To evaluate the structural performance of geopolymer concrete beam with FRP rods as main reinforcement, flexural load tests were conducted. The findings obtained from the tests are summarized as follows: 1) The failure mode varied depending on the main reinforcement and concrete type. 2) The ultimate flexural strength can be calculated more accurately using the ACI equation for specimens with Ordinary Portland Cement concrete and Tran et al.’s equation for specimens with Geopolymer concrete. 3) FRP rods have different bond characteristics depending on their surface shape, so for FRP rod specimen, it is necessary to calculate the flexural strength based on the bond strength.
