单氟磷酸钠在混凝土模拟孔隙液中的缓蚀特性
INHIBITION EFFECT OF Na2PO3F ON CORROSION OF REINFORCING STEEL IN SIMULATED CONCRETE PORE SOLUTION
摘 要
采用动电位极化曲线和电化学阻抗谱研究了Na2PO3F在模拟混凝土孔隙液中对钢筋的保护作用.Na2PO3F的加入导致混凝土钢筋的腐蚀电位负移,对钢筋的阴极和阳极电化学过程均有抑制作用,是一种混合型缓蚀剂.Na2PO3F能够在钢筋表面形成沉淀型保护膜,阻挡侵蚀性离子对钢筋的侵蚀.
钢筋混凝土
腐蚀
极化曲线
电化学阻抗谱
Na2PO3F
Reinforced concrete
Corrosion
Polarization curve
Electrochemical impedance spectroscopy
Abstract
The inhibition effect of Na2PO3F on reinforcing steel corrosion was investigated by electrochemical polarization curves and electrochemical impedance spectroscopy in simulated pore solution.The cathodic reaction of steel electrode was suppressed and passive region current density of anodic process was depressed.It acted as a mixing type inhibitor in concrete.The electrochemical reaction can be suppressed by forming a desposition film in the steel/concrete interface,which retards the attack by aggressive Cl-.
中图分类号 TG174.42
所属栏目 试验研究
基金项目 上海市重点(培育)学科(P1304)资助
收稿日期 2006/3/15
修改稿日期 2006/4/20
网络出版日期
作者单位点击查看
引用该论文: ZHANG Da-quan,ZHANG Wan-you,WANG Wei,ZHOU Guo-ding. INHIBITION EFFECT OF Na2PO3F ON CORROSION OF REINFORCING STEEL IN SIMULATED CONCRETE PORE SOLUTION[J]. Corrosion & Protection, 2007, 28(2): 55～57
被引情况:
【1】赵少飞,曾丽珍,李伟善,蔡宗平,谭春林, "室温硫化硅橡胶对碳钢电极缝隙腐蚀的抑制作用",腐蚀与防护 32, 116-118(2011)
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】Ngala V T,Page C L,Page M M.Corrosion inhibitor systems for remedial treatment of reinforced concrete.Part 1:calcium nitrite[J].Corro Sci,2002(44):2073-2087.
【2】Monticelli C,Frignani A,Trabanelli G.A study on corrosion inhibitors for concrete application[J].Cement and concrete research,2000(30):635-642.
【3】Ngala V T,Page C L,Page M M.Corrosion inhibitor systems for remedial treatment of reinforced concrete.Part 2:sodium monofluorophosphate[J].Corro Sci,2003(45):1523-1537.
【4】张大全,安仲勋,潘庆谊,等.吗啉多元胺对混凝土钢筋的阻锈作用[J].材料保护,2004,37(8):4-6.
【5】Hansson C M,Mammoliti L,Hope B B.Corrosion inhibitors in concrete-part Ⅰ:the principles[J].Cement and concrete research,1998,28(12):1775-1781.
【6】安仲勋,潘庆谊,张大全,等.新型吗啉类气相缓蚀剂的电化学研究[J].材料保护,2003,36(5):14-16.
【2】Monticelli C,Frignani A,Trabanelli G.A study on corrosion inhibitors for concrete application[J].Cement and concrete research,2000(30):635-642.
【3】Ngala V T,Page C L,Page M M.Corrosion inhibitor systems for remedial treatment of reinforced concrete.Part 2:sodium monofluorophosphate[J].Corro Sci,2003(45):1523-1537.
【4】张大全,安仲勋,潘庆谊,等.吗啉多元胺对混凝土钢筋的阻锈作用[J].材料保护,2004,37(8):4-6.
【5】Hansson C M,Mammoliti L,Hope B B.Corrosion inhibitors in concrete-part Ⅰ:the principles[J].Cement and concrete research,1998,28(12):1775-1781.
【6】安仲勋,潘庆谊,张大全,等.新型吗啉类气相缓蚀剂的电化学研究[J].材料保护,2003,36(5):14-16.
相关信息
