U.S.-Egypt Cooperative Research: Evaluation of Green Corrosion Inhibitors for Steel Reinforcement in Concrete Structures

美国-埃及合作研究：混凝土结构钢筋绿色缓蚀剂的评估

• 批准号: 0612194
• 负责人: Fouad Fouad
• 金额: $ 0.92万
• 依托单位: University of Alabama at Birmingham
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-02-01 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0612194&HistoricalAwards=false
• 关键词: U.S.; Egypt; Cooperative; Research; Evaluation

0612194FouadDescription: This award is to support a cooperative research by Dr. Fouad H. Fouad, Department of Civil and Environmental Engineering, University of Alabama, Birmingham and Dr. Rafik Awad, Alexandria University Alexandria, Egypt. They plan to investigate corrosion of steel reinforced concrete structures. Chloride induced rebarcorrosion damage results mainly from exposure to marine environments and/or the use of de-icing salts in cold climates. The magnitude of the problem has increased drastically resulting in very high expenditures (billions of dollars) for repair and replacement of deficient structures. Chemical corrosion inhibitors have been used successfully in the past. The objective of the proposed work is to develop a new type of "green" corrosion inhibitor (produced from natural products of plant origin) that will protect steel against corrosion while being environmentally safe. An experimental program will be performed using full size reinforced concrete elements to assess the performance of different types of "green" corrosion inhibitors.Intellectual Merit: The intellectual merit of the proposed activity will include the study and evaluation of different types of "green" corrosion inhibitors with regards to protecting reinforcing steel against corrosion for structures subjected to aggressive corrosive environments. A fundamental understanding of the behavior of the naturally produced "green" corrosion inhibitors will be developed as part of this study. Moreover, the information gathered will be used to enhance the knowledge about reinforcing steel corrosion by virtue of making engineering recommendations regarding the use of corrosion inhibitors in aggressive environments. These recommendations will be presented and proposed for consideration by national concrete specification organizations. Data from the study will also be used for the future development other types of corrosion inhibitors as well as comparing their performance to that of existing chemical inhibitors.Broader Impacts: The project should lead to the advancement of our understanding of the steel corrosion mechanism and the impact of using new types of "green" corrosion inhibitors on protecting against corrosion. The added knowledge should lead to improved performance of reinforced concrete structures subjected to corrosive environments as well significant cost savings. The proposed research will benefit the society by extending the life of reinforced concrete structures and eliminating costly repairs. The educational impact of the project will include the involvement of graduate and undergraduate students in all the stages of the project. Students at the University of Alabama at Birmingham as well as the Egyptian institution will be involved in the research work. The students will be exposed to advances in concrete technology and will be involved in the theoretical as well as experimental programs of study. The work products of this project will be published in international peer-reviewed journals and conferences to enhance the scientific understanding. Since the damage of concrete structures due to aggressive environments significantly impacts the public, corporations, as well as the economy, the expected outcome of this project should lead to damage mitigation in the future. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.

0612194FouadDescription：该奖项旨在支持阿拉巴马大学民用与环境工程系Fouad H. Fouad博士的合作研究，伯明翰，伯明翰大学和亚历山大大学Alexandria，埃及的Rafik Awad博士。 他们计划研究钢钢筋混凝土结构的腐蚀。 氯化物诱导的反腐蚀损害主要是由于暴露于海洋环境和/或在寒冷的气候下使用去冰盐。该问题的大小已大大增加，导致了很高的支出（数十亿美元），以维修和替换不足的结构。 过去已经成功使用了化学腐蚀抑制剂。拟议工作的目的是开发一种新型的“绿色”腐蚀抑制剂（由植物起源的天然产物生产），该腐蚀器将在环境安全的同时保护钢免受腐蚀。将使用全尺寸钢筋混凝土元素进行实验程序，以评估不同类型的“绿色”腐蚀抑制剂的性能。智能优点：拟议活动的智力优点将包括研究和评估不同类型的“绿色”腐蚀抑制剂有关保护强化钢免受具有侵略性腐蚀性环境的结构的腐蚀。本研究的一部分将对自然产生的“绿色”腐蚀抑制剂的行为进行基本理解。此外，收集的信息将用于增强有关在侵略性环境中使用腐蚀抑制剂的工程建议来增强钢腐蚀的知识。这些建议将由国家具体规范组织提出并提出审议。该研究的数据还将用于未来开发的其他类型的腐蚀抑制剂，并将其性能与现有化学抑制剂的性能进行比较。BRODER的影响：该项目应导致我们对钢腐蚀机制的理解以及对钢铁腐蚀机制的理解发展使用新型的“绿色”腐蚀抑制剂对防御腐蚀的影响。附加的知识应导致经受腐蚀性环境的钢筋混凝土结构的性能，并节省大量成本。拟议的研究将通过延长钢筋混凝土结构的寿命并消除昂贵的维修来使社会受益。该项目的教育影响将包括在项目的所有阶段都参与研究生和本科生的参与。阿拉巴马大学伯明翰以及埃及机构的学生将参与研究工作。学生将受到混凝土技术的进步，并将参与理论和实验课程。该项目的工作产品将在国际同行评审的期刊和会议上发表，以增强科学理解。由于由于积极环境而造成的混凝土结构的损害会对公众，公司以及经济产生重大影响，因此该项目的预期结果将在未来导致减轻损害。 该项目得到了美国埃及联合基金计划的支持，该计划为两国的科学家和工程师提供了这些合作活动的赠款。