Investigating the Corrosion Inhibition Mechanisms of Alkanolammonium Salts: A Case Study with Ethylethanolammonium 4-Nitrobenzoate on Carbon Steel in Saline Solution

Crisan, Manuela; Muntean, Cornelia; Chumakov, Yurii; Plesu, Nicoleta

doi:10.3390/app14051832

Cited by 1 publication

(1 citation statement)

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“…Therefore, construction regulations establish requirements which ensure the durability of reinforced concrete, with the aim that structures meet their expected lifespan [15]. To mitigate the effects of aggressive environments, different categories of environmental exposure have been established, considering factors such as the levels of humidity, wetting and drying cycles, and the presence of chlorides and other contaminating agents [16].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Effectiveness of the Application of Corrosion Inhibitors to Steel Re-Bars Embedded in Concrete

Matilla,

Barrio,

Escamilla

et al. 2024

Applied Sciences

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Reinforced concrete is the most widely used material in the construction of building structures, being noted for its versatility and low cost. However, the durability of reinforced concrete structures can be compromised by the corrosion of steel re-bars, especially in the presence of chlorides. To address this challenge and promote sustainability, the use of corrosion inhibitors has been researched as a way to extend the lifespan of structures. This study assessed the effectiveness of using a commercial corrosion inhibitor on steel re-bars embedded in types of concrete with different chloride percentages, using electrochemical methods to measure the corrosion rate and potential. The results indicate that, in the absence of corrosion inhibitors, corrosion rates become unacceptable with chloride percentages equal to or higher than 0.8% by weight of cement. The application of inhibitors significantly reduced the corrosion rate, particularly at chloride percentages of 0.8% and 1.2%, maintaining the re-bars in a passive state or at moderate levels of corrosion. However, for chloride percentages higher than 1.6%, high levels of corrosion were observed, even in the presence of inhibitors. The findings suggest that the use of inhibitors can be an effective strategy in preventing corrosion in reinforced concrete structures, contributing to their structural integrity and long-term sustainability.

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Section: Introductionmentioning

confidence: 99%