阴极型阻锈剂在氯盐混凝土中阻锈效果的研究  

Corrosion resistance effect of cathodic inhibitors in chloride concrete

作　　者：林鑫源 梅侃泽 李晓珍[2] 舒海斌 王建民[1] 柳俊哲[1] LIN Xinyuan;MEI Kanze;LI Xiaozhen;SHU Haibin;WANG Jianmin;LIU Junzhe(School of Civil and Environmental Engineering,Ningbo University,Ningbo 315211,China;Architectural Engineering Institute,Jinhua Polytechnic,Jinhua 321000,China)

机构地区：[1]宁波大学土木与环境工程学院,浙江宁波315211 [2]金华职业技术学院建筑工程学院,浙江金华321000

出　　处：《水资源与水工程学报》2022年第2期165-171,178,共8页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(51778302);浙江省自然科学基金项目(LQ20E080011);浙江省教育厅科研项目(Y202146609)。

摘　　要：以探究含氯盐混凝土内阴极型阻锈剂的阻锈性能为目标,借助半电池电位法、钢筋失重法、线性极化法、交流阻抗谱法、X-射线光电子能谱(XPS)等方法,研究了不同阴极型阻锈剂的阻锈性能和掺量之间的关系。结果表明:在掺入阴极型阻锈剂(苯并三氮唑BTA,N,N-二甲基乙醇胺DMEA)的含氯盐混凝土中,钢筋的锈蚀情况较未掺入阴极型阻锈剂时有较大的改善;相同阻锈剂掺量下,BTA阻锈剂的阻锈效果优于DMEA阻锈剂;根据试验结果预测BTA阻锈剂阻锈效果在掺量比为m(Cl^(-))∶m(BTA)=1∶4会更好,DMEA阻锈剂阻锈效果在掺量比例为1∶2~1∶4之间最佳。In order to investigate the performance of cathodic inhibitors in chloride concrete,the relationship between the performance and dosage of different corrosion inhibitors were studied using the half-cell potential method,steel mass loss method,linear polarization method,AC impedance spectroscopy method and X-ray photoelectron spectroscopy(XPS).The results show that in chloride concrete mixed with cathodic corrosion inhibitors(BTA and DMEA),the corrosion of the steel bars were greatly reduced compared to those without cathodic corrosion inhibitors.The effect of BTA was better than that of DMEA at the same dosage.According to the results,the performance of BTA will be better when the dosage ratio of chloridion to BTA is 1∶4,whereas that of DMEA is optimal when the dosage ratio of chloridion to DMEA is between1∶4 and 1∶2.

关 键 词：钢筋混凝土 阴极型阻锈剂 氯离子 X-射线光电子能谱(XPS) 阻锈性能 

分 类 号：TV424[水利工程—水工结构工程]