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混凝土保护层抗氯离子渗透性的现场测试方法研究
引用本文:阎培渝,杨进波,吴志刚.混凝土保护层抗氯离子渗透性的现场测试方法研究[J].混凝土,2008(8).
作者姓名:阎培渝  杨进波  吴志刚
作者单位:1. 清华大学,土木工程系,北京,100084;结构工程与振动教育部重点实验室,北京,100084
2. 中冶集团建筑研究总院,高性能混凝土研究院,北京,100088
摘    要:混凝土保护层的抗氯离子渗透性是决定钢筋混凝土结构耐久性的关键因素之一.试验室内测定的混凝土材料的抗氯离子渗透性往往不能真实地反映混凝土保护层的抗氯离子渗透性.Permit Ion Migration Test是目前唯一一种可以现场测定混凝土保护层抗氯离子渗透性的试验方法.介绍Permit Ion Migration Test的基本原理和试验方法,推导理论计算公式.通过初步试验介绍了基本试验参数的测定方法并对试验数据的规范化处理提出了建议.

关 键 词:混凝上保护层  抗氯离子渗透性  稳态电迁移试验  Permit试验  氯离子扩散系数

Experimental research of an in-situ chloride migration test for covercrete
YAN Pei-yu,YANG Jin-bo,WU Zhi-gang.Experimental research of an in-situ chloride migration test for covercrete[J].Concrete,2008(8).
Authors:YAN Pei-yu  YANG Jin-bo  WU Zhi-gang
Affiliation:YAN Pei-yu 1a,b,YANG Jin-bo 1a,WU Zhi-gang 2(1a.Department of Civil Engineering,b.Key Laboratory of Structural Engineering , Vibration of China Education Ministry,Tsinghua University,Beijing 100084,China,2.Research Institute of High Performance Concrete,Central Research Institute of Building , Construction,MCC Group,Beijing 100088,China)
Abstract:The resistance of covercrete to the penetration of chloride ions plays a crucial rule in the durability of a reinforced concrete structure.In fact,the resistance of concrete to the penetration of chloride ions tested in lab does not equal the resistance of covercrete to the penetration of chloride ions.At the present time,Permit Ion Migration Test is the only method can test the resistance of covercrete to the penetration of chloride ions in situ.The basic theory and test method of Permit Ion Migration Test...
Keywords:covercrete  resistance to the penetration of chloride ions  steady-state migration test  Permit Ion Migration Test  chloride diffusion coefficient  
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