一、钢筋混凝土桥梁耐久性的含义及发生机理1.混凝土耐久性的含义。所谓混凝土结构的耐久性,是指混凝土结构在自然环境、使用环境及材料内部因素的作用下,在设计要求的目标使用期内,不需要花费大量资金加固处理而保持其安全、使用功能和外观要求的能力。简而言之,钢筋混凝 First, the meaning of reinforced concrete bridges durability and mechanism 1. Concrete durability meaning. The so-called durability of concrete structure refers to the concrete structure in the natural environment, the use of the environment and the internal factors of the material, the design requirements of the target period, do not need to spend a lot of money to strengthen the processing and maintain its safety, use features and appearance Required ability. In short, reinforced concrete