Electro-Mechanical Impedance Technique for Assessing the Setting Time of Steel-Fiber-Reinforced Mortar Using Embedded Piezoelectric Sensor
The electro-mechanical impedance (EMI) change in Piezoelectric (PZT) sensors embedded in steel-fiber-reinforced mortar (SFRM) was investigated to assess the material setting time. The EMI was continuously monitored for 12 h by the PZT sensor embedded in SFRM having fiber volume fraction of 0.5%, 1.5...
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| Format: | Article |
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MDPI AG
2022-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/8/3964 |
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| author | Jun-Cheol Lee Chang-Joon Lee |
| author_facet | Jun-Cheol Lee Chang-Joon Lee |
| author_sort | Jun-Cheol Lee |
| collection | DOAJ |
| description | The electro-mechanical impedance (EMI) change in Piezoelectric (PZT) sensors embedded in steel-fiber-reinforced mortar (SFRM) was investigated to assess the material setting time. The EMI was continuously monitored for 12 h by the PZT sensor embedded in SFRM having fiber volume fraction of 0.5%, 1.5%, and 2.0%. The initial and final setting time of the SFRM were estimated using EMI signal change. The penetration resistance test, a conventional test method for the setting time of cement mortar, was also conducted. In the penetration resistance test, it was observed that the initial and the final setting time of SFRM accelerated as the volume fraction of the steel fiber increased. On the other hand, in the EMI sensing technique, the initial and the final setting time of the SFRM were consistent regardless of the fiber volume fraction. |
| first_indexed | 2024-03-09T11:12:08Z |
| format | Article |
| id | doaj.art-89ad3ee2463f4f51bc0968303be0f1ae |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T11:12:08Z |
| publishDate | 2022-04-01 |
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| series | Applied Sciences |
| spelling | doaj.art-89ad3ee2463f4f51bc0968303be0f1ae2023-12-01T00:42:31ZengMDPI AGApplied Sciences2076-34172022-04-01128396410.3390/app12083964Electro-Mechanical Impedance Technique for Assessing the Setting Time of Steel-Fiber-Reinforced Mortar Using Embedded Piezoelectric SensorJun-Cheol Lee0Chang-Joon Lee1Department of Architecture, Seowon University, Cheongju 28674, KoreaDepartment of Architectural Engineering, Chungbuk National University, Cheongju 28644, KoreaThe electro-mechanical impedance (EMI) change in Piezoelectric (PZT) sensors embedded in steel-fiber-reinforced mortar (SFRM) was investigated to assess the material setting time. The EMI was continuously monitored for 12 h by the PZT sensor embedded in SFRM having fiber volume fraction of 0.5%, 1.5%, and 2.0%. The initial and final setting time of the SFRM were estimated using EMI signal change. The penetration resistance test, a conventional test method for the setting time of cement mortar, was also conducted. In the penetration resistance test, it was observed that the initial and the final setting time of SFRM accelerated as the volume fraction of the steel fiber increased. On the other hand, in the EMI sensing technique, the initial and the final setting time of the SFRM were consistent regardless of the fiber volume fraction.https://www.mdpi.com/2076-3417/12/8/3964electro-mechanical impedancesetting timesteel-reinforced mortarpiezoelectric sensor |
| spellingShingle | Jun-Cheol Lee Chang-Joon Lee Electro-Mechanical Impedance Technique for Assessing the Setting Time of Steel-Fiber-Reinforced Mortar Using Embedded Piezoelectric Sensor Applied Sciences electro-mechanical impedance setting time steel-reinforced mortar piezoelectric sensor |
| title | Electro-Mechanical Impedance Technique for Assessing the Setting Time of Steel-Fiber-Reinforced Mortar Using Embedded Piezoelectric Sensor |
| title_full | Electro-Mechanical Impedance Technique for Assessing the Setting Time of Steel-Fiber-Reinforced Mortar Using Embedded Piezoelectric Sensor |
| title_fullStr | Electro-Mechanical Impedance Technique for Assessing the Setting Time of Steel-Fiber-Reinforced Mortar Using Embedded Piezoelectric Sensor |
| title_full_unstemmed | Electro-Mechanical Impedance Technique for Assessing the Setting Time of Steel-Fiber-Reinforced Mortar Using Embedded Piezoelectric Sensor |
| title_short | Electro-Mechanical Impedance Technique for Assessing the Setting Time of Steel-Fiber-Reinforced Mortar Using Embedded Piezoelectric Sensor |
| title_sort | electro mechanical impedance technique for assessing the setting time of steel fiber reinforced mortar using embedded piezoelectric sensor |
| topic | electro-mechanical impedance setting time steel-reinforced mortar piezoelectric sensor |
| url | https://www.mdpi.com/2076-3417/12/8/3964 |
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