Suitability of using simulated porous-like solutions to evaluate the steel corrosion in carbonated concrete

IF 1.6 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-03-28 DOI:10.1002/maco.202314215
Juan Carricondo, Gustavo S. Duffó, Silvia B. Farina
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Abstract

The use of simulated solutions is a common practice in corrosion studies to assess easily and quickly the corrosion behaviour of materials in real situations. In this context, it is frequent to substitute tests performed in concrete or mortar with tests performed in porous-like solutions. Particularly, to simulate carbonated concrete, different carbonated porous-like solutions (CPS) are found in the literature. However, it is not known whether the use of these solutions accurately predicts the behaviour of steel bars embedded in carbonated concrete. In the present work, a comparison between the corrosion behaviour of carbon steel in carbonated mortar and in different CPS was performed. It was found that none of the CPS studied in the present work adequately simulate the corrosion behaviour of the steel in carbonated mortar, but the CPS containing high concentrations of carbonates/bicarbonates is the only one that provides corrosion rates close to those obtained in carbonated concrete.

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使用模拟多孔溶液评估碳酸盐混凝土中钢筋腐蚀情况的适用性
在腐蚀研究中,使用模拟溶液是一种常见的做法,可以方便快捷地评估材料在实际情况下的腐蚀行为。在这种情况下,经常用在类多孔溶液中进行的试验来代替在混凝土或砂浆中进行的试验。特别是,为了模拟碳化混凝土,文献中出现了不同的碳化类多孔溶液(CPS)。然而,使用这些溶液是否能准确预测钢筋在碳化混凝土中的嵌入行为尚不得而知。在本研究中,对碳钢在碳化砂浆和不同 CPS 中的腐蚀行为进行了比较。结果发现,本研究中研究的 CPS 都不能充分模拟钢筋在碳化砂浆中的腐蚀行为,但只有含有高浓度碳酸盐/碳酸氢盐的 CPS 能提供与碳化混凝土中接近的腐蚀速率。
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来源期刊
Materials and Corrosion-werkstoffe Und Korrosion
Materials and Corrosion-werkstoffe Und Korrosion 工程技术-材料科学:综合
CiteScore
3.70
自引率
11.10%
发文量
199
审稿时长
1.4 months
期刊介绍: Materials and Corrosion is the leading European journal in its field, providing rapid and comprehensive coverage of the subject and specifically highlighting the increasing importance of corrosion research and prevention. Several sections exclusive to Materials and Corrosion bring you closer to the current events in the field of corrosion research and add to the impact this journal can make on your work.
期刊最新文献
Calendar of Events Cover Picture: Materials and Corrosion. 11/2024 Masthead: Materials and Corrosion. 11/2024 Contents: Materials and Corrosion. 11/2024 Calendar of Events
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