不同介质中复合型醇胺阻锈剂对钢筋混凝土性能的影响
Effect of composite alcoholamine rust inhibitors in different medium on the performance of reinforced concrete
关键词：
复合型醇胺阻锈剂；三异丙醇胺；混凝土；抗压强度；钢筋；锈蚀；交流阻抗谱
Key words：
Composite alcoholamine rust inhibitor; Triisopropanolamine; Concrete; Compressive strength; Steel bar; Rust; AC impedance spectrum
刊期：
2025年第9期
DOI：
10.19761/j.1000-4637.2025.09.001.06
文章编号：
基金项目：
国家自然科学基金项目（52168033）。
作者：
刘佳棋1，宋洪彬1，曲树强2，杭美艳1，*，徐广飞3
单位：
1.内蒙古科技大学，内蒙古 包头 014000；2.包头市安顺新型建材公司，内蒙古 包头 014000；3.包头钢铁职业技术学院，内蒙古 包头 014000
摘要
摘 要：制备了不同组分的复合型醇胺阻锈剂（粉剂），并研究其在不同介质（盐介质和水介质）中对混凝土强度及钢筋锈蚀的影响。结果表明：水介质中，SJ组试件28 d的抗压强度最高；盐介质中，NSJ 组试件28 d的抗压强度最高；掺相同阻锈剂时，盐介质中试件的强度基本高于水介质中的试件；SJ组试件中钢筋的容抗弧半径和阻抗幅模值最大，钢筋抗锈蚀能力较强；综合来看，三异丙醇胺+聚合多元醇复合阻锈剂的阻锈效果最优。
Abstract: A composite alcoholamine rust inhibitor(powder) with different components was prepared, and its effects on concrete strength and steel bar corrosion in different media (salt medium and water medium) were studied. The results show that in the water medium, the SJ group specimen has the highest 28 d compressive strength. In the salt medium, the NSJ group specimen has the highest 28 d compressive strength. When the same rust inhibitor is added, the strength of the specimen in the salt medium is generally higher than that in the water medium. The capacitance arc radius and impedance amplitude modulus of the steel bars in the SJ group specimens are the largest, indicating strong corrosion resistance of the steel bars. Overall, the triisopropanolamine+polymerized polyol group composite rust inhibitor has the best rust resistance effect.
结论
（1）水介质中，SJ组试件28 d的抗压强度最高；盐介质中，NSJ 组试件28 d的抗压强度最高。掺相同阻锈剂（阻锈剂成分相同）时，盐介质中试件的强度基本高于水介质中的试件。
（2）掺阻锈剂试件中钢筋的容抗弧半径和阻抗幅模值较大，其中，NSJ组试件中钢筋的容抗弧半径和阻抗幅模值最大，钢筋抗锈蚀能力较强，阻锈剂的加入使钢筋表面钝化膜覆盖更加致密，有效阻碍了Cl-与钢筋表面的接触，降低了钢筋的锈蚀速度，抑制了锈蚀的发生。
（3）各组试件的水化产物均有C-S-H 凝胶、AFt、AFm、Ca(OH)2晶体。JB、JSJ、JNSJ组试件中Si元素峰占比较大，Si元素生成了C-S-H凝胶填充内部孔隙，使得试件的结构更密实。
（4）本文制备的4种阻锈剂中，掺三异丙醇胺+聚合多元醇阻锈剂组试件的强度较优，钢筋的容抗弧半径最大，阻锈效果最好，可用于盐渍土地区工程中。
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引用本文
刘佳棋,宋洪彬,曲树强,等.不同介质中复合型醇胺阻锈剂对钢筋混凝土性能的影响[J].混凝土与水泥制品,2025(9):1-5,9.
LIU J Q,SONG H B,QU S Q,et al.Effect of composite alcoholamine rust inhibitors in different medium on the performance of reinforced concrete[J].China Concrete and Cement Products,2025(9):1-5,9.
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