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Implications of eco-addition inhibitor to mitigate corrosion in reinforced steel embedded in concrete

机译：生态加法抑制剂对混凝土挤压钢腐蚀的影响

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摘要

The deleterious and entanglement of synthetic inhibitors provokes a platform for assessment of Rosa damascena (R. damascena) leaves as a green corrosion inhibitor on reinforced steel rebar. The inhibitory action was realised by electrochemical impedance spectroscopy and polarisation studies in simulated pore solution. Electrochemical measurements showed that the charge transfer resistance increases as the concentration of acid and ethanol extracts of R. damascena increases. Tafel polarisation curves divulge that the potential is shifted towards positive side evincing the nobility of the inhibitor. The experimental model for adsorption obeyed Langmuir adsorption isotherm disclosing the physisorption behaviour. The maximum protection efficiency is 82% at a concentration of 12 v/v %. SEM images stipulates the chelating effect of phytochemical constituents containing hetero atoms such as O, N, aromatic rings and pi-electrons interacting with iron ions resulting in the shielding of the metal from corrosion. (C) 2019 Elsevier Ltd. All rights reserved.
机译：合成抑制剂的有害和纠缠引起了ROSA Damascena（R.Amascena）作为钢筋钢筋的绿色腐蚀抑制剂评估的平台。通过模拟孔溶液中的电化学阻抗光谱和偏振研究实现了抑制作用。电化学测量结果表明，随着R.Amascena的酸和乙醇提取物的浓度增加，电荷转移阻力增加。 Tafel偏振曲线泄露，潜力转向积极侧，表达抑制剂的高度。吸附的实验模型术后朗米尔吸附等温线揭示了物理吸附行为。最大保护效率为82％，浓度为12 v / v％。 SEM图像规定了含有杂种原子的植物化学成分的螯合作用，例如与铁离子相互作用的o，n，芳环和Pi型，导致金属屏蔽腐蚀。 （c）2019 Elsevier Ltd.保留所有权利。

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