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混凝土结构在设计使用年限内,正常运行的过程中,由于非荷载原因造成表面裂缝、剥蚀,影响其正常使用的现象,称为混凝土结构的耐久性问题。由于水工混凝土结构的耐久性受到众多因素的影响,同时结构的耐久性与工程安全、结构使用年限以及效益发挥密切相关。因此,对水工混凝土结构耐久性的研究包括对已有结构的耐久性评估并确定加固补强措施,以及新建、拟建结构的耐久性设计等内容。笔者结合施工实践,介绍了水工混凝土结构耐久性的因素与措施。
Concrete structures in the design life, the normal operation of the process, due to non-load causes surface cracks, erosion, affecting its normal use of the phenomenon, known as the durability of concrete structures. As the durability of hydraulic concrete structures is affected by many factors, at the same time, the durability of structures is closely related to the safety of engineering, the service life of structures and benefits. Therefore, the study on the durability of hydraulic concrete structures includes the evaluation of the durability of existing structures and the determination of reinforcement measures, as well as the durability design of new and proposed structures. Combined with construction practice, the author introduces the factors and measures of durability of hydraulic concrete structure.