Fundamental and Applied Research on Corrosion of Reinforced Concrete

钢筋混凝土腐蚀的基础与应用研究

• 批准号: 9812757
• 负责人: Paulo Jose Monteiro
• 金额: $ 14.77万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-05-15 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9812757&HistoricalAwards=false
• 关键词: Fundamental; Applied; Research; Corrosion; Reinforced

9812757Steel corrosion and the resulting deterioration of reinforced concrete structures is one of the primary causes of increasing damage to infrastructure. A focus on concrete strength over durability, the growing use of deicing salts and chloride-containing admixtures, and construction in increasingly aggressive environments are some to the factors that have lead to the surge of concrete structures experiencing reinforcement corrosion in recent decades. [The concrete durability crisis, particularly involving the corrosion of embedded steel, is extensive, and published literature is replete with case histories indicating that there is a urgent need to develop a better understanding of the corrosion mechanism. The objective of this proposal is to establish a holistic study of corrosion of reinforced concrete. The research will analyze the chemistry of the corrosion mechanism, develop new equipment to determine the degree of distress caused by the corrosion and test the new methodology in field conditions. We will promote an aggressive technology transfer to owners, conctactors and government agencies].

9812757钢材的腐蚀以及由此导致的钢筋混凝土结构的劣化是对基础设施造成日益严重破坏的主要原因之一。对混凝土强度的关注超过了耐久性，除冰盐和含氯化物外加剂的使用越来越多，以及在日益恶劣的环境中施工，是导致近几十年来混凝土结构出现钢筋腐蚀激增的一些因素。[混凝土耐久性危机，特别是涉及预埋钢的腐蚀，是广泛的，已发表的文献中充满了案例历史，表明迫切需要更好地了解腐蚀机制。本提案的目的是建立对钢筋混凝土腐蚀的整体研究。该研究将分析腐蚀机理的化学性质，开发新的设备来确定腐蚀造成的破坏程度，并在现场条件下测试新方法。我们将大力推动向业主、承建商和政府机构转让技术。