钢筋锈蚀是影响混凝土结构安全和寿命的主要因素。水工建筑物中钢筋锈蚀的原因是混凝土保护层碳化、产生裂缝、侵入氯离子以及氧和水的作用。检测钢筋锈蚀的方法有三类,即常规方法、电化学方法和物理方法。对这些方法的可行性和存在问题作了详细讨论,并展望了在水利工程现场检测应用的前景。 Steel corrosion is the main factor affecting the safety and life of concrete structures. Corrosion of steel reinforcement in hydraulic structures is due to carbonization of concrete cover, cracks, intrusion of chloride ions and oxygen and water. There are three ways to detect corrosion of steel bars, that is, conventional methods, electrochemical methods and physical methods. The feasibility and existing problems of these methods are discussed in detail, and the prospect of application in the field of hydraulic engineering is forecasted.