测定混凝土中氯化物含量非常重要,因为它会导致混凝土中的钢筋锈蚀。用Volhad测定法其结果非常精确,但它仅限于实验室使用。英国利物浦大学和利物浦工业大学提出了经济、迅速且适用于施工现场的氯化物含量测试法,分别称为Hach和Quantab试验法。它们的测量精度可与Volhard法 It is very important to determine the chloride content in concrete because it will cause corrosion of the steel in the concrete. The Volhad assay is very accurate, but it is limited to laboratory use. The University of Liverpool and the University of Liverpool have proposed an economical, rapid and applicable chloride content test method for construction sites, called the Hach and Quantab test methods, respectively. Their measurement accuracy can be compared with the Volhard method