Aminoalcohol based mixed corrosion inhibitors

Wombacher, F; Maeder, U.; Marazzani, B.

doi:10.1016/s0958-9465(03)00040-4

Cited by 89 publications

(36 citation statements)

References 4 publications

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“…Studies on the performance of concrete and/or reinforced concrete, containing organic nano-sized particles are, however, very restricted. Except reports on the influence of organic inhibitors [18][19][20] (although the aims and mechanisms related to inhibitors significantly differ from the hereby discussed phenomena and type of nanoaggregates), to our best knowledge, there is no record on the investigation of the corrosion performance of reinforced concrete in the presence of tailored polymeric nanoaggregates (e.g., micelles and/or vesicles).…”

Section: Introductionmentioning

confidence: 90%

Corrosion performance of reinforced mortar in the presence of polymeric nano-aggregates: electrochemical behavior, surface analysis, and properties of the steel/cement paste interface

Koleva

Breugel

2012

J Mater Sci

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This study reports on the effect of admixed polyethylene oxide-b-polystyrene (PEO 113 -b-PS 70 ) micelles on corrosion behavior of reinforced mortar. The electrochemical measurement shows that the corrosion performance of the reinforcing steel was not significantly improved. However, surface analysis and microstructural investigation at the steel/cement paste interface reveal that the admixed micelles lead to a steel surface layer with enhanced barrier properties in terms of morphology and composition. Therefore, the presence of micelles further minimized and halted the corrosion process, despite the very aggressive, chloride-containing environment of 5% NaCl. The reasons and mechanisms behind the hereby observed corrosion behavior of reinforced mortar in the presence of micelles are related to the influence of these nano-aggregates on microstructural properties. These further results in altered water/ion transport and chloride-binding mechanisms in the bulk mortar matrix and thus steel product layer modifications towards enhanced corrosion resistance.

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Section: Introductionmentioning

confidence: 90%

Corrosion performance of reinforced mortar in the presence of polymeric nano-aggregates: electrochemical behavior, surface analysis, and properties of the steel/cement paste interface

Koleva

Breugel

2012

J Mater Sci

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“…Specifically, N-N-diethylaminoethanol is absorbed onto the steel surface forming organic films which protect both the anodic and cathodic sections of the rebar [17]. Besides, the transportation of surface applying amino alcohols inhibitor into concrete depends on the concrete quality, the porosity and the humidity [18,19].…”

Section: Methodsmentioning

confidence: 99%

Efficiency of Amino Alcohols as Corrosion Inhibitors in Reinforced Concrete

Vyrides¹,

Rakanta²,

Zafeiropoulou³

et al. 2013

OJCE

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The objective of this paper is to investigate the behaviour of amino alcohol corrosion inhibitors when they are used in reinforced cement mortars either as admixtures in the cement paste or as coating applications on the surface of the rebars. The reinforced cement mortars were exposed to both partial and full immersion in 3.5 wt% NaCl solution. Electrochemical measurements such as half-cell potential and linear polarization technique, as well as weight loss of the embedded rebars were performed in order to obtain information on the corrosion behaviour of the reinforcing steel in cement mortar. Results demonstrate that the amino alcohol corrosion inhibitors offer protection against rebar corrosion in cement mortars.

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“…Apart from admixed inhibitors, surface applied inhibitors also gained popularity during the past 15 years. Wombacher et al 2004;Malik et al 2004;Holloway et al 2004;Soylev et al 2007 andJamil et al 2004 investigated the effectiveness of surface applied inhibitors in chloride induced corrosion. Most of the previous studies investigating the performance of surface applied organic inhibitors focused on chloride induced corrosion.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Impedance Spectroscopy to Study the Carbonation Behavior of Concrete Treated with Corrosion Inhibitors

Kaur

Goyal

Bhattacharjee

et al. 2017

ACT

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In this paper, electrochemical impedance spectroscopy was used as non destructive technique (NDT) for studying the carbonation behavior of the concrete sample treated with migratory type of organic corrosion inhibitors. Concrete carbonation was achieved in carbonation chamber by maintaining 5% CO 2 by volume, 60-70% relative humidity and 30 ± 2°C temperature for 90 days. The experimental results show that with progressive carbonation, porosity of the concrete reduces and results in denser microstructure. The concrete surface treated with corrosion inhibitor C.I. 1 (amine -ether based) and C.I. 2 (2-aminobenzoic acid) shows the behaviour different form the control sample at the end of exposure conditions. Impedance results indicate that carbonation depth can be predicted by analyzing the high frequency arc of Nyquist plot. Also, both of the tested inhibitors were able to form a passive layer around the rebar surface and their efficiencies improved with time.

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Aminoalcohol based mixed corrosion inhibitors

Cited by 89 publications

References 4 publications

Corrosion performance of reinforced mortar in the presence of polymeric nano-aggregates: electrochemical behavior, surface analysis, and properties of the steel/cement paste interface

Corrosion performance of reinforced mortar in the presence of polymeric nano-aggregates: electrochemical behavior, surface analysis, and properties of the steel/cement paste interface

Efficiency of Amino Alcohols as Corrosion Inhibitors in Reinforced Concrete

Electrochemical Impedance Spectroscopy to Study the Carbonation Behavior of Concrete Treated with Corrosion Inhibitors

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