| 掺合料混凝土导电量与气体渗透系数的相关性研究 |
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| 引用本文： | 王振,王中平,郁群,翁友法.掺合料混凝土导电量与气体渗透系数的相关性研究[J].中国港湾建设,2011(3). |
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| 作者姓名： | 王振 王中平 郁群 翁友法 |
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| 作者单位： | 1. 上海港湾工程质量检测有限公司,上海,200032
2. 同济大学先进土木工程材料教育部重点试验室,上海,200092 |
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| 摘 要： | 由于混凝土渗透性能的不同检测方法各有优缺点,探讨几种渗透性能指标间的相关性已成为一种趋势。文章采用ASTM C1202直流电量法和Cembureau法探讨掺合料混凝土导电量与气体渗透系数两种耐久性指标间的相关性,并就电极溶液中氯离子的迁移量和导电量的关系进行讨论。结果表明:掺合料混凝土导电量与气体渗透系数之间存在线性相关性,其换算关系还需要更系统的实验来确立;在对以导电量直接评价混凝土抗氯离子渗透性能有所质疑时,可以考虑将实际的氯离子迁移量(阴极溶液氯离子减少量、阳极溶液氯离子增加量、氯离子渗透深度)作为评价混凝土抗氯离子渗透性能的一个辅助指标;干燥引发的微裂纹会导致混凝土导电量明显提高。
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| 关 键 词： | 混凝土导电量 气体渗透系数 微裂纹 氯离子迁移量 相关性 |
Correlation between Charge Passed and Gas Permeability Coefficient of Mineral Admixture Modified Concrete |
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| WANG Zhen,WANG Zhong-ping,YU Qun,WENG You-fa.Correlation between Charge Passed and Gas Permeability Coefficient of Mineral Admixture Modified Concrete[J].China Harbour Engineering,2011(3). |
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| Authors: | WANG Zhen WANG Zhong-ping YU Qun WENG You-fa |
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| Institution: | WANG Zhen 1,WANG Zhong-ping2,YU Qun1,WENG You-fa1(1.Shanghai Harbor Engineering Quality Control and Testing Co.,Ltd.,Shanghai 200032,China,2.Key Laboratory of Advanced Civil Engineering Materials of the Ministry of Education,Tongji University,Shanghai 200092,China) |
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| Abstract: | Since different detection methods of concrete permeability have both advantages and disadvantages,the study of the correlation between several permeability indexes has become a trend.This paper dicusses the correlation between the durability indexes of charge passed and air permeability coefficient of the mineral admixture modified concrete,and the relation between the amount of chloride-ion migration and charge passed by ASTM C1202 Method and Cembureau Method.The results indicate that: the linear correlati... |
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| Keywords: | charge passed of concrete coefficient of gas permeability micro-crack chloride-ion migration amount correlation |
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