Chloride Ion Penetrability and Corrosion Behavior of Steel in Concrete with Sustainability Characteristics

Higuera, Ramón Corral; Arredondo-Rea, S.P.; Neri-Flores, M.A.; Gómez-Soberón, José Manuel; Almaral-Sánchez, Jorge Luis; Castorena-González, J.H.; Martínez‐Villafañe, A.; Almeraya-Calderón, Facundo

doi:10.1016/s1452-3981(23)15047-4

Cited by 29 publications

(4 citation statements)

References 32 publications

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“…where Y = admittance (the reciprocal of impedance), ω = angular frequency, j n = (−1) = imaginary number and n = dimensionless fraction exponent (−1 < n < +1), constant phase element is an ideal capacitor (when n = +1) and is an inductor (when n = −1) [73][74][75][76][77][78][79][80].…”

Section: Electrochemical Impedance Spectroscopy Analysismentioning

confidence: 99%

Corrosion Behavior of Passivated CUSTOM450 and AM350 Stainless Steels for Aeronautical Applications

Samaniego-Gámez

Almeraya-Calderón

Chacón-Nava

et al. 2022

Metals

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Custom 450 stainless steel and AM 350 stainless steel are both precipitation hardening stainless steels, which are widely used in a variety of aerospace applications. The former steel exhibits very good corrosion resistance with moderate strength, whereas the latter is used for applications requiring high strength along with corrosion resistance. In this study, the corrosion behavior of CUSTOM 450 and AM 350 stainless steels passivated in (a) citric acid and (b) nitric acid solutions for 50 and 75 min at 49 and 70 °C, and subsequently exposed in 5 wt. % NaCl and 1 wt. % H2SO4 solutions are investigated. Two electrochemical techniques were used: electrochemical noise (EN) and electrochemical impedance spectroscopy (EIS) according to ASTM G199-09 and ASTM G106-13, respectively. The results indicated that passivation in nitric acid made the surface prone to localized corrosion. Statistical and PSD values showed a tendency toward pitting corrosion. On the whole, passivated CUSTOM 450 stainless steel showed the best corrosion behavior in both, NaCl and H2SO4 test solutions.

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Section: Electrochemical Impedance Spectroscopy Analysismentioning

confidence: 99%

Corrosion Behavior of Passivated CUSTOM450 and AM350 Stainless Steels for Aeronautical Applications

Samaniego-Gámez

Almeraya-Calderón

Chacón-Nava

et al. 2022

Metals

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“…In addition, many studies provide strategies to optimize the performance of RAC, among which three groups can be highlighted: the use of SCMs, RAC procedural improvements, and pretreatment of RA. The use of pozzolanic SCMs as a strategy to increase the resistance of concrete to sulfate attack has shown equal or even superior efficiency in RACs compared to their respective conventional concretes (NACs) [45,54,62,65,66,71,72,78,90,91,146,147]. This is extremely important because it means that eco-efficient concretes (such as those with RA and a lower clinker factor) can perform as well as or better than comparable conventional concretes in terms of resistance to sulfate attack.…”

Section: Sulfate-resistant Rac Designmentioning

confidence: 99%

Current Knowledge and Pending Research on Sulfate Resistance of Recycled Aggregate Concrete

Santillán,

Zega,

Irassar

2024

Sustainability

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The building sector’s sustainability requires construction and demolition waste (CDW) to contribute to the circular economy. Among the CDW, recycled concrete aggregates (RA) have been mainly studied to replace natural aggregates. Still, the approval of their use in regulations and standards is slower. Some barriers to the adoption of RA are related to the durability of recycled aggregate concrete (RAC). However, their physical and mechanical properties have been extensively studied. The durability risks associated with sulfate attacks have been solved for conventional concrete. However, sulfate attack on recycled concrete still raises numerous unsolved questions. In this literature review, the experience of sulfate attack on RAC is compiled and analyzed using a compressive framework highlighting the most relevant aspects of the new matrix in RAC and the old matrix of RA to support its relevance to the damaging sulfate process. Suggestions for further research are presented to understand the full extent of this issue and contribute to incorporating and extending recycled aggregates into existing regulations.

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“…The typical corrosion process is a case of bacterial corrosion; it cannot proceed under sterile conditions and can only be carried to the acid stage through the activity of this organism. As the organism cannot exist at a higher pH than 6.5, its activity could not explain the initial stage of the process in which the pH of the fresh concrete surface (11)(12) falls to 6.5 or less. It was then suggested that this preliminary drop in pH could be brought about either by purely chemical reactions or by the activity of further species of bacteria.…”

Section: Introductionmentioning

confidence: 99%

“…The incorporation of silica fume showed changes in the rheological properties of fresh concrete. Corral et al [12]in 2011 investigated chloride ion penetrability and corrosion behavior of steel in concrete with sustainability characteristics, as well as the partial or total replacement of its components for recycled materials. For the steel bars, the corrosion is the principal problem of durability in reinforced concrete.…”

Section: Introductionmentioning

confidence: 99%

Carbonation of Reinforced Steel in Concrete with Varied Waters

Ali¹,

Riyadh²,

Ezzat³

et al. 2014

ETJ

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The objective of this work is study the carbonation of reinforced steel in different solutions include artificial seawater (3.5% NaCl), river water and domestic water by electrochemical method at room temperature. Corrosion parameters were measured to calculate corrosion rates from polarization curves. Cyclic polarization was tested to know the possibility of occurring for pitting corrosion. Both Tafel plot and cyclic polarization indicate that the corrosion of reinforced steel was the lowest in river water due to the impurities and clay in this water which can be inter to the pores in concrete and it does not allow to occur carbonation of reinforced steel in addition to forming calcium salts with anions in river water more than forming calcium carbonate which close the pores of concrete. The results were supplemented with optical microscopy.

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Chloride Ion Penetrability and Corrosion Behavior of Steel in Concrete with Sustainability Characteristics

Cited by 29 publications

References 32 publications

Corrosion Behavior of Passivated CUSTOM450 and AM350 Stainless Steels for Aeronautical Applications

Corrosion Behavior of Passivated CUSTOM450 and AM350 Stainless Steels for Aeronautical Applications

Current Knowledge and Pending Research on Sulfate Resistance of Recycled Aggregate Concrete

Carbonation of Reinforced Steel in Concrete with Varied Waters

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