Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation
Dielectric constant and conductivity, the so-called EM properties (electromagnetic), are widely adopted for NDT (Nondestructive Technique) in order to detect damage or evaluate performance of concrete without damage to existing RC (reinforced concrete). Among deteriorating agents, chloride ion is co...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/6018476 |
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| author | Sunkook Kim Joowon Kang Sang-Hyo Lee Yong Han Ahn |
| author_facet | Sunkook Kim Joowon Kang Sang-Hyo Lee Yong Han Ahn |
| author_sort | Sunkook Kim |
| collection | DOAJ |
| description | Dielectric constant and conductivity, the so-called EM properties (electromagnetic), are widely adopted for NDT (Nondestructive Technique) in order to detect damage or evaluate performance of concrete without damage to existing RC (reinforced concrete). Among deteriorating agents, chloride ion is considered as one of the most critical threats due to rapid penetration and direct effect on steel corrosion. In the work, cement mortar samples with 3 w/c (water-to-cement) ratios and 4 levels of chloride addition are considered. Conductivity and dielectric constant are measured in the normal frequency range. They increase with strength of mortar and more chloride ions due to denser pore formation. Furthermore, the behaviors of measured EM property are investigated with carbonation velocity and strength, which shows an attempt of application to durability evaluation through EM measurement. |
| format | Article |
| id | doaj-art-2bf49d4de0c0480a8162258c814af334 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2bf49d4de0c0480a8162258c814af3342025-02-03T06:07:01ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/60184766018476Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability EvaluationSunkook Kim0Joowon Kang1Sang-Hyo Lee2Yong Han Ahn3Multi-Functional Nano/Bio Electronics Lab, Department of Electronics and Radio Engineering, Kyung Hee University, Gyeonggi 446-701, Republic of KoreaSchool of Architecture, Yeungnam University, 280 Daehak-ro, Gyeongbuk 712-749, Republic of KoreaDivision of Architecture and Architectural Engineering, Hanyang University-ERICA, Gyeonggi 15588, Republic of KoreaDivision of Architecture and Architectural Engineering, Hanyang University-ERICA, Gyeonggi 15588, Republic of KoreaDielectric constant and conductivity, the so-called EM properties (electromagnetic), are widely adopted for NDT (Nondestructive Technique) in order to detect damage or evaluate performance of concrete without damage to existing RC (reinforced concrete). Among deteriorating agents, chloride ion is considered as one of the most critical threats due to rapid penetration and direct effect on steel corrosion. In the work, cement mortar samples with 3 w/c (water-to-cement) ratios and 4 levels of chloride addition are considered. Conductivity and dielectric constant are measured in the normal frequency range. They increase with strength of mortar and more chloride ions due to denser pore formation. Furthermore, the behaviors of measured EM property are investigated with carbonation velocity and strength, which shows an attempt of application to durability evaluation through EM measurement.http://dx.doi.org/10.1155/2016/6018476 |
| spellingShingle | Sunkook Kim Joowon Kang Sang-Hyo Lee Yong Han Ahn Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation Advances in Materials Science and Engineering |
| title | Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation |
| title_full | Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation |
| title_fullStr | Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation |
| title_full_unstemmed | Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation |
| title_short | Effect of Chlorides on Conductivity and Dielectric Constant in Hardened Cement Mortar: NDT for Durability Evaluation |
| title_sort | effect of chlorides on conductivity and dielectric constant in hardened cement mortar ndt for durability evaluation |
| url | http://dx.doi.org/10.1155/2016/6018476 |
| work_keys_str_mv | AT sunkookkim effectofchloridesonconductivityanddielectricconstantinhardenedcementmortarndtfordurabilityevaluation AT joowonkang effectofchloridesonconductivityanddielectricconstantinhardenedcementmortarndtfordurabilityevaluation AT sanghyolee effectofchloridesonconductivityanddielectricconstantinhardenedcementmortarndtfordurabilityevaluation AT yonghanahn effectofchloridesonconductivityanddielectricconstantinhardenedcementmortarndtfordurabilityevaluation |