ABSTRACT
The focus of the structural tests was to investigate the flexural behaviour of CFRP RC Beams. Hence, a simultaneous investigation of cracking, strain and curvature behaviour was necessary (Aiello, 2000; Tann, 2001; Sooriyaarachchi, 2005). Moreover the CFRP was used for the main flexural reinforcement. A steel RC beam was used for comparison purposes. A total of seven concrete beams with 100 mm width, 200 mm height and 2600 mm length as shown in Figure 3, were tested under four-point loading until failure. Table 1 shows the mechanical properties of the CFRP strip used. Figure 4 shows the typical dimensions and reinforcement of the test models. The concrete mix used for casting
1 INTRODUCTION
Current studies indicate that the use of advanced composites for structural applications is increased dramatically during the last decade and their use is expected to continue rising (Nanni, 2000). In the last decade, the use of FRP composites to reinforce concrete members has emerged as one of the most promising technologies in materials/structural engineering. There are a wide range of applications of FRP reinforcement that cover new construction as well as rehabilitation of existing structures. FRP systems for strengthening concrete structures are a practical alternative to traditional strengthening techniques such as steel plate bonding, section enlargement, and external post-tensioning.
