Non-destructive evaluation of corrosion activity in reinforced concrete slab
Nondestructive evaluation of corrosion of steel reinforcement in concrete due to ingress of chloride ions is intensively studied in a laboratory. Acoustic emission (AE) is used directly to estimate corrosion activity. Half-cell potential, polarization resistance and concrete resistivity are applied...
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| Format: | Conference or Workshop Item |
| Published: |
2008
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| Online Access: | http://eprints.utm.my/8479/ |
| _version_ | 1848891696400564224 |
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| author | Ismail, Mohammad |
| author_facet | Ismail, Mohammad |
| author_sort | Ismail, Mohammad |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Nondestructive evaluation of corrosion of steel reinforcement in concrete due to ingress of chloride ions is intensively studied in a laboratory. Acoustic emission (AE) is used directly to estimate corrosion activity. Half-cell potential, polarization resistance and concrete resistivity are applied to evaluate corroded areas, compensating the potentials by the inverse boundary element method (IBEM). Embedded sensors attached to rebars are also employed to measure half-cell potential, polarization resistance and concrete resistivity in concrete. Results show that AE events are effectively associated with corrosion activity. It is noticed that no other techniques have managed to give an earlier warning of corrosion than AE technique. Half cell potential could locate the corroded areas in the concrete slab, while concrete resistivity and polarization resistance underestimate them. Embedded sensors are confirmed to be a promising tool for real-time monitoring for both corrosion activity and corrosion areas in reinforced concrete. |
| first_indexed | 2025-11-15T21:02:04Z |
| format | Conference or Workshop Item |
| id | utm-8479 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T21:02:04Z |
| publishDate | 2008 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-84792020-03-04T01:31:11Z http://eprints.utm.my/8479/ Non-destructive evaluation of corrosion activity in reinforced concrete slab Ismail, Mohammad TA Engineering (General). Civil engineering (General) Nondestructive evaluation of corrosion of steel reinforcement in concrete due to ingress of chloride ions is intensively studied in a laboratory. Acoustic emission (AE) is used directly to estimate corrosion activity. Half-cell potential, polarization resistance and concrete resistivity are applied to evaluate corroded areas, compensating the potentials by the inverse boundary element method (IBEM). Embedded sensors attached to rebars are also employed to measure half-cell potential, polarization resistance and concrete resistivity in concrete. Results show that AE events are effectively associated with corrosion activity. It is noticed that no other techniques have managed to give an earlier warning of corrosion than AE technique. Half cell potential could locate the corroded areas in the concrete slab, while concrete resistivity and polarization resistance underestimate them. Embedded sensors are confirmed to be a promising tool for real-time monitoring for both corrosion activity and corrosion areas in reinforced concrete. 2008 Conference or Workshop Item PeerReviewed Ismail, Mohammad (2008) Non-destructive evaluation of corrosion activity in reinforced concrete slab. In: Proceedings of the 4th International Structural Engineering and Construction Conference (ISEC-4). (In Press) http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:127379 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Ismail, Mohammad Non-destructive evaluation of corrosion activity in reinforced concrete slab |
| title | Non-destructive evaluation of corrosion activity in reinforced concrete slab |
| title_full | Non-destructive evaluation of corrosion activity in reinforced concrete slab |
| title_fullStr | Non-destructive evaluation of corrosion activity in reinforced concrete slab |
| title_full_unstemmed | Non-destructive evaluation of corrosion activity in reinforced concrete slab |
| title_short | Non-destructive evaluation of corrosion activity in reinforced concrete slab |
| title_sort | non-destructive evaluation of corrosion activity in reinforced concrete slab |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.utm.my/8479/ http://eprints.utm.my/8479/ |