Multi-Sensors Geophysical Monitoring for Reinforced Concrete Engineering Structures: A Laboratory Test
Non-destructive tests are strongly required in engineering applications for monitoring civil structures. The use of compared and integrated innovative approaches based on geophysical methodologies represents an effective tool for the characterization and monitoring of reinforced concrete (RC) struct...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/16/5565 |
| _version_ | 1797522071003070464 |
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| author | Luigi Capozzoli Giacomo Fornasari Valeria Giampaolo Gregory De Martino Enzo Rizzo |
| author_facet | Luigi Capozzoli Giacomo Fornasari Valeria Giampaolo Gregory De Martino Enzo Rizzo |
| author_sort | Luigi Capozzoli |
| collection | DOAJ |
| description | Non-destructive tests are strongly required in engineering applications for monitoring civil structures. The use of compared and integrated innovative approaches based on geophysical methodologies represents an effective tool for the characterization and monitoring of reinforced concrete (RC) structures. Therefore, the main aim of the work was to improve the knowledge on the potentiality and limitations of the Ground Penetrating Radar (GPR) and the Electrical Resistivity Tomography (ERT) with electrodes disposed both on the surface and in the boreholes. The work approach was adopted on an analog model of a reinforced concrete frame built ad hoc at the Hydrogeosite Laboratory (CNR-IMAA), where simulated experiments on full-size physical models are defined. Results show the ability of an accurate use of GPR to reconstruct the rebar dispositions and detect in detail possible constructive defects, both highlighting the lack of reinforcements into the nodes and providing useful information about the safety assessment of the realized structure. The results of the ERT method defined the necessity to develop ad-hoc electrical resistivity methods to support the characterization and monitoring of buried foundation structures for civil engineering applications. Finally, the paper introduces a new approach based on the use of cross-hole ERTs (CHERTs) for the engineering structure monitoring, able to reduce the uncertainties usually affecting the indirect results. |
| first_indexed | 2024-03-10T08:23:23Z |
| format | Article |
| id | doaj.art-5835c6c4e3bc45f6855f52e40d6bba85 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T08:23:23Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-5835c6c4e3bc45f6855f52e40d6bba852023-11-22T09:41:59ZengMDPI AGSensors1424-82202021-08-012116556510.3390/s21165565Multi-Sensors Geophysical Monitoring for Reinforced Concrete Engineering Structures: A Laboratory TestLuigi Capozzoli0Giacomo Fornasari1Valeria Giampaolo2Gregory De Martino3Enzo Rizzo4Institute of Methodologies for Environmental Analysis, National Research Council, C.da S. Loja, 85050 Tito Scalo, PZ, ItalyDepartment of Physics and Earth Sciences, University of Ferrara, 44121 Ferrara, ItalyInstitute of Methodologies for Environmental Analysis, National Research Council, C.da S. Loja, 85050 Tito Scalo, PZ, ItalyInstitute of Methodologies for Environmental Analysis, National Research Council, C.da S. Loja, 85050 Tito Scalo, PZ, ItalyInstitute of Methodologies for Environmental Analysis, National Research Council, C.da S. Loja, 85050 Tito Scalo, PZ, ItalyNon-destructive tests are strongly required in engineering applications for monitoring civil structures. The use of compared and integrated innovative approaches based on geophysical methodologies represents an effective tool for the characterization and monitoring of reinforced concrete (RC) structures. Therefore, the main aim of the work was to improve the knowledge on the potentiality and limitations of the Ground Penetrating Radar (GPR) and the Electrical Resistivity Tomography (ERT) with electrodes disposed both on the surface and in the boreholes. The work approach was adopted on an analog model of a reinforced concrete frame built ad hoc at the Hydrogeosite Laboratory (CNR-IMAA), where simulated experiments on full-size physical models are defined. Results show the ability of an accurate use of GPR to reconstruct the rebar dispositions and detect in detail possible constructive defects, both highlighting the lack of reinforcements into the nodes and providing useful information about the safety assessment of the realized structure. The results of the ERT method defined the necessity to develop ad-hoc electrical resistivity methods to support the characterization and monitoring of buried foundation structures for civil engineering applications. Finally, the paper introduces a new approach based on the use of cross-hole ERTs (CHERTs) for the engineering structure monitoring, able to reduce the uncertainties usually affecting the indirect results.https://www.mdpi.com/1424-8220/21/16/5565GPRERTreinforced concrete structurelaboratory testNDTborehole |
| spellingShingle | Luigi Capozzoli Giacomo Fornasari Valeria Giampaolo Gregory De Martino Enzo Rizzo Multi-Sensors Geophysical Monitoring for Reinforced Concrete Engineering Structures: A Laboratory Test Sensors GPR ERT reinforced concrete structure laboratory test NDT borehole |
| title | Multi-Sensors Geophysical Monitoring for Reinforced Concrete Engineering Structures: A Laboratory Test |
| title_full | Multi-Sensors Geophysical Monitoring for Reinforced Concrete Engineering Structures: A Laboratory Test |
| title_fullStr | Multi-Sensors Geophysical Monitoring for Reinforced Concrete Engineering Structures: A Laboratory Test |
| title_full_unstemmed | Multi-Sensors Geophysical Monitoring for Reinforced Concrete Engineering Structures: A Laboratory Test |
| title_short | Multi-Sensors Geophysical Monitoring for Reinforced Concrete Engineering Structures: A Laboratory Test |
| title_sort | multi sensors geophysical monitoring for reinforced concrete engineering structures a laboratory test |
| topic | GPR ERT reinforced concrete structure laboratory test NDT borehole |
| url | https://www.mdpi.com/1424-8220/21/16/5565 |
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