The present study was focused to estimate six characteristics of soil specimens taken from 0.3 to 1.5 m sampling depth of six sampling sites of Budhanilkantha-Maharajganj roadsides using standard methods, and was assessed their corrosive nature to the buried-metallic pipelines using an empirical corrosion rating model. The estimated soil pH, moisture, resistivity, redox potential (ORP), chloride and sulfate ions were 6.4-7.9, 7-45%, 4.5 × 103-45.5 × 103 Ohm. cm, 317-514 mV (SHE), 12-86 ppm, and 40-294 ppm, respectively, in all the soil sample specimens. The experimental results indicated that the soils could be rated as mildly corrosive to less corrosive groups to the buried galvanized-steel and cast iron pipes in the study areas. A good positive or negative correlation coefficient between resistivity, moisture, chloride and sulfate contents implies that these soil parameters have an equal contribution to the rating of soil corrosivity. A polyethylene-sheet wrapping (i.e., encasement) around the galvanized-steel and cast iron water pipelines or the use of non-conducting materials of gravel/sand around the burying ground could be sufficient for the extension of their life up to 50 years or more. The empirical model is successfully applied for the corrosion rating of soil samples and could be progressive in the future for soil corrosion rating of soils to the underground waterworks. Present findings would be insightful and suggestive in making the corrosive land maps of the studied areas which would be helpful for the potable water pipeline works in other urban areas of Nepal.
| Published in | World Journal of Applied Chemistry (Volume 5, Issue 3) |
| DOI | 10.11648/j.wjac.20200503.12 |
| Page(s) | 47-56 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2020. Published by Science Publishing Group |
Buried-pipelines, Empirical Model, Salt Ions, Soil Resistivity, Sub-corrosive Group, Water Amount
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APA Style
Abiral Poudel, Kumar Prasad Dahal, Dinesh K. C., Jagadeesh Bhattarai. (2020). A Classification Approach for Corrosion Rating of Soil to Buried Water Pipelines: A Case Study in Budhanilkantha-Maharajganj Roadway Areas of Nepal. World Journal of Applied Chemistry, 5(3), 47-56. https://doi.org/10.11648/j.wjac.20200503.12
ACS Style
Abiral Poudel; Kumar Prasad Dahal; Dinesh K. C.; Jagadeesh Bhattarai. A Classification Approach for Corrosion Rating of Soil to Buried Water Pipelines: A Case Study in Budhanilkantha-Maharajganj Roadway Areas of Nepal. World J. Appl. Chem. 2020, 5(3), 47-56. doi: 10.11648/j.wjac.20200503.12
AMA Style
Abiral Poudel, Kumar Prasad Dahal, Dinesh K. C., Jagadeesh Bhattarai. A Classification Approach for Corrosion Rating of Soil to Buried Water Pipelines: A Case Study in Budhanilkantha-Maharajganj Roadway Areas of Nepal. World J Appl Chem. 2020;5(3):47-56. doi: 10.11648/j.wjac.20200503.12
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Download@article{10.11648/j.wjac.20200503.12,
author = {Abiral Poudel and Kumar Prasad Dahal and Dinesh K. C. and Jagadeesh Bhattarai},
title = {A Classification Approach for Corrosion Rating of Soil to Buried Water Pipelines: A Case Study in Budhanilkantha-Maharajganj Roadway Areas of Nepal},
journal = {World Journal of Applied Chemistry},
volume = {5},
number = {3},
pages = {47-56},
doi = {10.11648/j.wjac.20200503.12},
url = {https://doi.org/10.11648/j.wjac.20200503.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjac.20200503.12},
abstract = {The present study was focused to estimate six characteristics of soil specimens taken from 0.3 to 1.5 m sampling depth of six sampling sites of Budhanilkantha-Maharajganj roadsides using standard methods, and was assessed their corrosive nature to the buried-metallic pipelines using an empirical corrosion rating model. The estimated soil pH, moisture, resistivity, redox potential (ORP), chloride and sulfate ions were 6.4-7.9, 7-45%, 4.5 × 103-45.5 × 103 Ohm. cm, 317-514 mV (SHE), 12-86 ppm, and 40-294 ppm, respectively, in all the soil sample specimens. The experimental results indicated that the soils could be rated as mildly corrosive to less corrosive groups to the buried galvanized-steel and cast iron pipes in the study areas. A good positive or negative correlation coefficient between resistivity, moisture, chloride and sulfate contents implies that these soil parameters have an equal contribution to the rating of soil corrosivity. A polyethylene-sheet wrapping (i.e., encasement) around the galvanized-steel and cast iron water pipelines or the use of non-conducting materials of gravel/sand around the burying ground could be sufficient for the extension of their life up to 50 years or more. The empirical model is successfully applied for the corrosion rating of soil samples and could be progressive in the future for soil corrosion rating of soils to the underground waterworks. Present findings would be insightful and suggestive in making the corrosive land maps of the studied areas which would be helpful for the potable water pipeline works in other urban areas of Nepal.},
year = {2020}
}
TY - JOUR T1 - A Classification Approach for Corrosion Rating of Soil to Buried Water Pipelines: A Case Study in Budhanilkantha-Maharajganj Roadway Areas of Nepal AU - Abiral Poudel AU - Kumar Prasad Dahal AU - Dinesh K. C. AU - Jagadeesh Bhattarai Y1 - 2020/10/22 PY - 2020 N1 - https://doi.org/10.11648/j.wjac.20200503.12 DO - 10.11648/j.wjac.20200503.12 T2 - World Journal of Applied Chemistry JF - World Journal of Applied Chemistry JO - World Journal of Applied Chemistry SP - 47 EP - 56 PB - Science Publishing Group SN - 2637-5982 UR - https://doi.org/10.11648/j.wjac.20200503.12 AB - The present study was focused to estimate six characteristics of soil specimens taken from 0.3 to 1.5 m sampling depth of six sampling sites of Budhanilkantha-Maharajganj roadsides using standard methods, and was assessed their corrosive nature to the buried-metallic pipelines using an empirical corrosion rating model. The estimated soil pH, moisture, resistivity, redox potential (ORP), chloride and sulfate ions were 6.4-7.9, 7-45%, 4.5 × 103-45.5 × 103 Ohm. cm, 317-514 mV (SHE), 12-86 ppm, and 40-294 ppm, respectively, in all the soil sample specimens. The experimental results indicated that the soils could be rated as mildly corrosive to less corrosive groups to the buried galvanized-steel and cast iron pipes in the study areas. A good positive or negative correlation coefficient between resistivity, moisture, chloride and sulfate contents implies that these soil parameters have an equal contribution to the rating of soil corrosivity. A polyethylene-sheet wrapping (i.e., encasement) around the galvanized-steel and cast iron water pipelines or the use of non-conducting materials of gravel/sand around the burying ground could be sufficient for the extension of their life up to 50 years or more. The empirical model is successfully applied for the corrosion rating of soil samples and could be progressive in the future for soil corrosion rating of soils to the underground waterworks. Present findings would be insightful and suggestive in making the corrosive land maps of the studied areas which would be helpful for the potable water pipeline works in other urban areas of Nepal. VL - 5 IS - 3 ER -
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