MODELLING KOROSI BAJA TULANGAN BETON PADA LINGKUNGAN YANG AGRESIF

Agus Purwanto

Abstract

The measurement of electrochemical impedance spectroscopy (EIS) and the use of model are exercised to probe the undergoing corrosion process on concrete steel rebar under aggressive ·envitfJnment. The ordinary Randles model and original Matsuoka model turn out inadequate in fitting the measured EIS data. The uses of parallel model plus Warburg diffusion fit the data quite well and modifying the Matsuoka model increase the fitting accuracy even more. It can be seen that the corrosion process takes place in cyclical steps. Starting with passive stage, high rates corrosion and followed by passive layer formation. The passive layer then breakdown and the corrosion reaction starting again.

Full Text:

PDF

References

Albery, john, Electrode Kinetics, Clarendon Press, Oxford, 1975, pp 18-91

Bentur,A., Diamond S Berke,N.S.,Corrosion of Rei?f?rcementi?

Concrete Structure, I, E & FN SPON London, 1997 ' [3] Bertuci, Ugo, A Comparison of Electrochemical Noise and Impedance Spectroscopy for the Detection of Corrosion in Reinforced Concrete Electrochemical Noise Measurement· fo? Corrosion Aplications, ASTM STP 127 Jeffery R. Kearns, John R. Scully, Pierr? R. Roberge, David L. Reichert, and John

L. Dawson, Eds. , American Society for Testing and Material, 1996, pp 39-58.

Faber, John, Mead, Frank, Reinforcement Concrete, J:LBS ed.. The English Language Book Society and E&F.N. Span LTD.,1965, pp 1-60

[SJ Felui,S., M. Morcillo, Chico, B., Effect of Distance from Sea on Atmospheric Corrosion Rate, Corrosion - The Journal of Science and Engineering, Vol. 55, No. 9, September, NACE International-The Corrosion Society, 1999,pp 883-891

Fontana, Mars G., Corrosion Engineering, 3-rd ed., McGraw Hill Book Company, pp 372-373, 1986, 499-502.

(7) Hausmann, DA, A Probability Model of Steel Corrosion in Concrete, Material Performance, Vol. 37, No. 10, October, An official NACE international Publication USA, 1998, pp 64-68.

(8) John, D.G., Eden, D.A., Langford,P.E., Dawson, J.L.,Corrosion Measurement on Reinforcing Steel and MonitOring of Concrete Structures,_ Corrosion of Metal in Concrete, Proceedings of the Corrosion Symposium on Corrosion of Metal in

Concrete, National Corrosion of Corrosion

Engineers, 1987 ,pp 159-167.

(9) Macdonald, Digby D.,McKubre,M.,UrquidiMacdonald,M., Theoritical Assesment of AC Impedance Spectroscopy for Detecting

Corrosion of Rebar in Reinforced Concrete,_ Corrosion of Metal in Concrete, Proceedings of the Corrosion I 87 Symposium on Corrosion of Metal in Concrete, National Corrosion of Corrosion Engineers, 1987, pp 30-41.

(1O)Masfield,Florian,xiao,Hong,E/ectrochemica/ Noise and Impedance Analysis of Iron in Chloride Media, Electrochemical Noise Measurement for Corrosion Aplications, ASTM STP 127, Jeffery R. Keams, John R. Scully, Pierre R. Roberge, David L. Reichert, and John L. Dawson, Eds. , American Society for Testing and Material, 1996, pp 59-78.

(11]Matsuoka, K, Murata,T., Kihira,H, lto,S.,Monitoring Of Corrosion Of

Reinforcing Bar in Concrete, Corrosion of Metal in Concrete, Proceedings of the Corrosion Symposium on Corrosion of Metal in Concrete, National Corrosion of Corrosion Engineers, 1987, pp 42-48.

Purwanto, A., Reinforced steel corrosion and the use of cement adittives foR corrosion protection", Master Thesis, Sepuluh Nopember Institute of Technology-Surabaya, 2002

DOI: https://doi.org/10.20961/ekuilibrium.v1i1.49596

Refbacks

  • There are currently no refbacks.