Pultruded fiber-reinforced polymer (FRP) composite is expected to be applied for infrastructures widely due to its advantages of lightweight, anti-corrosion, and industrial manufacturing. Its long-term performance has attracted increasing attention from academia and industry. This paper presents A comprehensive review on experimental studies investigating the mechanical performance of pultruded FRP composites subjected to long-term environmental effects, including water/moisture, alkaline solutions, acidic solutions, low/high temperatures, ultraviolet radiation, freeze-thaw cycles, wet-dry cycles, and in situ environments. Over 1900 experimentally determined mechanical properties of FRP materials were collected, including tensile, compressive, flexural and shear strength and moduli. The reported test data were highly dispersed, and no uniform conclusions could be drawn from these data. Exposure to water and water-based solutions (alkaline and acidic solutions) had detrimental impacts on the mechanical properties of pultruded FRP materials, whereas other environmental effects induced various levels of degradation. The degradation mechanisms for each environmental effect were discussed, and the existing design approaches were presented. Based on the findings from the review, recommendations were proposed for future works. The database presented herein, which is the largest in the available literature, enables a comprehensive understanding of the degradation behavior of pultruded FRP composites. Moreover, this work can serve as a foundation for deriving predictive models for pultruded FRP materials exposed to long-term environmental effects.

拉挤纤维增强聚合物（FRP）复合材料由于其重量轻，防腐和工业制造的优势而有望广泛应用于基础设施。它的长期性能引起了学术界和工业界的越来越多的关注。本文介绍了对拉挤FRP复合材料的机械性能进行长期环境影响的实验研究的全面综述，包括水/湿气，碱性溶液，酸性溶液，低温/高温，紫外线辐射，冻融循环，湿润-干燥循环和原位环境。收集了1900多个实验确定的FRP材料的机械性能，包括拉伸，压缩，弯曲和剪切强度和模量。报告的测试数据高度分散，并且无法从这些数据得出统一的结论。暴露于水和水基溶液（碱性和酸性溶液）对拉挤FRP材料的机械性能有不利影响，而其他环境影响则导致各种程度的降解。讨论了每种环境影响的退化机理，并提出了现有的设计方法。根据审查的结果，提出了有关未来工作的建议。本文介绍的数据库是现有文献中最大的数据库，可全面了解拉挤FRP复合材料的降解行为。此外，这项工作可以为推导受到长期环境影响的拉挤玻璃钢材料的预测模型奠定基础。