[1]董必钦,孔钟,吴育盛,等.水泥基材料离子迁移过程的可视化与定量分析[J].深圳大学学报理工版,2021,38(4):380-385.[doi:10.3724/SP.J.1249.2021.04380]
 DONG Biqin,KONG Zhong,WU Yusheng,et al.Visualization and quantitative research of ion migration process in cement-based materials[J].Journal of Shenzhen University Science and Engineering,2021,38(4):380-385.[doi:10.3724/SP.J.1249.2021.04380]
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水泥基材料离子迁移过程的可视化与定量分析
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第38卷
期数:
2021年第4期
页码:
380-385
栏目:
土木建筑工程
出版日期:
2021-07-10

文章信息/Info

Title:
Visualization and quantitative research of ion migration process in cement-based materials
文章编号:
202104007
作者:
董必钦孔钟吴育盛洪舒贤
深圳大学土木与交通工程学院,广东省滨海土木工程耐久性重点实验室,广东深圳518060
Author(s):
DONG Biqin KONG Zhong WU Yusheng and HONG Shuxian
College of Civil and Transportation Engineering, Guangdong Province Key Laboratory of Durability for Marine Civil Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, P.R.China
关键词:
建筑材料水泥离子迁移X射线断层扫描技术无损检测可视定量
Keywords:
building materials cement ion migration X-ray computed tomography nondestructive testing visualization quantify
分类号:
TU528
DOI:
10.3724/SP.J.1249.2021.04380
文献标志码:
A
摘要:
氯离子的侵蚀是滨海混凝土钢筋锈蚀的关键因素之一.为探索离子在水泥基材料中的原位迁移过程,利用X射线计算机断层扫描(X-ray computed tomography, XCT)技术,以碘化物为示踪剂,对掺有粉煤灰的水泥基材料的离子迁移过程进行无损分析.结果表明,XCT技术可以对离子在水泥基材料中的迁移过程进行无损、可视化跟踪,精确定量离子在样品内的浓度分布.将所得结果与滴定法测得离子浓度进行对比,证明了XCT测试结果的准确性.
Abstract:
The erosion of chloride ions is one of the key factors of concrete reinforcement corrosion in coastal area. In order to study the in-situ migration of ions in cement-based materials nondestructively and quantitatively, X-ray computed tomography (XCT) was used to nondestructive study the migration process using iodide as tracer in cement-based materials mixed with fly ash. The results show that ion migration in cement-based materials can nondestructive and visual traces by XCT technology, and accurately quantify the concentration distribution of ions in the samples. And the accuracy of XCT test results is demonstrated by comparing with the ion concentration measured by titration method.

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更新日期/Last Update: 2021-07-30