Abstarct: Nowadays, building structures in corrosive environments require some considrations. Being light weight, high tensile strength and corrosion resistance are the features that make FRP bars an alternate to steel in the reinforcement of concrete. On the other hand, linear elastic behavior of FRP bars alongside with the brittle behavior of concrete, make a brittle member without considerable ductility. The urgency of ductility and necessity of warning before collapse, caused researches to be conducted in improving the ductility of concrete members reinforced with FRP bars. This study, experimentally investigates the improvement of FRP reinforced concrete beams in two manners. First, for the purpose of changes in the stress-strain curves of concrete in compression, mix designs were modified with polymers. 18 cylindrical specimens consist of 5 different polymers were tested. A polymer was found with 10 percent improvement in ductility. Decreasing the ultimate strength in this type of polymer caused much lower energy dissipation compared to regular concrete. Therefore, using polymers for ductility improvementof concrete was ignored. In the second approach, confining the compression region of concrete beams with FRP sheets was considered. 8 reinforced concrete beams with total length of 2m were cast in 7 types of confinements and tested. The 4-poin bending test results shows that 3 types of concrete confinements (R.D.5, S.D.10 and S.C.Pipe) can improve beam ductility up to 30-60 percent.