蒸馏分离-汞盐滴定法测定混凝土样品中氯含量方法的改进

Improved method of fractional distillation-mercuric nitrate complexometry for determining content of chloride ion in concrete

混凝土中的氯含量过高会严重锈蚀钢筋,因此混凝土中氯的检测显得尤为重要,由于混凝土样品中既含有水泥、砂石等无机材料,又可能含有各种有机材料外加剂,因此很难找到直接测试混凝土中氯的方法。本文对蒸馏法的装置进行了改进用来测定混凝土中的氯含量,通过实验证实了方法的可靠性。

If the content of chlorine in concrete is much higher,steel bars will be eroded,so it is important to the test the content of chlorine.Because the ingredients of concrete is complex,including cement,sand and admixture,therefore is very difficult to find a method to test the content of chlorine in concrete.In this paper,the authors of this article did much research on improvement distillation method to test the content of chlorine in concrete,and the mass experimental data proved that this method is feasible.