An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating Radar
Corrosion of steel rebar in reinforced concrete is one the most important durability issues in the service life of a structure. In this paper, an investigation is conducted to find out the relationship between the amount of reinforced concrete corrosion and GPR maximum positive amplitude. Accelerate...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Journal of Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/8536850 |
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| author | Md Istiaque Hasan Nur Yazdani |
| author_facet | Md Istiaque Hasan Nur Yazdani |
| author_sort | Md Istiaque Hasan |
| collection | DOAJ |
| description | Corrosion of steel rebar in reinforced concrete is one the most important durability issues in the service life of a structure. In this paper, an investigation is conducted to find out the relationship between the amount of reinforced concrete corrosion and GPR maximum positive amplitude. Accelerated corrosion was simulated in the lab by impressing direct current into steel rebar that was submerged in a 5% salt water solution. The amount of corrosion was varied in the rebars with different levels of mass loss ranging from 0% to 45%. The corroded rebars were then placed into three different oil emulsion tanks having different dielectric properties similar to concrete. The maximum amplitudes from the corroded bars were recorded. A linear relationship between the maximum positive amplitudes and the amount of corrosion in terms of percentage loss of area was observed. It was proposed that the relationship between the GPR maximum amplitude and the amount of corrosion can be used as a basis of a NDE technique of quantitative estimation of corrosion. |
| format | Article |
| id | doaj-art-86836b64b5c6434eae2344e37952e514 |
| institution | Kabale University |
| issn | 2314-4904 2314-4912 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj-art-86836b64b5c6434eae2344e37952e5142025-02-03T01:11:23ZengWileyJournal of Engineering2314-49042314-49122016-01-01201610.1155/2016/85368508536850An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating RadarMd Istiaque Hasan0Nur Yazdani1Department of Civil Engineering, University of Texas at Arlington, P.O. Box 19308, Arlington, TX 76019, USADepartment of Civil Engineering, University of Texas at Arlington, P.O. Box 19308, Arlington, TX 76019, USACorrosion of steel rebar in reinforced concrete is one the most important durability issues in the service life of a structure. In this paper, an investigation is conducted to find out the relationship between the amount of reinforced concrete corrosion and GPR maximum positive amplitude. Accelerated corrosion was simulated in the lab by impressing direct current into steel rebar that was submerged in a 5% salt water solution. The amount of corrosion was varied in the rebars with different levels of mass loss ranging from 0% to 45%. The corroded rebars were then placed into three different oil emulsion tanks having different dielectric properties similar to concrete. The maximum amplitudes from the corroded bars were recorded. A linear relationship between the maximum positive amplitudes and the amount of corrosion in terms of percentage loss of area was observed. It was proposed that the relationship between the GPR maximum amplitude and the amount of corrosion can be used as a basis of a NDE technique of quantitative estimation of corrosion.http://dx.doi.org/10.1155/2016/8536850 |
| spellingShingle | Md Istiaque Hasan Nur Yazdani An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating Radar Journal of Engineering |
| title | An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating Radar |
| title_full | An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating Radar |
| title_fullStr | An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating Radar |
| title_full_unstemmed | An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating Radar |
| title_short | An Experimental Study for Quantitative Estimation of Rebar Corrosion in Concrete Using Ground Penetrating Radar |
| title_sort | experimental study for quantitative estimation of rebar corrosion in concrete using ground penetrating radar |
| url | http://dx.doi.org/10.1155/2016/8536850 |
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