Carbonate Coatings as Protective Barriers for Pipe Borne Water Transport Material


This paper presents the report of corrosion prevention study carried out on plain carbon steel lined with calcite, magnesium carbonate and dolomite as coats. Eight samples each of the steel were dipped into solutions of CaCO3, CaCO3 and MgCO3, and MgCO3. Pipe borne water obtained from Obafemi Awolowo University, Ile-Ife water works was used as the environment. The corroded sample surfaces were subject to microstructural characterization using optical microscopy technique. The results obtained showed that the steel exhibited minimum corrosion rate of less than 0.5 mm/yr in dolomite, followed by MgCO3 and then by CaCO3 with corrosion rate far above 0.5 mm/yr bench mark. The unlined (control) samples have maximum corrosion rate of 0.8 mm/yr. the microstructures revealed widespread localized attacks and to a uniform corrosion. The dolomite lined samples are recommended for corrosion prevention of plain carbon steel in pipe borne water.

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L. Umoru, A. Oladipo and O. Ige, "Carbonate Coatings as Protective Barriers for Pipe Borne Water Transport Material," Journal of Minerals and Materials Characterization and Engineering, Vol. 11 No. 6, 2012, pp. 609-617. doi: 10.4236/jmmce.2012.116044.

Conflicts of Interest

The authors declare no conflicts of interest.


[1], accessed on 16/11/2007
[2] Amethyst Galleries, Inc,, accessed on 21/12/2007
[3] Amethyst Galleries, Inc,, accessed on 17/11/2007
[4] Hasson, D., Keysar, S., Semiat, R. and Bramson, D., Corrosion Protection of Mild Steel by a Calcite Layer. Advance ACS Abstracts 1997, 36 (8), 2903-2909
[5] McClanahan, M.A. and Mancy, K.H., Effect of pH on Quality of CaCO3 Deposited from Moderately Hard Water. J. Am. Water Works Assoc. 1974, pp 49, 66
[6] Snoeyink, V.I. and Kuch, A., Principles of Metallic Corrosion in Water Distribution Systems, Internal Corrosion of Water Distribution Systems, AWWA Research Foundation and DVGW, Denver, CO, USA, 1985
[7] Legrand, A. and Leroy, Y., Prevention of Corrosion and Scaling in Water Supply Systems, Ellis Horwood Series in Water and Waste Water Technology, New York, 1990, p. 262
[8] Feigenbaum, C., Gar-Or, L. and Yahalom, J., Scale Protection Criteria in Natural Water’, Corrosion 1978, 34(4), p.133
[9] Umoru,L.E.; Ige, O.O. Effects of Tin on Al-Zn-Mg Alloy as Sacrificial Anode in Seawater. JMMCE 2007, 7(2), 105-113

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