Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures
Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the res...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Ouglova, A. [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2005 |
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| Schlagwörter: |
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| Anmerkung: |
© RILEM 2004 |
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| Übergeordnetes Werk: |
Enthalten in: Materials and structures - Kluwer Academic Publishers, 1985, 38(2005), 7 vom: Aug., Seite 711-719 |
|---|---|
| Übergeordnetes Werk: |
volume:38 ; year:2005 ; number:7 ; month:08 ; pages:711-719 |
| Links: |
|---|
| DOI / URN: |
10.1007/BF02484316 |
|---|
| Katalog-ID: |
OLC2086909152 |
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| 520 | |a Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. | ||
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10.1007/BF02484316 doi (DE-627)OLC2086909152 (DE-He213)BF02484316-p DE-627 ger DE-627 rakwb eng 690 VZ Ouglova, A. verfasserin aut Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © RILEM 2004 Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. Concrete Structure Potential Distribution Concrete Cover Concrete Surface Concrete Column Raharinaivo, A. aut Berthaud, Y. aut Petre-Lazar, I. aut Boukhenfouf, H. aut Enthalten in Materials and structures Kluwer Academic Publishers, 1985 38(2005), 7 vom: Aug., Seite 711-719 (DE-627)12938240X (DE-600)165630-2 (DE-576)014768240 1359-5997 nnns volume:38 year:2005 number:7 month:08 pages:711-719 https://doi.org/10.1007/BF02484316 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_23 GBV_ILN_63 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_2057 GBV_ILN_4046 GBV_ILN_4316 GBV_ILN_4700 AR 38 2005 7 08 711-719 |
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10.1007/BF02484316 doi (DE-627)OLC2086909152 (DE-He213)BF02484316-p DE-627 ger DE-627 rakwb eng 690 VZ Ouglova, A. verfasserin aut Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © RILEM 2004 Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. Concrete Structure Potential Distribution Concrete Cover Concrete Surface Concrete Column Raharinaivo, A. aut Berthaud, Y. aut Petre-Lazar, I. aut Boukhenfouf, H. aut Enthalten in Materials and structures Kluwer Academic Publishers, 1985 38(2005), 7 vom: Aug., Seite 711-719 (DE-627)12938240X (DE-600)165630-2 (DE-576)014768240 1359-5997 nnns volume:38 year:2005 number:7 month:08 pages:711-719 https://doi.org/10.1007/BF02484316 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_23 GBV_ILN_63 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_2057 GBV_ILN_4046 GBV_ILN_4316 GBV_ILN_4700 AR 38 2005 7 08 711-719 |
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10.1007/BF02484316 doi (DE-627)OLC2086909152 (DE-He213)BF02484316-p DE-627 ger DE-627 rakwb eng 690 VZ Ouglova, A. verfasserin aut Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © RILEM 2004 Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. Concrete Structure Potential Distribution Concrete Cover Concrete Surface Concrete Column Raharinaivo, A. aut Berthaud, Y. aut Petre-Lazar, I. aut Boukhenfouf, H. aut Enthalten in Materials and structures Kluwer Academic Publishers, 1985 38(2005), 7 vom: Aug., Seite 711-719 (DE-627)12938240X (DE-600)165630-2 (DE-576)014768240 1359-5997 nnns volume:38 year:2005 number:7 month:08 pages:711-719 https://doi.org/10.1007/BF02484316 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_23 GBV_ILN_63 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_2057 GBV_ILN_4046 GBV_ILN_4316 GBV_ILN_4700 AR 38 2005 7 08 711-719 |
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10.1007/BF02484316 doi (DE-627)OLC2086909152 (DE-He213)BF02484316-p DE-627 ger DE-627 rakwb eng 690 VZ Ouglova, A. verfasserin aut Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © RILEM 2004 Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. Concrete Structure Potential Distribution Concrete Cover Concrete Surface Concrete Column Raharinaivo, A. aut Berthaud, Y. aut Petre-Lazar, I. aut Boukhenfouf, H. aut Enthalten in Materials and structures Kluwer Academic Publishers, 1985 38(2005), 7 vom: Aug., Seite 711-719 (DE-627)12938240X (DE-600)165630-2 (DE-576)014768240 1359-5997 nnns volume:38 year:2005 number:7 month:08 pages:711-719 https://doi.org/10.1007/BF02484316 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_23 GBV_ILN_63 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_2057 GBV_ILN_4046 GBV_ILN_4316 GBV_ILN_4700 AR 38 2005 7 08 711-719 |
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10.1007/BF02484316 doi (DE-627)OLC2086909152 (DE-He213)BF02484316-p DE-627 ger DE-627 rakwb eng 690 VZ Ouglova, A. verfasserin aut Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures 2005 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © RILEM 2004 Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. Concrete Structure Potential Distribution Concrete Cover Concrete Surface Concrete Column Raharinaivo, A. aut Berthaud, Y. aut Petre-Lazar, I. aut Boukhenfouf, H. aut Enthalten in Materials and structures Kluwer Academic Publishers, 1985 38(2005), 7 vom: Aug., Seite 711-719 (DE-627)12938240X (DE-600)165630-2 (DE-576)014768240 1359-5997 nnns volume:38 year:2005 number:7 month:08 pages:711-719 https://doi.org/10.1007/BF02484316 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-ARC SSG-OLC-TEC GBV_ILN_23 GBV_ILN_63 GBV_ILN_70 GBV_ILN_2006 GBV_ILN_2016 GBV_ILN_2057 GBV_ILN_4046 GBV_ILN_4316 GBV_ILN_4700 AR 38 2005 7 08 711-719 |
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690 VZ Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures Concrete Structure Potential Distribution Concrete Cover Concrete Surface Concrete Column |
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Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures |
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Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures |
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Ouglova, A. |
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Materials and structures |
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Materials and structures |
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600 - Technology |
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2005 |
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Ouglova, A. Raharinaivo, A. Berthaud, Y. Petre-Lazar, I. Boukhenfouf, H. |
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10.1007/BF02484316 |
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690 |
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numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures |
| title_auth |
Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures |
| abstract |
Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. © RILEM 2004 |
| abstractGer |
Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. © RILEM 2004 |
| abstract_unstemmed |
Abstract Corrosion of the reinforcement is one of the causes of reducing service-life of concrete structures. The methodologies used for making a decision on the repair or the replacement of damaged elements require in situ measurements for locating corroding areas. This paper is focussed on the results of the application of half-cell potential mapping for locating corroding areas on reinforced concrete pipeline and on six concrete columns. For reinforced concrete pipelines the validity of the half-cell potential measurements was confirmed by using finite-element calculations based on the distribution of the electrical field in soil. For the reinforced concrete columns, it was observed that the value of the half-cell potential can be inaccurate for locating corroding zones, when steel-concrete interface is cracked or when concrete cover is delaminated due to the expansion of corrosion products. This means that highly corroding areas are not always detected by this method. The occurrence of cracking and delamination in reinforced concrete structures was also studied by using a finite-element approach. It is shown that the absolute values of potential of steel in concrete depend on the delamination of concrete cover. So, the value of half cell potential should not be used as an indicator of corrosion. On the contrary, the potential gradient is a good indicator for locating corroding reinforcement in crack-free concrete surface. Some additional finite-element calculations were carried out to study the influence of concrete conductivity, cover thickness and delamination size on the size of concrete surface influenced by corrosion. So, this size increases with concrete cover thickness. © RILEM 2004 |
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Numerical simulation of potential distribution due to the corrosion of reinforcement in concrete structures |
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