[1]李 隽,高培伟,刘宏伟,等.混凝土在浸泡和干湿循环作用下的抗氯盐侵蚀性能[J].南京理工大学学报(自然科学版),2017,41(05):666.[doi:10.14177/j.cnki.32-1397n.2017.41.05.020]
 Li Jun,Gao Peiwei,Liu Hongwei,et al.Study on concrete resistance to chloride salt corrosion underfull soaking and wet-dry cycling condition[J].Journal of Nanjing University of Science and Technology,2017,41(05):666.[doi:10.14177/j.cnki.32-1397n.2017.41.05.020]
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混凝土在浸泡和干湿循环作用下的抗氯盐侵蚀性能()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
41卷
期数:
2017年05期
页码:
666
栏目:
出版日期:
2017-10-31

文章信息/Info

Title:
Study on concrete resistance to chloride salt corrosion underfull soaking and wet-dry cycling condition
文章编号:
1005-9830(2017)05-0666-05
作者:
李 隽12高培伟1刘宏伟12张丽芳1
1.南京航空航天大学 航空宇航学院,江苏 南京 210016; 2.盐城工学院 土木工程学院,江苏 盐城 224051
Author(s):
Li Jun 12Gao Peiwei 1Liu Hongwei 12Zhang Lifang1
1.College of Aerospace Engineering,Nanjing University of Aeronautic and Astronautics,Nanjing 210016,China; 2.Civil Engineering College,Yancheng Institute of Technology,Yancheng 224051,China
关键词:
混凝土 盐胀 氯盐侵蚀 力学性能 微观结构
Keywords:
concrete salt expansion chloride salt corrosion mechanical properties microstructure
分类号:
TU528
DOI:
10.14177/j.cnki.32-1397n.2017.41.05.020
摘要:
该文采用自然浸泡和干湿循环试验方法研究了不同浓度氯盐浸泡的混凝土在干湿循环后的盐胀破坏特征。研究结果表明,混凝土经氯盐溶液干湿循环作用后,随干湿循环龄期增加,其抗压强度略有下降,抗折强度下降明显。微观分析发现,经干湿循环作用后,氯离子含量高的溶液对混凝土侵蚀较为严重,全浸泡对混凝土的强度影响较小。
Abstract:
The salt expansion damage characteristics of concrete are studied using test methods of the full soaking and the wet-dry cycling.The research result shows that,after the wet-dry cycling of the chloride solution with different chloride concentrations,the compressive strength of concrete decreases slightly and the flexural strength decreases obviously with the wet-dry cycling age increasing.The microscopic analysis also shows that,the solution of the chloride snow-melting agent with the high chloride concentration has more serious effect on the concrete erosion under the wet-dry cycling condition,and the full soaking has little effect on the strength of concrete.

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备注/Memo

备注/Memo:
收稿日期:2016-05-30 修回日期:2017-03-27

基金项目:中国博士后科学基金(2014M551588); 江苏省博士后基金(1301057B); 江苏省“六大人才高峰”基金(2012-JZ-010); 交通部西部交通建设科技项目(2009CB01)
作者简介:李隽(1976-),女,副教授,博士生,主要研究方向:土木、道路工程材料,E-mail:anthurium@163.com; 通讯作者:高培伟(1963-),男,教授,博士生导师,主要研究方向:道路工程、土木工程材料,E-mail:gpw1963@nuaa.edu.cn。
引文格式:李隽,高培伟,刘宏伟,等.混凝土在浸泡和干湿循环作用下的抗氯盐侵蚀性能[J].南京理工大学学报,2017,41(5):666-670.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 1900-01-01