混凝土拌合物中氯离子含量快速测试方法的对比研究

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发布时间：2020-01-06 00:00:00

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混凝土拌合物中氯离子含量快速测试方法的对比研究

Comparison Study on Rapid Detection Method for Chloride Ion Content in Concrete Mixture

２０15年第8期

氯离子含量；快速测试；氯离子选择电极法；氯离子速测条法；新拌混凝土

Chloride ion content; Rapid detection; Chloride ion selective electrode method; Chloride ion test strip method; Fresh concrete

２０15年第8期

1000-4637（2015）08-07-05

林志翔，桂志伟，孙蓓

中国建筑材料科学研究总院，绿色建筑材料国家重点实验室，北京100024

林志翔，桂志伟，孙蓓

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摘要：为寻找一种能快速测试混凝土拌合物中水溶性氯离子含量的方法，采用硝酸银滴定法、氯离子选择电极法和氯离子速测条法，分别对使用硅酸盐水泥及掺矿粉和粉煤灰配制的C30和C50混凝土拌合物中水溶性氯离子含量进行了测试和综合评估。结果表明，三种测试方法在测试精度上没有太大区别，但用氯离子速测条法测试速度快、操作简便、不需要复杂的仪器和大的初期投资，更适合在施工现场使用。 Abstract: In order to finding out a method which can quick test the water-soluble chloride ion in fresh concrete, three kinds of methods were used, such as the silver nitrate titration, chloride ion selective electrode method and chloride ion test strip method. C30 and C50 concrete mixed with Portland cement and fly ash or blast-furnace slag, were tested and integrated assessment. The results showed that these test methods had little difference in the accuracy. However, the chlorine ion test strip method was fast, simple, and didn’t require complex equipment and big initial investment, which was more suitable for the construction site.

英文名 : Comparison Study on Rapid Detection Method for Chloride Ion Content in Concrete Mixture

刊期 : ２０15年第8期

关键词 : 氯离子含量；快速测试；氯离子选择电极法；氯离子速测条法；新拌混凝土

Key words : Chloride ion content; Rapid detection; Chloride ion selective electrode method; Chloride ion test strip method; Fresh concrete

刊期 : ２０15年第8期

DOI :

文章编号 : 1000-4637（2015）08-07-05

基金项目 :

作者 : 林志翔，桂志伟，孙蓓

单位 : 中国建筑材料科学研究总院，绿色建筑材料国家重点实验室，北京100024

林志翔，桂志伟，孙蓓

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引用本文

Abstract: In order to finding out a method which can quick test the water-soluble chloride ion in fresh concrete, three kinds of methods were used, such as the silver nitrate titration, chloride ion selective electrode method and chloride ion test strip method. C30 and C50 concrete mixed with Portland cement and fly ash or blast-furnace slag, were tested and integrated assessment. The results showed that these test methods had little difference in the accuracy. However, the chlorine ion test strip method was fast, simple, and didn’t require complex equipment and big initial investment, which was more suitable for the construction site.

关键词:

氯离子含量；快速测试；氯离子选择电极法；氯离子速测条法；新拌混凝土

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混凝土拌合物中氯离子含量快速测试方法的对比研究

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