Detection of Cracks in Concrete Structure Using Microwave Imaging Technique

Cracks in concrete or cement based materials present a great threat to any civil structures; they are very dangerous and have caused a lot of destruction and damage. Even small cracks that look insignificant can growandmay eventually lead to severe structural failure. Besides manual inspection tha...

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Main Authors: Jiya, E. A., Anwar, N. S. N., Abdullah, M. Z.
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2016
Subjects:
Online Access:http://eprints.usm.my/38637/
http://eprints.usm.my/38637/1/Detection_of_Cracks_in_Concrete_Structure_Using.pdf
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author Jiya, E. A.
Anwar, N. S. N.
Abdullah, M. Z.
author_facet Jiya, E. A.
Anwar, N. S. N.
Abdullah, M. Z.
author_sort Jiya, E. A.
building USM Institutional Repository
collection Online Access
description Cracks in concrete or cement based materials present a great threat to any civil structures; they are very dangerous and have caused a lot of destruction and damage. Even small cracks that look insignificant can growandmay eventually lead to severe structural failure. Besides manual inspection that is ineffective and time-consuming, several nondestructive evaluation techniques have been used for crack detection such as ultrasonic technique, vibration technique, and strain-based technique; however, some of the sensors used are either too large in size or limited in resolution. A high resolution microwave imaging technique with ultrawideband signal for crack detection in concrete structures is proposed. A combination of the delay-and-sum beamformer with full-view mounted antennas constitutes the image reconstruction algorithm. Various anomaly scenarios in cement bricks were simulated using FDTD, constructed, andmeasured in the lab. The reconstructed images showed a high similarity between the simulation and the experiment with a resolution of
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institution Universiti Sains Malaysia
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language English
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publishDate 2016
publisher Hindawi Publishing Corporation
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spelling usm-386372018-02-01T06:59:38Z http://eprints.usm.my/38637/ Detection of Cracks in Concrete Structure Using Microwave Imaging Technique Jiya, E. A. Anwar, N. S. N. Abdullah, M. Z. TK1-9971 Electrical engineering. Electronics. Nuclear engineering Cracks in concrete or cement based materials present a great threat to any civil structures; they are very dangerous and have caused a lot of destruction and damage. Even small cracks that look insignificant can growandmay eventually lead to severe structural failure. Besides manual inspection that is ineffective and time-consuming, several nondestructive evaluation techniques have been used for crack detection such as ultrasonic technique, vibration technique, and strain-based technique; however, some of the sensors used are either too large in size or limited in resolution. A high resolution microwave imaging technique with ultrawideband signal for crack detection in concrete structures is proposed. A combination of the delay-and-sum beamformer with full-view mounted antennas constitutes the image reconstruction algorithm. Various anomaly scenarios in cement bricks were simulated using FDTD, constructed, andmeasured in the lab. The reconstructed images showed a high similarity between the simulation and the experiment with a resolution of Hindawi Publishing Corporation 2016 Article PeerReviewed application/pdf en http://eprints.usm.my/38637/1/Detection_of_Cracks_in_Concrete_Structure_Using.pdf Jiya, E. A. and Anwar, N. S. N. and Abdullah, M. Z. (2016) Detection of Cracks in Concrete Structure Using Microwave Imaging Technique. International Journal of Microwave Science and Technology, 2016 (319571). pp. 1-6. ISSN 1687-5826 http://dx.doi.org/10.1155/2016/3195716
spellingShingle TK1-9971 Electrical engineering. Electronics. Nuclear engineering
Jiya, E. A.
Anwar, N. S. N.
Abdullah, M. Z.
Detection of Cracks in Concrete Structure Using Microwave Imaging Technique
title Detection of Cracks in Concrete Structure Using Microwave Imaging Technique
title_full Detection of Cracks in Concrete Structure Using Microwave Imaging Technique
title_fullStr Detection of Cracks in Concrete Structure Using Microwave Imaging Technique
title_full_unstemmed Detection of Cracks in Concrete Structure Using Microwave Imaging Technique
title_short Detection of Cracks in Concrete Structure Using Microwave Imaging Technique
title_sort detection of cracks in concrete structure using microwave imaging technique
topic TK1-9971 Electrical engineering. Electronics. Nuclear engineering
url http://eprints.usm.my/38637/
http://eprints.usm.my/38637/
http://eprints.usm.my/38637/1/Detection_of_Cracks_in_Concrete_Structure_Using.pdf