【摘要】 纤维增强塑料(FRP)筋作为一种钢筋替代材料在土木工程中应用日渐广泛。本文对FRP筋在多种环境条件下的耐久性问题的国内外研究进展进行了综述,重点讨论了温度、湿度、酸、碱、盐溶液等环境作用下FRP筋的耐久性及模拟加速环境作用对FRP筋与混凝土界面粘结性能的影响。结果表明,上述环境作用对FRP筋及其与混凝土界面粘结性能的耐久性都有不同程度的影响。另外,本文还给出Fares E.Tannous等人建立的FRP筋在盐、碱溶液侵蚀作用下的耐久性预测模型,并对今后FRP筋的耐久性研究趋势作了展望。更多还原

【Abstract】 Fiber reinforced polymer(FRP) rods have a broad application in civil engineering field used as a material substiting steel bars.Based on the domestic and abroad research,the durability of the fiber reinforced polymer(FRP)rods under multifarious environmental conditions is summarized in this paper,and the effect of environments such as temperature,humidity,corrosion from acid,alkaline and salt solutions on durability performance of FRP materials as well as the degradation of the bond characteristics between FRP rods and the interface of concrete caused by the acceleration environment test are mainly discussed.The results indicate that the environmental conditions mentioned above affect FRP rods and bond characteristics between FRP rods and the interface of concrete.In addition,a related model predicting the influence on durability of FRP rods in alkaline solutions is given and future study trend on durability of FRP rods is presented.更多还原