[1]Civil Engineering Department,AlMustansiriyah Engineering College,ALMustansiriyah University,Baghdad 1001,Iraq;
[2]Department of Civil,Environmental and Natural Resources Engineering,Lulea Technology University,Lulea 971 87,Sweden;
[3]Department of Civil Engineering,AL-Farabi University College,Baghdad 1001,Iraq;
Torque; first and ultimate cracks; RPC; opening; T-section; repairing; carbon fiber reinforced polymer(CFRP);