Terahertz non-destructive imaging of cracks and cracking in structures of cement-based materials
Cracks and crack propagation in cement-based materials are key factors leading to failure of structures, affecting safety in construction engineering. This work investigated the application of terahertz (THz) non-destructive imaging to inspections on structures of cement-based materials, so as to ex...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2017-11-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4996053 |
| _version_ | 1819149155042328576 |
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| author | Shujie Fan Tongchun Li Jun Zhou Xiaoqing Liu Xiaoming Liu Huijun Qi Zhiyong Mu |
| author_facet | Shujie Fan Tongchun Li Jun Zhou Xiaoqing Liu Xiaoming Liu Huijun Qi Zhiyong Mu |
| author_sort | Shujie Fan |
| collection | DOAJ |
| description | Cracks and crack propagation in cement-based materials are key factors leading to failure of structures, affecting safety in construction engineering. This work investigated the application of terahertz (THz) non-destructive imaging to inspections on structures of cement-based materials, so as to explore the potential of THz imaging in crack detection. Two kinds of disk specimens made of plain cement mortar and UHMWPE fiber concrete were prepared respectively. A mechanical expansion load device was deployed to generate cracks and control the whole process of cracking. Experimental tests were carried out on cracked specimens by using a commercial THz time domain spectroscopy (THz-TDS) during loading. The results show that crack opening and propagation could be examined by THz clearly and the material factors influence the ability of crack resistance significantly. It was found that the THz imaging of crack initiation and propagation agrees with the practical phenomenon and supplies more information about damage of samples. It is demonstrated that the damage behavior of structures of cement-based materials can be successfully detected by THz imaging. |
| first_indexed | 2024-12-22T13:57:06Z |
| format | Article |
| id | doaj.art-c8287fa5475e4ed7ab5f5ae628ffbed0 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-22T13:57:06Z |
| publishDate | 2017-11-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-c8287fa5475e4ed7ab5f5ae628ffbed02022-12-21T18:23:32ZengAIP Publishing LLCAIP Advances2158-32262017-11-01711115202115202-1010.1063/1.4996053095710ADVTerahertz non-destructive imaging of cracks and cracking in structures of cement-based materialsShujie Fan0Tongchun Li1Jun Zhou2Xiaoqing Liu3Xiaoming Liu4Huijun Qi5Zhiyong Mu6College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaSchool of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaCollege of Physics and Electronic Information, Anhui Normal University, Wuhu, Anhui Province 241002, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaCollege of Water Conservancy and Hydropower Engineering, Hebei University of Engineering, Handan 056000, ChinaCracks and crack propagation in cement-based materials are key factors leading to failure of structures, affecting safety in construction engineering. This work investigated the application of terahertz (THz) non-destructive imaging to inspections on structures of cement-based materials, so as to explore the potential of THz imaging in crack detection. Two kinds of disk specimens made of plain cement mortar and UHMWPE fiber concrete were prepared respectively. A mechanical expansion load device was deployed to generate cracks and control the whole process of cracking. Experimental tests were carried out on cracked specimens by using a commercial THz time domain spectroscopy (THz-TDS) during loading. The results show that crack opening and propagation could be examined by THz clearly and the material factors influence the ability of crack resistance significantly. It was found that the THz imaging of crack initiation and propagation agrees with the practical phenomenon and supplies more information about damage of samples. It is demonstrated that the damage behavior of structures of cement-based materials can be successfully detected by THz imaging.http://dx.doi.org/10.1063/1.4996053 |
| spellingShingle | Shujie Fan Tongchun Li Jun Zhou Xiaoqing Liu Xiaoming Liu Huijun Qi Zhiyong Mu Terahertz non-destructive imaging of cracks and cracking in structures of cement-based materials AIP Advances |
| title | Terahertz non-destructive imaging of cracks and cracking in structures of cement-based materials |
| title_full | Terahertz non-destructive imaging of cracks and cracking in structures of cement-based materials |
| title_fullStr | Terahertz non-destructive imaging of cracks and cracking in structures of cement-based materials |
| title_full_unstemmed | Terahertz non-destructive imaging of cracks and cracking in structures of cement-based materials |
| title_short | Terahertz non-destructive imaging of cracks and cracking in structures of cement-based materials |
| title_sort | terahertz non destructive imaging of cracks and cracking in structures of cement based materials |
| url | http://dx.doi.org/10.1063/1.4996053 |
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