Effect of NaNO2 and C6H15NO3 Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments
This paper studies effect of different combinations of NaNO2 (sodium nitrite) and C6H15NO3 (triethanolamine (TEA)), as synergistic admixtures in concrete immersed in NaCl and in H2SO4 test environments, on the corrosion of the concrete reinforcing steel (rebar). Although statistically analysed elect...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/540395 |
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| author | Joshua Olusegun Okeniyi Abimbola Patricia Idowu Popoola Cleophas Akintoye Loto Olugbenga Adeshola Omotosho Stanley Okechukwu Okpala Idemudia Joshua Ambrose |
| author_facet | Joshua Olusegun Okeniyi Abimbola Patricia Idowu Popoola Cleophas Akintoye Loto Olugbenga Adeshola Omotosho Stanley Okechukwu Okpala Idemudia Joshua Ambrose |
| author_sort | Joshua Olusegun Okeniyi |
| collection | DOAJ |
| description | This paper studies effect of different combinations of NaNO2 (sodium nitrite) and C6H15NO3 (triethanolamine (TEA)), as synergistic admixtures in concrete immersed in NaCl and in H2SO4 test environments, on the corrosion of the concrete reinforcing steel (rebar). Although statistically analysed electrochemical test results confirmed NaNO2 effectiveness, synergistic combinations of 4 g NaNO2 + 4 g C6H15NO3 in NaCl medium and of 2 g NaNO2 + 6 g C6H15NO3 in H2SO4 medium were also highly effective at inhibiting rebar corrosion. Synergistic parameter analyses showed that the effective synergistic admixtures that inhibited concrete steel-rebar corrosion in their respective medium were the NaNO2 and C6H15NO3 combinations that exhibited synergistic interactions of cooperative adsorption on steel-rebar. These support the suitability of requisite concentration of triethanolamine as additive admixture with sodium nitrite for steel-rebar corrosion mitigation, which is potent with reduced environmental effects, in concrete immersed in NaCl and in H2SO4 corrosive media. |
| format | Article |
| id | doaj-art-2c4b65828b0a425f81a55d30a9f0a21a |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2c4b65828b0a425f81a55d30a9f0a21a2025-02-03T05:44:00ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/540395540395Effect of NaNO2 and C6H15NO3 Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive EnvironmentsJoshua Olusegun Okeniyi0Abimbola Patricia Idowu Popoola1Cleophas Akintoye Loto2Olugbenga Adeshola Omotosho3Stanley Okechukwu Okpala4Idemudia Joshua Ambrose5Mechanical Engineering Department, Covenant University, Ota 112001, NigeriaChemical and Metallurgical Engineering Department, Tshwane University of Technology, Pretoria 0001, South AfricaMechanical Engineering Department, Covenant University, Ota 112001, NigeriaMechanical Engineering Department, Covenant University, Ota 112001, NigeriaMechanical Engineering Department, Covenant University, Ota 112001, NigeriaMechanical Engineering Department, Covenant University, Ota 112001, NigeriaThis paper studies effect of different combinations of NaNO2 (sodium nitrite) and C6H15NO3 (triethanolamine (TEA)), as synergistic admixtures in concrete immersed in NaCl and in H2SO4 test environments, on the corrosion of the concrete reinforcing steel (rebar). Although statistically analysed electrochemical test results confirmed NaNO2 effectiveness, synergistic combinations of 4 g NaNO2 + 4 g C6H15NO3 in NaCl medium and of 2 g NaNO2 + 6 g C6H15NO3 in H2SO4 medium were also highly effective at inhibiting rebar corrosion. Synergistic parameter analyses showed that the effective synergistic admixtures that inhibited concrete steel-rebar corrosion in their respective medium were the NaNO2 and C6H15NO3 combinations that exhibited synergistic interactions of cooperative adsorption on steel-rebar. These support the suitability of requisite concentration of triethanolamine as additive admixture with sodium nitrite for steel-rebar corrosion mitigation, which is potent with reduced environmental effects, in concrete immersed in NaCl and in H2SO4 corrosive media.http://dx.doi.org/10.1155/2015/540395 |
| spellingShingle | Joshua Olusegun Okeniyi Abimbola Patricia Idowu Popoola Cleophas Akintoye Loto Olugbenga Adeshola Omotosho Stanley Okechukwu Okpala Idemudia Joshua Ambrose Effect of NaNO2 and C6H15NO3 Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments Advances in Materials Science and Engineering |
| title | Effect of NaNO2 and C6H15NO3 Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments |
| title_full | Effect of NaNO2 and C6H15NO3 Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments |
| title_fullStr | Effect of NaNO2 and C6H15NO3 Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments |
| title_full_unstemmed | Effect of NaNO2 and C6H15NO3 Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments |
| title_short | Effect of NaNO2 and C6H15NO3 Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments |
| title_sort | effect of nano2 and c6h15no3 synergistic admixtures on steel rebar corrosion in concrete immersed in aggressive environments |
| url | http://dx.doi.org/10.1155/2015/540395 |
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