氯离子含量测试与钢筋腐蚀临界点测定分析

Testing Methods of Chloride Content and Analysis of Measurement Method of Corrosion Critical Point

氯离子的侵入是引起建筑结构中钢筋锈蚀的主要原因,当钢筋表面的氯离子浓度达到临界值时,钢筋开始脱钝锈蚀。建筑结构的检测鉴定、寿命预测以及修复都要参考氯离子的临界浓度这一重要指标。本文主要针对氯离子临界浓度研究中的两个重要问题--氯离子含量的表示方法和测试方法以及钢筋腐蚀临界点测定进行分析。

The penetration of chloride is the main causes of reinforcement corrosion in the building structure.When the chloride concentration on the surface of the reinforcement reaches the threshold value, the reinforcement begins to rust.The chloride threshold value is a key indicator of the inspection, life prediction and repair of building structures.In this paper,the two important problems in the study of the chloride threshold value——the representing and test method of the chloride concentration and analysis of measurement method of corrosion critical point are discussed.