Sikora Oliwia, Ostrowski Krzysztof Adam
Cracow University of Technology, CUT Doctoral School, Faculty of Civil Engineering, 24 Warszawska Str., 31-155 Cracow, Poland.
Cracow University of Technology, Faculty of Civil Engineering, 24 Warszawska Str., 31-155 Cracow, Poland.
Materials (Basel). 2025 Jul 8;18(14):3222. doi: 10.3390/ma18143222.
The growing application of carbon fiber-reinforced polymers (CFRPs) in construction opens new possibilities for replacing traditional materials such as steel, particularly in strengthening and retrofitting concrete structures. CFRP materials offer notable advantages, including high tensile strength, low self-weight, corrosion resistance, and the ability to be tailored to complex geometries. This paper provides a comprehensive review of current technologies used to strengthen concrete columns, with a particular focus on the application of fiber-reinforced polymer (FRP) tubes in composite column systems. The manufacturing processes of FRP composites are discussed, emphasizing the influence of resin types and fabrication methods on the mechanical properties and durability of composite elements. This review also analyzes how factors such as fiber type, orientation, thickness, and application method affect the load-bearing capacity of both newly constructed and retrofitted damaged concrete elements. Furthermore, the paper identifies research gaps concerning the use of perforated CFRP tubes as internal reinforcement components. Considering the increasing interest in innovative column strengthening methods, this paper highlights future research directions, particularly the application of perforated CFRP tubes combined with external composite strengthening and self-compacting concrete (SCC).
碳纤维增强聚合物（CFRP）在建筑领域的应用日益广泛，为替代钢材等传统材料开辟了新的可能性，尤其是在混凝土结构的加固和修复方面。CFRP材料具有显著优势，包括高抗拉强度、低自重、耐腐蚀以及能够定制成复杂的几何形状。本文全面综述了用于加固混凝土柱的现有技术，特别关注纤维增强聚合物（FRP）管在复合柱体系中的应用。讨论了FRP复合材料的制造工艺，强调了树脂类型和制造方法对复合构件力学性能和耐久性的影响。本综述还分析了纤维类型、取向、厚度和应用方法等因素如何影响新建和修复受损混凝土构件的承载能力。此外，本文指出了关于使用穿孔CFRP管作为内部增强部件的研究空白。鉴于对创新柱加固方法的兴趣日益浓厚，本文突出了未来的研究方向，特别是穿孔CFRP管与外部复合加固和自密实混凝土（SCC）相结合的应用。
