of embedded CFRP plate on HSC under tension-compression loads (pull out test) results will be discussion onto local load distribution, load transfer length, bond stress distribution, and modes of failure.

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Revised Text:

The field of civil construction is rapidly growing and the safety and building of bridges is a matter that should be taken seriously. Concrete structures deteriorate due to environmental attack and need repair and preventive maintenance, and sometimes need reinforcement due to poor initial design or to extend their service life.

In the construction industry, composite material (fiber normally) is being used in repair work such as; bridges, beams, slabs, etc. However this composite is expensive, fiber is actually more costly than reinforcement bars. Normally, fiber is notorious for repair work in the construction industry because it so expensive to order and to replace failed structural elements. So, to minimize the cost, the retrofitting method has been used to solve structure problems.

CFRP plate bonding technology has advantages when compared to steel joints such as; having a low stress concentration, no bearing stress, lighter weight, high stiffness and high durability to most environment conditions.

The normal method for strengthening reinforced concrete members is using the plate-bonding system and steel. However, due to possible corrosion problems, aging and deterioration of materials, changing or increasing traffic demands, and handling aspects during installation, other alternative materials are being investigated. With advancements in materials technology, a relatively high durability and high strength composite material, known as Fiber Reinforced Polymer (FRP), is being used to replace steel plate.

The use of FRP materials, such as carbon fiber reinforced polymer (CFRP) and glass fiber reinforced polymer (GFRP), is now receiving widespread attention for applications in plate bonding technology. FRP plate bonding technology compares advantageously to steel joint in low stress concentration, no bearing stress, lighter weight, high stiffness and strength-to-weight ratios, stiffer joints, in addition to a higher durability to most environment conditions such as in polluted industrial areas and under extreme temperatures.

This paper presents an experimental study of bonding strength of embedded CFRP plate on HSC under tension-compression loads (pull out test.) Results are discussed on local load distribution, load transfer length, bond stress distribution, and modes of failure.

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