Keywords
Corrosion phenomena
environmental context
soil corrosively
soil physicochemical
How to Cite
Abstract
Soil corrosivity was an active problem of water pipeline damaged by corrosion that affects the performance of pipe manufacturers. In Addis ababa, groundwater pipelines were facing breakage and like due to corrosion damage of the pipes. The population of nearly four million were facing a shortage of clean and continuous water supply. Maintenace and replacing old pipes with new ones increased additional cost and delay of water supply for the city. For this investigation of corrosion, causes were conducted which soil property is the one factor. Investigation of soil corrosivity for a given specific location before installation is important to design robust pipes that can serve for long life. Soil physicochemical behaviors of the soil parameters were pH, moisture content, and electrical resistivity for any type of soil. In addition, soil bulk density, total nitrogen, soil texture, and electrical conductivity were also the main factors to be studied. The laboratory result indicated that pH of 6.98-7.04, moisture content of 23.7-37.5%, and electrical conductivity of 0.105-313 ds/m were observed. Total nitrogen was small as 0.06-0.10 for a type of soil were class and loam soils. From the analysis of eight soil samples taken from different cities. The results show that the corrosivity behavior of buried iron pipes in the capital city of Ethiopia was moderately corrosive. As confirmed from various soil samples tested from corroded pipes at different depths of 40, 80, and 120 cm. The influence of soil corrosiveness factors initiates pits formation and propagates its width and depth on the surface of pipes.
References
Terzaghi K, Peck RB, Mesri G. Soil mechanics in engineering practice. John Wiley & Sons 1996.
Noor EDNBM, Rabe’ah binti Othman ES. Soil Corrosion and Integrity Management of Buried Pipeline. Clay Science 2009; 42(356).
Koch G, Varney J, Thompson N, Moghissi O, Gould M, Payer J. International measures of prevention, application, and economics of corrosion technologies study. NACE International 2016; 216.
Villanueva-Balsera J, Ortega-Fernandez F, Rodriguez-Perez F. Methods to evaluate corrosion in buried steel structures: A review. Metals 2018; 8(5): 334. https://doi.org/10.3390/met8050334
Bhattarai J, Poudyal D, Dahal KP. January. Study on the soil corrosivity towards the buried-metallic pipes in Kathmandu and Chitwan valley of Nepal. In Proc. 17th Asia Pacific Corros. Contr. Conf. (APCCC17), 2016; pp. 27-30.
Deo RN, Rathnayaka S, Zhang C, Fu GY, Shannon B, Wong L, Kodikara JK. Characterization of corrosion morphologies from deteriorated underground cast iron water pipes. Materials and Corrosion 2019; 70(10): 1837-1851. https://doi.org/10.1002/maco.201910906
Wranglen G. An Introduction to Corrosion and Protection of Metals” Chapman and Hall, New York 1985.
Shi F, Peng X, Liu Z, Li E, Hu Y. A data-driven approach for pipe deformation prediction based on soil properties and weather conditions. Sustainable Cities and Society 2020; 55: 102012. https://doi.org/10.1016/j.scs.2019.102012
Gadala IM, Alfantazi A. Electrochemical behavior of API-X100 pipeline steel in NS4, near-neutral, and mildly alkaline pH simulated soil solutions. Corrosion Science 2014; 82: 45-57. https://doi.org/10.1016/j.corsci.2013.12.020
Seghier MEAB, Keshtegar B, Tee KF, Zayed T, Abbassi R, Trung NT. Prediction of maximum pitting corrosion depth in oil and gas pipelines. Engineering Failure Analysis 2020; 104505.
Sparks DL. Method of soil analysis: chemical methods. SSSA Book Series (part 3). Soil Science Society of America, Madison 1996.
Roberge PR. Handbook of corrosion engineering. McGraw-Hill 2000.
Dahal KP, Dinesh KC, Bhattarai J. Study on the soil corrosivity towards the buried water supply pipelines in Madhyapur Thimi municipality, Bhaktapur. Bibechana, 2014; 11: 94-102. https://doi.org/10.3126/bibechana.v11i0.10387
Daku S, Diyelmak V, Otitolaiye O, Abalaka I. Evaluation of soil corrosivity using electrical resistivity method: a case study of part of the university of Jos permanent site 2019.
Pękala A, Pietrucha-Urbanik K. The influence of the soil environment on the corrosivity of failure infrastructure-case study of the exemplary water network. Archives of Civil Engineering 2018; 64(1): 133-144. https://doi.org/10.2478/ace-2018-0009
Lins VDFC, Ferreira MLM, Saliba PA. Corrosion resistance of API X52 carbon steel in soil environment. Journal of Materials Research and Technology 2012; 1(3): 161-166. https://doi.org/10.1016/S2238-7854(12)70028-5
El Hajj H, Abdelouas A, El Mendili Y, Karakurt G, Grambow B, Martin C. Corrosion of carbon steel under sequential aerobic–anaerobic environmental conditions. Corrosion Science 2013; 76: 432-440. https://doi.org/10.1016/j.corsci.2013.07.017
Suganya S, Jeyalakshmi R, Rajamane NP. Corrosion behavior of mild steel in an in-situ and ex-situ soil. Materials Today: Proceedings 2018; 5(2): 8735-8743.
Pavel Ș, Pascu IB, Țăranu BO, Grad OA, Negrea R, Doboși IS. Aspects regarding the prediction of earth electrode corrosion in the soil of Timisoara. In E3S Web of Conferences. EDP Sciences 2019; Vol. 111.
Li M, Liu Z, Chen Y, Hai Y. Characteristics of iron corrosion scales and water quality variations in drinking water distribution systems of different pipe materials. Water Research 2016; 106: 593-603. https://doi.org/10.1016/j.watres.2016.10.044
Singh V, Agrawal H. Qualitative soil mineral analysis by EDXRF, XRD and AAS probes. Radiation Physics and Chemistry 2012; 81(12): 1796-1803. https://doi.org/10.1016/j.radphyschem.2012.07.002
ASTM International. Standard practice for conducting and evaluating laboratory corrosion tests in soils). ASTM G162-99, ASTM International; West Conshohocken, PA 2010.
Anyanwu IS, Eseonu O, Nwosu HU. Experimental Investigations and Mathematical Modelling of Corrosion Growth Rate on Carbon Steel under the Influence of Soil pH and Resistivity. Iosr J Eng 2014; 4(10): 7-18. https://doi.org/10.9790/3021-041030718
ASTM D. 4959–07. Standard Test Method for Determination of Water (Moisture) Content of Soil by Direct Heating hotplate, stove, blowtorch. ASTM International: West Conshohocken, PA.–2007. URL: https://www. astm. Org/Standards D, 2007; 4959.
Estefan G, Sommer R, Ryan J. Methods of soil, plant, and water analysis. A manual for the West Asia and North Africa Region 2013; 3.
ASTM G51-95. Standard test method for measurement of pH of soil for use in corrosion testing. Annual Book of ASTM standards, American society for testing and materials 2012.
ASTM G187-05, “Standard Test Method for Measurement of Soil Resistivity Using Two-electrode Soil Box Method”, Annual Book of ASTM Standards, American Society for Testing and Materials, 2005.
Rhoades JD, Raats PAC, Prather RJ. Effects of liquid‐phase electrical conductivity, water content, and surface conductivity on bulk soil electrical conductivity. Soil Science Society of America Journal 1976; 40(5): 651-655. https://doi.org/10.2136/sssaj1976.03615995004000050017x
Caleyo F, Velázquez JC, Valor A, Hallen JM. Probability distribution of pitting corrosion depth and rate in underground pipelines: A Monte Carlo study. Corrosion Science 2009; 51(9): 1925-1934. https://doi.org/10.1016/j.corsci.2009.05.019
Velázquez JC, Caleyo F, Valor A, Hallen JM. Predictive model for pitting corrosion in buried oil and gas pipelines. Corrosion 2009; 65(5): 332-342. https://doi.org/10.5006/1.3319138
Jun J, Unocic KA, Petrova MV, Shipilov SA, Carvalhaes TM, Thakur G, Piburn JO, Pint BA. Methodologies for Evaluation of Corrosion Protection for Ductile Iron Pipe (No. ORNL/TM-2017/144). Oak Ridge National Lab.(ORNL), Oak Ridge, TN (United States) 2019.
Taheri P, Mansouri A, Bachour B, Ahuja N, Zamanzadeh M. Inspection and Mitigation of Underground Corrosion at Anchor Shafts of Telecommunication Towers. In CORROSION 2017. NACE International 2017.
Peabody NACE, A.W. Control of Pipeline Corrosion 2001.
Galai M, Hassani Y, Benqlilou H, Mansouri I, Ouaki B, Touhami ME, Monticelli C, Zucchi F. Moisture content and chloride ion effect on the corrosion behavior of fitting brass (gate valves) used as a connection of PVC's conduits in aggressive sandy soil. Chemical Data Collections 2019; 19: 100171. https://doi.org/10.1016/j.cdc.2018.11.013
Gupta SK, Gupta BK. The critical soil moisture content in the underground corrosion of mild steel. Corrosion Science 1979; 19(3): 171-178. https://doi.org/10.1016/0010-938X(79)90015-5
Tan KH. Soil sampling, preparation, and analysis. CRC press 1995.
Dahal KP, Karki RK, BhattaraI J. Evaluation of Corrosivity of Soil Collected from Central Part of Kathmandu Metropolis (Nepal) to Water Supply Metallic Pipes. Asian Journal of Chemistry 2018; 30(7).
Ulery AL, Drees R. Methods of Soil Analysis: Part 5-Mineralogical Methods. Madison, WI, USA: SSSA 2008.
ASTM G57-05. Standard test method for measurement of soil resistivity using two-electrode soil box method. Annual Book of ASTM standards, American Society for Testing and Materials 2005.
Bhattarai J. Study on the corrosive nature of soil towards the buried-structures. Scientific World 2013; 11(11): 43-47. https://doi.org/10.3126/sw.v11i11.8551
Marušić K, Kekez K, Martinez S. Comparison of soil properties measurements in pipeline corrosion estimation. Materials and Corrosion 2019; 70(9): 1700-1707. https://doi.org/10.1002/maco.201810768
Horsfall OI. Shallow Depth Soil Resistivity Investigations and Subsurface Lithology for Corrosivity Assessment along Obama-Kolo Creek Pipeline Using Geoelectric Method 2020.
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