Fundamental understanding of the corrosion behavior of galvanized steel reinforcement in mechanically stabilized earth walls

对机械稳定土墙中镀锌钢筋腐蚀行为的基本了解

• 批准号: 414319-2011
• 负责人: Alfantazi, Akram
• 金额: $ 2.13万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=491717
• 关键词: Fundamental; understanding; corrosion; behavior; galvanized

The use of Mechanically Stabilized Earth (MSE) walls and facings have gained widespread acceptance in North America for the past 30 years, as evidenced by the numerous completed structures. Exposure of MSE walls and facings to aggressive conditions could lead to early failure, and areas exposed to de-icing salts tend to present conditions similar to aggressive environments. This project seeks to attain a better understanding of the corrosion behavior of galvanized steel when exposed to de-icing salts and other environmental pollutants. The objectives to this project are to ascertain the environmental causes of corrosion in galvanized steel under aggressive conditions, and to identify the optimum galvanized coating characteristics and possible surface treatments to improve the corrosion resistance of MSE walls and facings in order to create a set of construction guidelines for the construction of MSE walls under aggressive environments. The research will be highly beneficial to understand the corrosion behavior of MSE walls and facings which would allow better quality control in future road infrastructure construction projects and to optimize the operational parameters. The results of this work are of importance to the private sector, and also to the transportation and public sectors in Canada. The anticipated benefits of the work to Canada and the sponsor are significant and will have an impact on the ability of other Canadian companies to compete efficiently in the global market.

在过去的30年中，机械稳定的地球（MSE）壁和面在北美的广泛接受度已得到广泛接受，这一点已得到众多完整的结构证明。 MSE墙壁和面孔暴露在侵略性条件下可能会导致早期失败，而暴露于冰盐的区域往往会出现类似于侵略性环境的条件。该项目试图更好地了解镀盐盐和其他环境污染物时镀锌钢的腐蚀行为。该项目的目标是确定在侵略性条件下镀锌钢腐蚀的环境原因，并确定最佳的镀锌涂层特征和可能的表面处理，以提高MSE壁和面的耐腐蚀性，以创建一套在侵略性环境下建造MSE壁的建筑指南。这项研究将非常有益于了解MSE墙壁和面孔的腐蚀行为，这将在未来的道路基础设施建设项目中获得更好的质量控制并优化操作参数。这项工作的结果对私营部门以及加拿大的运输和公共部门都很重要。这项工作对加拿大和赞助商的预期收益非常重要，并将影响加拿大其他公司在全球市场上有效竞争的能力。