The effect of concrete pore solution composition on the quality of passive oxide films on black steel reinforcement
Source abstract
Abstract
Abstract The effect of concrete pore solution composition on the protective properties of the oxide films that form on black reinforcing steel has been experimentally investigated using anodic polarization and electrochemical impedance spectroscopy (EIS). The tests were conducted on oxide films grown in saturated calcium hydroxide solutions that included different representative amounts of NaOH, KOH, and Ca(SO4), which are compounds that are commonly observed in most ordinary portland cement concrete types. The results of both anodic polarization and EIS tests show that pore solution composition has an effect on the protective properties of the passive oxide films and, in particular, sulfate ions ( SO 4 ) 2 - have been shown to have a negative influence on the film quality.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete Corrosion and Durability · Corrosion Behavior and Inhibition · Concrete and Cement Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (31)
Show source-provided references
1. Broomfield · 1997
2. Reinforcement corrosion in concrete structures, its monitoring and service life prediction – a review10.1016/S0958-9465(02)00086-0 ↗
3. EIS study of passivation of austenitic and duplex stainless steels reinforcement in simulated pore solution10.1016/j.cemconcomp.2006.01.012 ↗
4. Study on corrosion inhibitors for concrete application10.1016/S0008-8846(00)00221-0 ↗
5. A study on chloride-induced depassivation of mild steel in simulated concrete pore solution10.1016/S0008-8846(02)00895-5 ↗
6. Equilibria of the chemical composition of the concrete pore solution. Part I: comparative study of synthetic and extracted solutions10.1016/0008-8846(87)90100-1 ↗
7. Chemical composition of cement pore solutions10.1016/0008-8846(89)90022-7 ↗
8. Pore solution compositions and chloride binding capacity of silica fume cement paste
9. Neville · 2005
10. Synthetic concrete pore solution chemistry and rebar corrosion rate in the presence of chlorides10.1016/0008-8846(90)90097-H ↗
11. Corrosion rate of galvanized steel in saturated solutions of Ca(OH)2 in the pH range 12–13.810.1179/bcj.1983.18.2.82 ↗
12. Reinforcing steel passivation in mortar and pore solution10.1016/j.cemconres.2007.04.005 ↗
13. Influence of cation on corrosion behavior of reinforcing steel in high-pH sulfate solutions
14. Rondelli G, Lazzari L, Ormellese M, Rovoa R, Perez E. Study of carbon steel corrosion inhibition in alkaline solution by means of EIS. In: Marcus P, Maurice V, editors. Proceedings of the international conference on passivation of metals, and properties of thin oxide layers, Paris, 2006. p. 709.10.1016/B978-044452224-5/50108-6 ↗
15. Analytical characterization of the passive film formed on steel in solutions simulating the concrete interstitial electrolyte10.5006/1.3284861 ↗
16. The influence of sulfate ions on the surface enhanced Raman spectra of passive films formed on iron10.1016/0010-938X(94)90036-1 ↗
17. Marcotte TD. Characterization of chloride-induced corrosion products that form in steel-reinforced cementitious materials. PhD thesis, Waterloo, University of Waterloo; 2001.
18. An assessment on the mill scale effects on the electrochemical characteristics of steel bars in concrete under DC-polarization10.1016/j.cemconres.2006.03.015 ↗
19. Chloride threshold of reinforcing steel in alkaline solutions – open-circuit immersion tests10.5006/1.3290325 ↗
20. ASTM G 5-94 · 2007
21. Chloride threshold of reinforcing steel in alkaline solutions – effect of specimen size10.5006/1.3287721 ↗
22. Raktoe · 1981
23. The breakdown of passive films on iron10.1016/0010-938X(88)90009-1 ↗
24. Chloride threshold of reinforcing steel in alkaline solutions – cyclic polarization behaviour10.5006/1.3287678 ↗
25. A contribution to the applicability of critical pitting potentials10.1149/1.2407756 ↗
26. Revie · 2008
27. Conway · 1952
28. Corrosion of reinforcing steel in neutral and acid solutions simulating the electrolytic environments in the micropores of concrete in the propagation period10.1016/j.corsci.2004.06.004 ↗
29. Oxygen reduction on mild steel and stainless steel in alkaline solutions
30. Brem M. Numerische Modellierung der Korrosion an Stahlbetonbauten. PhD thesis. ETH Zürich No. 15567, 2004.
31. The polarization resistance technique for measuring corrosion currents