Electrochemical Mechanisms of Reinforced Concrete Degradation

混凝土中的金属腐蚀是一个数十亿美元的问题， 美国的 公路等钢筋混凝土结构 人行道、桥梁、建筑物和其他类型的结构， 由于钢筋的腐蚀而恶化 在混凝土中。 钢筋在混凝土中的腐蚀机理是 尽管广泛使用钢筋混凝土， 一种建筑材料。 影响腐蚀行为的因素很多 钢，如氯化物，电流，水泥浆 化学和所有材料的相互关系。

The corrosion of metals in concrete is a multibillion dollar problem in the United States. Reinforced concrete structures such as highway pavements, bridges, buildings, and other types of structures are deteriorating as a result of the corrosion of the steel reinforcement in the concrete. The mechanism of corrosion of steel in concrete is not well known in spite of the extensive use of reinforced concrete as a construction material. Many factors affect the action of corrosion of steel, such as chlorides, electrical currents, cement-paste chemistry, and interrelationships of all materials.