The effect of organic core–shell corrosion inhibitors on corrosion performance of the reinforcement in simulated concrete pore solution

Hu, Jie; Zhu, Yangyang; Hang, Jinzhen; Zhang, Zhangmin; Ma, Yuwei; Huang, Haoliang; Yu, Qijun; Wei, Jiangxiong

doi:10.1016/j.conbuildmat.2020.121011

Cited by 35 publications

(7 citation statements)

References 36 publications

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“…From Figures 1 and 2, the polarization curve of the specimen without inhibitor at 50 O C has the lowest potential value and the highest current. Therefore, the greatest corrosion rate is specimen without inhibitor at 50 O C. In this study, the electrochemical corrosion parameters such as corrosion potential (Ecorr) and corrosion current densities (Icorr) were automatically calculated based on Butler-Volmer and Tafel equations [9]. Tafel slope analysis and fitting of the polarization curves were performed using Echem analyst software to obtain the corrosion rate of API 5L carbon steel.…”

Section: Polarization Test Resultsmentioning

confidence: 99%

Exploration of Eucheuma Seaweed Algae Extract as a Novel Green Corrosion Inhibitor for API 5L Carbon Steel in Hydrochlorid Acid Medium

2022

IJE

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Regarding the issue of green chemistry and the vision of human sustainability, a novel corrosion inhibitor for API 5L carbon steel was explored from Eucheuma seaweed algae. The inhibiting performance of Eucheuma extract was studied by electrochemical measurements such as potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). In this work, the Fourier Transform Infra-Red (FTIR) was also employed to confirm the main phenolic compounds of Eucheuma extract. The electrochemical measurement result indicated that the Eucheuma extract was an efficient corrosion inhibitor in reducing corrosion attacks of API 5L carbon steel in hydrochloric acid medium. The improved corrosion resistance is attributed to the complicated items, including extract concentration and holding time. Eucheuma inhibitor efficiency up to 90% (96.4%) with concentration 500ppm and 30min holding time indicated that Eucheuma could be used as a green inhibitor. It was found that the Eucheuma extract was a mixed-type corrosion inhibitor that inhibit both the cathodic and anodic corrosion reaction. This study was helpful to discover the seaweed algae that was abundant in Indonesia's marine for inhibiting corrosion of API 5L carbon steel in an aggressive environment.

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Section: Polarization Test Resultsmentioning

confidence: 99%

Exploration of Eucheuma Seaweed Algae Extract as a Novel Green Corrosion Inhibitor for API 5L Carbon Steel in Hydrochlorid Acid Medium

2022

IJE

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“…In many applications that require nanostructured particles to impart specialized properties such as superhydrophobicity [27], lubrication [28], corrosion resistance [29], etc., core-shell particles are used to stabilize the nanoparticles and prevent aggregation. Thus, while the core-shell structure in itself does not contribute to the property sought, it plays a supporting role.…”

Section: Synthesis Of Core-shell Particlesmentioning

confidence: 99%

Core shell particles

Gopal

Sudarshan

2022

Surface Engineering

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“…However, when harmful media (carbon dioxide, chloride, sulfate, etc.) penetrate into the concrete, the internal environment pH drops and the passive film of the steel rebar may be damaged [ 4 , 5 ], resulting in corrosion of the steel rebar. Rust volume may be five times larger than that of un-corroded steel, so internal cracks may occur.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nano-SiO2/PVA on Corrosion Behavior of Steel Rebar Embedded in High-Volume Fly Ash Mortar under Accelerated Chloride Attack

Huang

Wang

et al. 2022

Materials

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In this paper, the influence of Nano-silica (NS) and Polyvinyl alcohol (PVA) fibers on the corrosion behavior of steel rebar embedded in high-volume fly ash cement mortars under accelerated chloride attack was studied by using an impressed voltage technique. The PVA fibers used were 1.0 vol.%, and two mass fractions of cement (50 and 60 wt.%) were replaced by fly ash. Four NS mass fractions (0, 0.5, 1.0, and 1.5 wt.%) were utilized in this paper. In addition, the mono and hybrid effects of NS and PVA on the mechanical properties and water absorption of mortar were also studied. The results showed that the incorporation of PVA and nano-SiO2 can improve the flexural and compressive strengths of high-volume fly ash mortar. Generally, the flexural and compressive strengths increased with the increase of nano-SiO2 content. Moreover, the incorporation NS can also reduce the capillary water–absorption rate of cement mortar. The impressed voltage corrosion test indicated that the composite incorporation of nano-SiO2 and PVA can significantly delay the deterioration process of steel bars in mortar, effectively reducing the steel rebar’s corrosion level and increasing the exposure time of the surface crack. With hybrid-incorporation 1.0 vol.% PVA and 1.0 wt.% nano-SiO2, the steel rebar had the lowest corrosion degree, which exhibited a mass loss of 49% and increased the broken time by 71% as compared to the control mortar.

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The effect of organic core–shell corrosion inhibitors on corrosion performance of the reinforcement in simulated concrete pore solution

Cited by 35 publications

References 36 publications

Exploration of Eucheuma Seaweed Algae Extract as a Novel Green Corrosion Inhibitor for API 5L Carbon Steel in Hydrochlorid Acid Medium

Exploration of Eucheuma Seaweed Algae Extract as a Novel Green Corrosion Inhibitor for API 5L Carbon Steel in Hydrochlorid Acid Medium

Core shell particles

Effect of Nano-SiO2/PVA on Corrosion Behavior of Steel Rebar Embedded in High-Volume Fly Ash Mortar under Accelerated Chloride Attack

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