Glass Fibre Reinforced Polymer (GFRP)

The GFRP plates were fabricated using the pultrusion method, with internal glass rovings in the longitudinal direction and continuous strand glass mats or stitched reinforcements in the transverse direction. The GFRP plates were fabricated using a proprietary system with a combination of fibreglass reinforcements and thermosetting polyester resin. From the manufacturer’s specifications the GFRP plates have a minimum tensile strength of 207 MPa, with a modulus of elasticity of 17.2 GPa [14]. Experimental testing using three tension coupon specimens in accordance with ASTM D3039-00 [15] provided values for the ultimate tensile strength as 230 ± 44 MPa, with the value for the modulus of elasticity equal to 18 689 ± 2927 MPa.