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Abstract Fibre Reinforced Polymers (FRP) are formed by integrating fibres in a polymeric resin matrix, which joins the fibres together. Glass fibres have a limited use in structural and non-structural applications, due to their low mechanical properties. On the other hand, Carbon Fibres Reinforced Polymers (CFRP) are commonly used due to their high strength-to-weight ratio. For example, the carbon fibres (CFRP) have a strength up to 10 times the strength of mild steel and about 4 times that of glass fibres (GFRP), as shown in (Figure 1.1). FRP composites provide also a high corrosion resistance. Therefore, FRP composites are very attractive materials for structural engineering applications. The ease of handling make the FRP materials more attractive in retrofitting applications of existing structures in addition to the construction of new structures. |