Self-sensing properties of Engineered Cementitious Composites
The piezoresistivity of cement-based material has already been investigated, but mainly restricted to compressive stress sensing due to brittleness of concrete. Conversely, Engineered Cementitious Composites (ECC) presents superb tensile ductility and pseudo strain-hardening property, which offers u...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/139541 |
| _version_ | 1826115438509031424 |
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| author | Huang, Yi Li, Hongliang Qian, Shunzhi |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Huang, Yi Li, Hongliang Qian, Shunzhi |
| author_sort | Huang, Yi |
| collection | NTU |
| description | The piezoresistivity of cement-based material has already been investigated, but mainly restricted to compressive stress sensing due to brittleness of concrete. Conversely, Engineered Cementitious Composites (ECC) presents superb tensile ductility and pseudo strain-hardening property, which offers unique opportunity for exploring sensing of tensile stress/strain. In this paper, Carbon Black (CB) and supplementary cementitious materials (SCM) were incorporated into ECC to decrease the bulk resistivity and simultaneously acquire high tensile ductility. The resistance of ECC, high fly ash (HFA)-ECC and CB-ECC was measured through a two-probe method under uniaxial tension test. All specimens exhibited increase of resistivity once cracks occurred between two electrodes. The fractional Gauge Factor (GF) in strain-hardening segment was calculated and the relationship of GF and tensile strain was experimentally investigated, which could be potentially utilized in the field of structural health monitoring to enhance the safety of concrete infrastructures. |
| first_indexed | 2024-10-01T03:55:29Z |
| format | Journal Article |
| id | ntu-10356/139541 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:55:29Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1395412020-05-20T04:53:34Z Self-sensing properties of Engineered Cementitious Composites Huang, Yi Li, Hongliang Qian, Shunzhi School of Civil and Environmental Engineering Engineering::Civil engineering Carbon Black Engineered Cementitious Composites The piezoresistivity of cement-based material has already been investigated, but mainly restricted to compressive stress sensing due to brittleness of concrete. Conversely, Engineered Cementitious Composites (ECC) presents superb tensile ductility and pseudo strain-hardening property, which offers unique opportunity for exploring sensing of tensile stress/strain. In this paper, Carbon Black (CB) and supplementary cementitious materials (SCM) were incorporated into ECC to decrease the bulk resistivity and simultaneously acquire high tensile ductility. The resistance of ECC, high fly ash (HFA)-ECC and CB-ECC was measured through a two-probe method under uniaxial tension test. All specimens exhibited increase of resistivity once cracks occurred between two electrodes. The fractional Gauge Factor (GF) in strain-hardening segment was calculated and the relationship of GF and tensile strain was experimentally investigated, which could be potentially utilized in the field of structural health monitoring to enhance the safety of concrete infrastructures. 2020-05-20T04:53:34Z 2020-05-20T04:53:34Z 2018 Journal Article Huang, Y., Li, H., & Qian, S. (2018). Self-sensing properties of Engineered Cementitious Composites. Construction and Building Materials, 174, 253-262. doi:10.1016/j.conbuildmat.2018.04.129 0950-0618 https://hdl.handle.net/10356/139541 10.1016/j.conbuildmat.2018.04.129 2-s2.0-85045562297 174 253 262 en Construction and Building Materials © 2018 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Carbon Black Engineered Cementitious Composites Huang, Yi Li, Hongliang Qian, Shunzhi Self-sensing properties of Engineered Cementitious Composites |
| title | Self-sensing properties of Engineered Cementitious Composites |
| title_full | Self-sensing properties of Engineered Cementitious Composites |
| title_fullStr | Self-sensing properties of Engineered Cementitious Composites |
| title_full_unstemmed | Self-sensing properties of Engineered Cementitious Composites |
| title_short | Self-sensing properties of Engineered Cementitious Composites |
| title_sort | self sensing properties of engineered cementitious composites |
| topic | Engineering::Civil engineering Carbon Black Engineered Cementitious Composites |
| url | https://hdl.handle.net/10356/139541 |
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