TECHNOLOGICAL-STRUCTURAL PECULIARITIES OF REINFORCED CONCRETE STRUCTURES STRENGTHENED WITH CARBON FIBER-REINFORCED POLYMER
研究了用碳纤维增强聚合物加固钢筋混凝土时，胶水被混凝土表层吸收会改变其物理力学性能，并分析了裂缝区刚度和强度降低的影响。
Carbon fiber‐reinforced polymer is used for strengthening of reinforced concrete structures with externally bonded reinforcement. This fiber has more strength and better deformation properties than steel. During glueing, the glue is absorbed in the surface layer of concrete. It changes physical and mechanical properties of concrete. This effect depends on the structure of concrete. Experimental investigations sustained absorbing of glue and strengthening of concrete. The rigidity between concrete and carbon fiber polymer layer is smaller in cracked zones. Shear deformations decrease rigidity and strength in a contact zone. The authors methods were investigated in fastening carbon fiber‐reinforced polymer to concrete. The efficiency of these methods was definited. Theoretical results are compared with experimental results.