The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media
To mitigate autogenous shrinkage in cementitious materials and simultaneously preserve the material’s mechanical performance, superabsorbent polymers and nanosilica are included in the mixture design. The use of the specific additives influences both the hydration process and the hardened microstruc...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-05-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/20/10/2959 |
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| author | Gerlinde Lefever Didier Snoeck Nele De Belie Sandra Van Vlierberghe Danny Van Hemelrijck Dimitrios G. Aggelis |
| author_facet | Gerlinde Lefever Didier Snoeck Nele De Belie Sandra Van Vlierberghe Danny Van Hemelrijck Dimitrios G. Aggelis |
| author_sort | Gerlinde Lefever |
| collection | DOAJ |
| description | To mitigate autogenous shrinkage in cementitious materials and simultaneously preserve the material’s mechanical performance, superabsorbent polymers and nanosilica are included in the mixture design. The use of the specific additives influences both the hydration process and the hardened microstructure, while autogenous healing of cracks can be stimulated. These three stages are monitored by means of non-destructive testing, showing the sensitivity of elastic waves to the occurring phenomena. Whereas the action of the superabsorbent polymers was evidenced by acoustic emission, the use of ultrasound revealed the differences in the developed microstructure and the self-healing of cracks by a comparison with more commonly performed mechanical tests. The ability of NDT to determine these various features renders it a promising measuring method for future characterization of innovative cementitious materials. |
| first_indexed | 2024-03-10T19:39:04Z |
| format | Article |
| id | doaj.art-d98669d5947342a68628ccbc4e8c7d8b |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T19:39:04Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d98669d5947342a68628ccbc4e8c7d8b2023-11-20T01:29:47ZengMDPI AGSensors1424-82202020-05-012010295910.3390/s20102959The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious MediaGerlinde Lefever0Didier Snoeck1Nele De Belie2Sandra Van Vlierberghe3Danny Van Hemelrijck4Dimitrios G. Aggelis5Department Mechanics of Materials and Constructions, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, BelgiumDepartment Mechanics of Materials and Constructions, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, BelgiumMagnel-Vandepitte Laboratory for Structural Engineering and Building Materials, Department of Structural Engineering and Building Materials, Faculty of Engineering and Architecture, Ghent University, Tech Lane Ghent Science Park, Technologiepark Zwijnaarde 60, 9052 Ghent, BelgiumPolymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4-Bis, 9000 Ghent, BelgiumDepartment Mechanics of Materials and Constructions, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, BelgiumDepartment Mechanics of Materials and Constructions, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, BelgiumTo mitigate autogenous shrinkage in cementitious materials and simultaneously preserve the material’s mechanical performance, superabsorbent polymers and nanosilica are included in the mixture design. The use of the specific additives influences both the hydration process and the hardened microstructure, while autogenous healing of cracks can be stimulated. These three stages are monitored by means of non-destructive testing, showing the sensitivity of elastic waves to the occurring phenomena. Whereas the action of the superabsorbent polymers was evidenced by acoustic emission, the use of ultrasound revealed the differences in the developed microstructure and the self-healing of cracks by a comparison with more commonly performed mechanical tests. The ability of NDT to determine these various features renders it a promising measuring method for future characterization of innovative cementitious materials.https://www.mdpi.com/1424-8220/20/10/2959acoustic emissionultrasoundhydrogelnanosilica |
| spellingShingle | Gerlinde Lefever Didier Snoeck Nele De Belie Sandra Van Vlierberghe Danny Van Hemelrijck Dimitrios G. Aggelis The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media Sensors acoustic emission ultrasound hydrogel nanosilica |
| title | The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media |
| title_full | The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media |
| title_fullStr | The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media |
| title_full_unstemmed | The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media |
| title_short | The Contribution of Elastic Wave NDT to the Characterization of Modern Cementitious Media |
| title_sort | contribution of elastic wave ndt to the characterization of modern cementitious media |
| topic | acoustic emission ultrasound hydrogel nanosilica |
| url | https://www.mdpi.com/1424-8220/20/10/2959 |
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