Tensile Behavior of Basalt-Fiber-Grid-Reinforced Mortar before and after Exposure to Elevated Temperature

This paper presents an experimental study on the tensile behavior of basalt-fiber-grid-reinforced mortar (BGRM) before and after exposure to elevated temperature 300 °C considering effect fiber grid type, short polyvinyl alcohol (PVA), high-temperature time. The results show that plates reinforced with woven textile T25 fiber-reinforced polymer (FRP) G50 exhibited more pronounced strain-hardening behavior. highest peak stress was obtained for T25-reinforced plate, which 85% 32% higher than T5- G50-reinforced plates, respectively. Meanwhile, bridging PVA fibers in can improve properties. As time increased, cracking BGRM decreased significantly. Especially T5-reinforced plate 2 h, by 60.5% 38%, positive properties became obsolete owing melting at high temperature. Furthermore, exponential strength degradation model related proposed.