In these days, carbon fiber-reinforced polymer (CFRP) has been widely used for retrofitting and/or strengthening structural elements in structure. However, there are not enough test data to predict the long-term performance of the retrofitted structur...
In these days, carbon fiber-reinforced polymer (CFRP) has been widely used for retrofitting and/or strengthening structural elements in structure. However, there are not enough test data to predict the long-term performance of the retrofitted structures exposed to weathering. The purpose of this study is to evaluate the effect of freeze-thawing on the shear behavior of reinforced concrete(RC) beams strengthened in shear with carbon fiber sheet and plate. Six small-scale RC beams (100 mm × 100 mm × 400 mm) were strengthened with CFRP in shear, subjected to up to 240 cycles freeze-thawing from -18~4℃, and tested to failure in four-point bending. The test data also indicated that no significant damage to carbon fiber sheet and plate strengthened concrete beams had occurred because of 240 cycles freeze-thawing.