| 高性能水泥基材料结合外渗氯离子能力的测试方法对比 |
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| 引用本文： | 管学茂,孙国文,王玲,姚燕. 高性能水泥基材料结合外渗氯离子能力的测试方法对比[J]. 混凝土, 2005, 0(11): 36-39,45 |
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| 作者姓名： | 管学茂 孙国文 王玲 姚燕 |
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| 作者单位： | 中国建筑材料科学研究院,北京,100024;河南理工大学材料科学与工程学院,河南,焦作,454000;河南理工大学材料科学与工程学院,河南,焦作,454000;中国建筑材料科学研究院,北京,100024 |
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| 基金项目： | “973”计划（2001CB6107）资助项目 |
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| 摘 要： | 高性能混凝土掺各种微细掺合料后,由于这些掺合料的自身特性,酸溶时发现部分试样有难溶絮状物质生成,这种物质对氯离子有一定的吸附性,所以增加了测试结合外渗氯离子的难度.本文进行了大量的试验证实：佛尔哈德法可以直接进行滴定分析,能将吸附的氯离子释放出来,这种方法用铁铵矾作指示剂,不仅适合于酸性介质,滴定终点直观,而且测试的精度对实验室研究,高于莫尔法和离子选择电极法.
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| 关 键 词： | 测试方法 氯离子 直接电位法 莫尔法 佛尔哈德法 电位滴定法 |
| 文章编号： | 1002-3550（2005）11-0036-04 |
| 收稿时间： | 2005-07-12 |
| 修稿时间： | 2005-07-12 |
Contrasting method of testing binding capability of chloride ions exosmosed in high performance cement - based materials |
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| GUAN Xue-mao,SUN Guo-wen,WANG Ling,YAO Yan. Contrasting method of testing binding capability of chloride ions exosmosed in high performance cement - based materials[J]. Concrete, 2005, 0(11): 36-39,45 |
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| Authors: | GUAN Xue-mao SUN Guo-wen WANG Ling YAO Yan |
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| Affiliation: | 1. China Building Material Academy, Beijing 100024, China; 2. Materials Science and Engineering College, Henan Polytechnic University, Jiaozuo 454000, Henan, China |
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| Abstract: | High Performance Concrete adds all kinds of super- fine mineral admixtures which are specially themselves. Using acid to dissolve testing samples finds there is downy substance insolubilized which can absorb chloride ions in acid, so it is difficult to test chloride ions content objectively. Many experiments prove that Volhard method can analyze samples directly and make chloride ions bound release. Titration end point of Volhard Method using ferriammonium sulfate as a indicator that suit acid medium is very perspicuity and testing precision is better than direct potentiometric method and Mohr in laboratory. |
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| Keywords: | testing methods chloride ions direct potentiometric method Mohr Volhard method potentiometric titration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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