Acoustic Emission Analysis of the Cracking Behavior in ECC-LWSCC Composites
Acoustic emission (AE) analysis was utilized to assess the cracking behavior of six lightweight self-consolidating concrete (LWSCC)–engineering cementitious composite (ECC) beams under flexural loading. Two control beams were fully cast with ECC containing either polyvinyl alcohol (PVA) fibers or st...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/15/2/594 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832589243733508096 |
|---|---|
| author | Yara Zaki Ahmed Abouhussien Assem Hassan |
| author_facet | Yara Zaki Ahmed Abouhussien Assem Hassan |
| author_sort | Yara Zaki |
| collection | DOAJ |
| description | Acoustic emission (AE) analysis was utilized to assess the cracking behavior of six lightweight self-consolidating concrete (LWSCC)–engineering cementitious composite (ECC) beams under flexural loading. Two control beams were fully cast with ECC containing either polyvinyl alcohol (PVA) fibers or steel fibers (SF). The remaining four beams were ECC-LWSCC composite beams, with the ECC layer containing PVA fibers or SF placed on either the tension or compression side. The results showed that the control beams had the highest ultimate load capacity, followed by beams repaired in tension, and then beams repaired in compression. PVA fibers exhibited higher performance compared to steel fibers at the first crack load, while steel fibers enhanced the beam’s performance at the ultimate load stage. During the flexural testing, AE parameters such as the number of hits, signal amplitude, and cumulative signal strength (CSS) were collected until failure. The analysis of these AE parameters was effective in detecting the first crack and evaluating cracking propagation in all beams. Changing the type of fibers (PVA and SF) in the ECC layer showed a significant effect on AE parameters. Moreover, adding a new ECC layer to an existing LWSCC layer resulted in variations in the signal amplitude. Finally, the flexural failure mode was confirmed with the aid of the rise time/maximum amplitude vs. average frequency analysis. |
| format | Article |
| id | doaj-art-26fe5b7d16ad4d8cb56e88e829e8e670 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-26fe5b7d16ad4d8cb56e88e829e8e6702025-01-24T13:19:57ZengMDPI AGApplied Sciences2076-34172025-01-0115259410.3390/app15020594Acoustic Emission Analysis of the Cracking Behavior in ECC-LWSCC CompositesYara Zaki0Ahmed Abouhussien1Assem Hassan2Department of Civil Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NL A1B 3X5, CanadaKinectrics, 393 University Ave, Toronto ON M5G 1E6, CanadaDepartment of Civil Engineering, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NL A1B 3X5, CanadaAcoustic emission (AE) analysis was utilized to assess the cracking behavior of six lightweight self-consolidating concrete (LWSCC)–engineering cementitious composite (ECC) beams under flexural loading. Two control beams were fully cast with ECC containing either polyvinyl alcohol (PVA) fibers or steel fibers (SF). The remaining four beams were ECC-LWSCC composite beams, with the ECC layer containing PVA fibers or SF placed on either the tension or compression side. The results showed that the control beams had the highest ultimate load capacity, followed by beams repaired in tension, and then beams repaired in compression. PVA fibers exhibited higher performance compared to steel fibers at the first crack load, while steel fibers enhanced the beam’s performance at the ultimate load stage. During the flexural testing, AE parameters such as the number of hits, signal amplitude, and cumulative signal strength (CSS) were collected until failure. The analysis of these AE parameters was effective in detecting the first crack and evaluating cracking propagation in all beams. Changing the type of fibers (PVA and SF) in the ECC layer showed a significant effect on AE parameters. Moreover, adding a new ECC layer to an existing LWSCC layer resulted in variations in the signal amplitude. Finally, the flexural failure mode was confirmed with the aid of the rise time/maximum amplitude vs. average frequency analysis.https://www.mdpi.com/2076-3417/15/2/594acoustic emission analysisECC-LWSCC composite beamsfirst crack detectiondamage quantificationfailure modes |
| spellingShingle | Yara Zaki Ahmed Abouhussien Assem Hassan Acoustic Emission Analysis of the Cracking Behavior in ECC-LWSCC Composites Applied Sciences acoustic emission analysis ECC-LWSCC composite beams first crack detection damage quantification failure modes |
| title | Acoustic Emission Analysis of the Cracking Behavior in ECC-LWSCC Composites |
| title_full | Acoustic Emission Analysis of the Cracking Behavior in ECC-LWSCC Composites |
| title_fullStr | Acoustic Emission Analysis of the Cracking Behavior in ECC-LWSCC Composites |
| title_full_unstemmed | Acoustic Emission Analysis of the Cracking Behavior in ECC-LWSCC Composites |
| title_short | Acoustic Emission Analysis of the Cracking Behavior in ECC-LWSCC Composites |
| title_sort | acoustic emission analysis of the cracking behavior in ecc lwscc composites |
| topic | acoustic emission analysis ECC-LWSCC composite beams first crack detection damage quantification failure modes |
| url | https://www.mdpi.com/2076-3417/15/2/594 |
| work_keys_str_mv | AT yarazaki acousticemissionanalysisofthecrackingbehaviorinecclwscccomposites AT ahmedabouhussien acousticemissionanalysisofthecrackingbehaviorinecclwscccomposites AT assemhassan acousticemissionanalysisofthecrackingbehaviorinecclwscccomposites |