Corrosion Detection of Embedded or Encased High Strength Steel Rods and Cables Using Time Domain Reflectometry

使用时域反射计对嵌入式或封装的高强度钢棒和电缆进行腐蚀检测

• 批准号: 9700164
• 负责人: Robert Hunsperger
• 金额: $ 22.33万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-01 至 2000-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9700164&HistoricalAwards=false
• 关键词: Corrosion; Detection; Embedded; Encased; Strength

9700164 Hunsperger the objective of this research is to develop a nondestructive evaluation (NDE) method for detecting corrosion of embedded or encased high strength steel rods and cables. The proposed method involves using Time Domain Reflectometry (TDR) to locate and evaluate corrosion sites. TDR is a well established technique in the field of electrical engineering and has been used for many years to detect breaks in transmission lines. Preliminary numerical simulations indicate that TDR shows promise for being able to detect both surface and pit corrosion of steel strands embedded in concrete. A reliable, accurate, and economical method for detecting the location and magnitude of the corrosion will lead to increased levels of safety for our civil infrastructure, and may enable significant savings to the public by reducing maintenance costs through early corrosion detection.

9700164饥饿这项研究的目标是开发一种无损评估(NDE)方法，用于检测嵌入或封装的高强度钢棒和电缆的腐蚀。提出的方法包括使用时间域反射仪(TDR)来定位和评估腐蚀位置。TDR是电气工程领域中一项成熟的技术，多年来一直用于检测输电线路中的故障。初步的数值模拟表明，TDR有望同时检测埋入混凝土中的钢绞线的表面和凹坑腐蚀。一种可靠、准确和经济的方法来检测腐蚀的位置和程度，将提高我们的民用基础设施的安全水平，并通过及早检测腐蚀来降低维护成本，从而为公众节省大量资金。