对2种测试混凝土抗渗能力用非稳态氯离子迁移系数法的分析  

Analysis of Two Kind of Non-steady-state Chloride Ion Migration Coefficient Methods Used for Testing Impermeability of Concrete

作　　者：贾海涛 李文秀 李昊 杨帆 王辉 JIA Haitao;LI Wenxiu;LI Hao;YANG Fan;WANG Hui

机构地区：[1]中铁检验认证中心有限公司,北京100081

出　　处：《铁道技术监督》2023年第7期36-40,共5页Railway Quality Control

基　　金：中国铁道科学研究集团有限公司标准计量研究所基金(BJ2022S11)。

摘　　要：氯离子渗透是钢筋混凝土结构劣化常见的原因之一,有必要研究快速有效的测试混凝土抵抗氯离子渗透能力的方法和评价体系。介绍非稳态氯离子迁移系数法NTB法和RCM法,分析二者之间的差异,通过对比溶液、参数、公式、试验结果,说明这2种测试方法的不同。虽然NTB法和RCM法的试验原理相同,但测试结果并不相同,建议相应的适用评判指标也应不同。Chloride ion penetration has become one of the common reasons for the deterioration of reinforced con⁃crete structures.It is necessary to study a fast and effective method and evaluation system for testing the resistance of concrete to chloride ion penetration.The paper introduces the difference between NTB method and RCM method,and explains the difference between the two test methods by comparing the liquor,parameters,formula and test results.Al⁃though the test principles of NTB method and RCM method are the same,the test results is very different.It is suggest⁃ed that the applicable corresponding evaluation indexes should also be different.

关 键 词：混凝土 抗渗能力 非稳态氯离子迁移系数 NTB法 RCM法 对比 

分 类 号：U214.18[交通运输工程—道路与铁道工程]