1.1 ,This test method describes the apparatus and procedure for evaluating the performance of wet lay-up or pultruded Fiber-Reinforced Polymer (FRP) composite systems adhesively bonded to a flat concrete substrate. The test determines the maximum force that an FRP system can bear before detaching from a concrete beam tested in flexure. Failure will occur along the weakest plane within the system composed of the FRP composite, adhesive, and concrete substrate.