The purpose of this study is to assess the strengthening effect of fiber-reinforced polymer(FRP) grids on flexural members. For this purpose, experimental study was conducted using seven flexural specimens with the main variables of an FRP grid and inorganic mortar used as adhesive. All the specimens failed due to the tensile rupture of FRP grids without debonding between FRP grids and inorganic mortar. It was found that the strengthening effect was dependent on the material properties of FRP grids.

As the pilot study on textile reinforced mortar(TRM) construction method, the present research has been conducted to investigate the tensile performance of fiber-reinforced polymer(FRP) grids inserted in inorganic mortar. For this purpose, experiment was carried out using twenty specimens with the main parameters of inorganic mortar and FRP grids. As a result, splitting failure did not occur between inorganic martar and FRP grids. As FRP grids were completely fractured, the specimens failed by showing the similar tensile behavior to the mechanical properties of FRP grids.