检测机构对砂中氯离子含量检测能力验证的要点分析

Analysis of Key Points of Verification of Chloride Ion Content in Sand by Testing Institutions

近年来,砂中氯离子含量检测成为建设工程质量检测的必检项目,因为砂中氯离子含量超标将严重影响钢筋混凝土工程的结构安全和耐久性。各主管部门除了加大对检测机构监督检查的力度和频次外,同时也频繁组织砂中氯离子含量检测能力验证活动,因为砂中氯离子含量检测过程影响因素较多,导致部分检测机构能力验证结果不满意或者存疑。本文对砂中氯离子含量检测的操作要点进行了全面的剖析,整理提出了砂中氯离子含量检测精细化操作方法和关键步骤。希望对加强检测机构对砂中氯离子含量检测能力提供帮助。

In recent years,the detection of chloride ion content in sand has become a must-check item in the quality inspection of construction projects,because the exceeding chloride ion content in sand will seriously affect the structural safety and durability of reinforced concrete projects.In addition to the intensity and frequency of supervision and inspection of testing institutions,the competent departments also frequently organize the verification activities of the chloride ion content detection capability in sand,because there are many influencing factors in the detection process of chloride ion content in sand,the verification results of the capability of some testing institutions are unsatisfactory or suspicious.In this paper,the key points of operation of chloride ion content detection in sand are analyzed comprehensively,and the refined operation methods and key steps of chloride ion content detection in sand are put forward.It is hoped to provide help to strengthen the ability of testing institutions to detect chloride ion content in sand.