Electrochemical Mechanisms of Reinforced Concrete Degradation

钢筋混凝土降解的电化学机制

• 批准号: 8513934
• 负责人: Robert Heidersbach
• 金额: $ 1.91万
• 依托单位: Oklahoma State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-09-15 至 1989-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8513934&HistoricalAwards=false
• 关键词: Electrochemical; Mechanisms; Reinforced; Concrete; Degradation

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.

在美国，混凝土中金属的腐蚀是一个数十亿美元的问题。由于混凝土中钢筋的腐蚀，钢筋混凝土结构，如高速公路路面、桥梁、建筑物和其他类型的结构正在退化。尽管钢筋混凝土被广泛用作建筑材料，但钢筋在混凝土中的腐蚀机理尚不清楚。许多因素都会影响钢的腐蚀行为，如氯化物、电流、水泥浆体化学以及所有材料之间的相互关系。