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Construction & building materials v.134, 2017년, pp.167 - 175   SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Application of wire beam electrode technique to investigate the migrating behavior of corrosion inhibitors in mortar

Shi, Wei (The Key Laboratory for Mechanical Behavior and Microstructure of Materials of Guizhou Province, College of Materials and Metallurgy, Guizhou University, Guiyang, Guizhou 550003, China ) ; Wang, Tian-Zheng (State Grid Shanxi Electric Power Research Institute, Taiyuan 030001, China ) ; Dong, Ze-Hua (Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ) ; Guo, Xing-Peng (Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China ) ;
  • 초록  

    Abstract The migration rate and inhibitive effect on rebar corrosion of migrating corrosion inhibitors (MCIs) in mortar were studied using wire beam electrode technique with high temporal and spatial resolution. The MCIs readily diffused through the mortar but exhibited preferential adsorption on the bare metal surfaces rather than on the rust layer on rebars. The ingress of MCIs in mortar increased the resistance on general corrosion much more than localized corrosion. This increase was mainly attributed to the sealing effect on mortar pores (pore-blocking effect) rather than on chemical absorption. Highlights Wire beam electrode technique can evaluate the migration of inhibitor under mortar. Preferential absorption of MCIs were directly detected by using WBE technique. The so-called pore-blocking effect of MCI could be distinguished by using WBE technique. Graphical abstract The migration rate and inhibitive effect on rebar corrosion of migrating corrosion inhibitors (MCIs) in mortar were studied using wire beam electrode technique with high temporal and spatial resolution. The MCIs readily diffused through the mortar but exhibited preferential adsorption on the bare metal surfaces rather than on the rust layer on rebars. The ingress of MCIs in mortar increased the general corrosion resistance. This increase was mainly attributed to the sealing effect on mortar pores (pore-blocking effect) rather than on chemical absorption. [DISPLAY OMISSION]


  • 주제어

    A.   Steel-reinforced concrete .   B.   Wire beam electrode .   C.   Alkaline corrosion .   D.   Migrating corrosion inhibitor.  

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