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首页> 外文期刊>International journal of steel structures >A Time-Dependent Corrosion Characteristic of a Steel Member in Contact with Concrete
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A Time-Dependent Corrosion Characteristic of a Steel Member in Contact with Concrete

机译：与混凝土接触的钢构件的时变腐蚀特征

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摘要

Steel members in composite structures of steel and concrete, such as composite girder bridges, guardrails, and steel piers, are often partially embedded in concrete members. The corroded steel members in contact with concrete were recently fractured because of corrosion damage. This study investigates the time-dependent corrosion behavior of a steel plate in contact with concrete by performing an accelerated cyclic corrosion test, which was specified in the ASTM D 6899-03, on four types of composite model specimens of steel plates with different painted areas and concrete blocks for 100, 200, and 400 cycles. The surface geometry of the corroded steel plates was measured at a 1 x 1 mm interval using an optical 3D measurement system after the corrosion productions were removed. The corrosion characteristic, that is, the changes in the corrosion growth, corrosion depth, and the corrosion depth distribution with testing time, was statistically analyzed. The application procedure of the present test results to atmospheric environments was also proposed based on the amount of flying salt.
机译：钢和混凝土的复合结构中的钢构件（例如，复合梁桥，护栏和钢墩）通常部分地嵌入混凝土构件中。与混凝土接触的锈蚀钢构件最近由于腐蚀损坏而断裂。这项研究通过对ASTM D 6899-03进行的加速循环腐蚀试验，对四种具有不同涂装面积的钢板复合模型样本进行研究，研究了钢板与混凝土的时效腐蚀行为和混凝土砌块分别进行100、200和400次循环。去除腐蚀产物后，使用光学3D测量系统以1 x 1 mm的间隔测量腐蚀钢板的表面几何形状。统计分析腐蚀特性，即腐蚀增长，腐蚀深度和腐蚀深度分布随测试时间的变化。还根据飞盐的含量提出了本测试结果在大气环境中的应用程序。

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