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首页> 外文期刊>RSC Advances >Alcamines as corrosion inhibitors for reinforced steel and their effect on cement based materials and mortar performance
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Alcamines as corrosion inhibitors for reinforced steel and their effect on cement based materials and mortar performance

机译：铝胺作为钢筋的缓蚀剂及其对水泥基材料和砂浆性能的影响

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Testing steel in solution has the advantage of avoiding the long time necessary for chlorides to penetrate the concrete cover. The effect of some alcamines, namely TIPA85 and CA92 as corrosion inhibitors for reinforced steel bars in 3.5% NaCl and chloride contaminated saturated concrete pore solution (3.5% NaCl + SCP) was discussed using electrochemical techniques. The characteristic effect of studied compounds on the cement and its mortars was explained by chemical and physical techniques. Results show that alcamines can be used as corrosion inhibitors, grinding aid raw materials and improvers of cement quality. TIPA85 has a higher corrosion inhibition efficiency than CA92 as indicated from the results of potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), molecular dynamics simulation and quantum chemical calculation methods. A mixed physical and chemical adsorption mechanism is proposed. Adsorption of these alcamines was found to follow the Langmuir adsorption isotherm.
机译：在溶液中测试钢的优点是避免了氯化物渗入混凝土表皮所需的长时间。使用电化学技术讨论了一些胺类化合物（即TIPA85和CA92）在3.5％NaCl和氯化物污染的饱和混凝土孔隙溶液（3.5％NaCl + SCP）中对钢筋的腐蚀抑制剂的作用。用化学和物理技术解释了所研究化合物对水泥及其灰浆的特征作用。结果表明，alcamines可用作缓蚀剂，助磨剂原料和水泥质量改良剂。从电位动力学极化，电化学阻抗谱（EIS），分子动力学模拟和量子化学计算方法的结果表明，TIPA85具有比CA92更高的腐蚀抑制效率。提出了一种混合的物理和化学吸附机理。发现这些alcamines的吸附遵循Langmuir吸附等温线。

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