vendredi 20 mars 2015

The Significance Of Glass Fiber Reinforced Polymer

By Lelia Hall


There are many types of fibers that can be used to reinforce polymer matrix composites. Actually, corrosion of internal reinforcing steel is one of the main causes of failure of concrete structures. It cannot be avoided that concrete will surely crack, creating a direct avenue for chlorides to start oxidizing the steel bar. Fiberglass is a type of reinforced plastic where the reinforcement fiber is specifically glass fibers.

This material is lightweight and used for different product applications. It is a versatile material due to its weather resistant finish, lightweight, variety of surface textures and inherent strength. A glass fiber reinforced polymer is a successful and proven alternative for construction standards, authoritative consensus guides, product procurement specifications, test methods ad qualification of methods available for the designers.

Using these materials will give an assurance to the owners and designers commercially and safely implementing a certain augmentation in several types of structures. Fiberglass is a type of glass used in various types of fibers. It is not as stiff or strong as the carbon steels but with characteristics making it more advisable to be applied in different applications. Actually, it is non conductive and often invisible to different types of transmissions. It also makes it a good choice when working with electrical or broadcast applications.

Most of the mechanical properties and behaviors of fiber reinforced polymers such as the glass fiber and carbon versus the metal reinforcing must be learned and understood by anyone before taking the designs of structures using the said reinforcements. Most of these systems are acceptable alternatives to every steel reinforcement for concrete structures.

The advantages of these systems over steel reinforcement is its flexibility to corrosion. Masonry structures may also benefit from these systems. They are useful to strengthen the structures that is specified by structural engineers in both private and public industries. Using glass fibers are the primary reinforcing fiber in all FRPs.

It is better to consider the best factor when you choose a certain type if reinforced composite for every structural application and try to understand the limit of each fiber to resist the long tern loading. A continuous loading in the fiber polymers has also the abilities to resist many loads, but usually prone to failure, rupture in the structures and long term deflection.

Most of its advantages include corrosion resistant, high strength and light weight, dimensionally stable, low thermal conductivity and non conductive as well as impact resistant, electromagnetically transparent and low life cycle costs. Its main disadvantage is its high initial cost as compared to steel reinforcement.

FRPs are widely used for structural augmentations in different applications. Also, they can be used in tunnels, roads, bridges, marine environments and slopes. An internal reinforcement has a specific advantage when it comes to tunnel walls where most of the steel augmentation could be damage.

Once you know and understand all of those aspects in every structural application, it would be easier for a professional to consider a lot of important factors especially when it comes to the exact application to the surfaces as well as the materials used.




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