暴露26年后的混凝土的碳化和氯离子分布

范宏; 赵铁军; 田砾; 徐红波

doi:10.13204/j.gyjz200608016

暴露26年后的混凝土的碳化和氯离子分布

doi: 10.13204/j.gyjz200608016

1.
1. 西安建筑科技大学西安 710055;
2.
2. 青岛理工大学青岛 266033

基金项目:

国家自然科学基金资助项目(编号:50378045)

详细信息

作者简介:
范宏男 1967年10月出生博士研究生讲师 E-mail:yxqpfwl@126.com

中图分类号: TU528.0
计量
- 文章访问数: 58
- HTML全文浏览量: 6
- PDF下载量: 93
- 被引次数: 0
出版历程
- 收稿日期: 2006-03-15
- 刊出日期: 2006-08-20

CARBONATION AND CHLORIDE DISTRIBUTION OF CONCRETE AFTER 26 YEAR-EXPOSURE

1.
1. Xi'an University of Architecture and Technology Xi'an 710055;
2.
2. Qingdao Technological University Qingdao 266033

摘要

摘要: 对北海船厂码头的不同构件钻取了一批直径100mm的混凝土芯样。在实验室测量了芯样碳化区域的CaCO3的含量,芯样中的氯离子分布,分析了材料因素和环境因素对碳化和氯离子分布的影响。试验结果表明,在极度潮湿环境下混凝土碳化进展缓慢,且碳化区域以未完全碳化区为主导,混凝土碳化的深度最终趋于一个极限值。氯离子分布受局部环境条件的影响显著,并可导致芯样表面对流区深度发生较大变化。
- 氯离子 /
- 碳化 /
- 表观扩散系数 /
- 芯样
Abstract: The specimens of concrete core with a diameter of 100mm were drilled from different elements of the dock in Qingdao Beihai Dockyard.The content of calcium carbonate in carbonation zone and chloride distribution from the specimens ware measured.The influence of materials and environments on carbonation and chloride distribution were analyzed.The test results show that the carbonation rate is slow in extremely humid environment,and the incomplete carbonation zone is dominant in carbonation zone,the depth of carbonation tends to a limit.The distribution of chloride ions is influenced evidently by local environment conditions,which can make the depth of convection zone changing widely.
- chloride ion /
- carbonation /
- apparent diffusion coefficient /
- core specimen

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参考文献(7)

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