干湿循环作用下氯离子在混凝土中的侵蚀过程分析

姬永生; 袁迎曙

doi:10.13204/j.gyjz200612005

干湿循环作用下氯离子在混凝土中的侵蚀过程分析

doi: 10.13204/j.gyjz200612005

1.
中国矿业大学建工学院徐州 221008

基金项目:

国家自然科学基金资助项目资助(编号:50078054、50478100)

详细信息

作者简介:
姬永生,男,1978年7月出生,讲师,博士研究生,E-mail:jysbh@126.com

中图分类号: TU528.0
计量
- 文章访问数: 96
- HTML全文浏览量: 10
- PDF下载量: 208
- 被引次数: 0
出版历程
- 收稿日期: 2006-05-15
- 刊出日期: 2006-12-20

TRANSPORT PROCESS OF CHLORIDE IN CONCRETE UNDER WET AND DRY CYCLES

1.
School of Architecture &Civil Engineering,China University of Mining and Technology Xuzhou 221008

摘要

摘要: 干湿循环和氯盐浸泡对比试验表明,在干湿循环作用下,氯离子在混凝土中的传输速度远大于饱水混凝土内外氯离子浓差引起的离子扩散速度,氯离子在上部非饱水混凝土中和在饱水混凝土中的传输机理不同。对上部非饱水混凝土中氯离子的渗透行为进行了机理分析,并建立了干湿循环作用下氯离子传输速度模型,可为准确地预测实际工况混凝土结构的使用寿命提供参考。
- 干湿循环 /
- 氯盐浸泡 /
- 传输速度 /
- 非饱水混凝土
Abstract: The research shows that the rate of chloride transport in concrete under wet and dry cycles is rapider than that in saturated concrete.This means the mechanism of chloride transport process is different in different environments.The mechanism of chloride transport process under wet and dry cycles is studied and a chloride transport model is developed which provides a reference for predicting accurately the service life of an actual concrete structure.
- wet and dry cycles /
- immersed in NaCl solution /
- transport rate /
- unsaturated concrete

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参考文献(10)

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