Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent
Inspired by muscle structure, the synergy between basalt fibers (BF) and expansive agent (EA) was revealed and utilized for the development of self-prestressing concrete (SPC). When BF and EA were used together, the restraining action of BF against the autogenous expansion of concrete yielded active...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/163626 |
| _version_ | 1811688171491033088 |
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| author | Chu, S. H. Khan, M. Deng, X. Unluer, C. |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Chu, S. H. Khan, M. Deng, X. Unluer, C. |
| author_sort | Chu, S. H. |
| collection | NTU |
| description | Inspired by muscle structure, the synergy between basalt fibers (BF) and expansive agent (EA) was revealed and utilized for the development of self-prestressing concrete (SPC). When BF and EA were used together, the restraining action of BF against the autogenous expansion of concrete yielded active confining stress, during which fibers were prestressed, producing SPC. The properties of SPC were investigated by varying BF (0–0.6%) and EA (0–3%) contents. The addition of EA and/or BF decreased workability but improved mechanical performance. The strength-workability envelopes revealed the superiority of the combined use of EA and BF, whose synergistic effect was analysed both qualitatively and quantitatively. Possible mechanisms behind their contribution to sample performance were discussed considering passive and active confinements. Scanning electron microscopy images revealed improvement in the fiber-matrix interface with an increase in the amount of EA. This bio-inspired work shall be beneficial to the development of SPC with improved performance. |
| first_indexed | 2024-10-01T05:27:58Z |
| format | Journal Article |
| id | ntu-10356/163626 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:27:58Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1636262022-12-13T01:38:12Z Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent Chu, S. H. Khan, M. Deng, X. Unluer, C. School of Civil and Environmental Engineering Engineering::Civil engineering Composite Compressive Strength Inspired by muscle structure, the synergy between basalt fibers (BF) and expansive agent (EA) was revealed and utilized for the development of self-prestressing concrete (SPC). When BF and EA were used together, the restraining action of BF against the autogenous expansion of concrete yielded active confining stress, during which fibers were prestressed, producing SPC. The properties of SPC were investigated by varying BF (0–0.6%) and EA (0–3%) contents. The addition of EA and/or BF decreased workability but improved mechanical performance. The strength-workability envelopes revealed the superiority of the combined use of EA and BF, whose synergistic effect was analysed both qualitatively and quantitatively. Possible mechanisms behind their contribution to sample performance were discussed considering passive and active confinements. Scanning electron microscopy images revealed improvement in the fiber-matrix interface with an increase in the amount of EA. This bio-inspired work shall be beneficial to the development of SPC with improved performance. The authors would like to express thanks to Department of Civil Engineering at The University of Hong Kong for offering necessary assistance and support. 2022-12-13T01:38:12Z 2022-12-13T01:38:12Z 2022 Journal Article Chu, S. H., Khan, M., Deng, X. & Unluer, C. (2022). Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent. Cement and Concrete Research, 155, 106735-. https://dx.doi.org/10.1016/j.cemconres.2022.106735 0008-8846 https://hdl.handle.net/10356/163626 10.1016/j.cemconres.2022.106735 2-s2.0-85124585012 155 106735 en Cement and Concrete Research © 2022 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Civil engineering Composite Compressive Strength Chu, S. H. Khan, M. Deng, X. Unluer, C. Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent |
| title | Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent |
| title_full | Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent |
| title_fullStr | Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent |
| title_full_unstemmed | Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent |
| title_short | Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent |
| title_sort | bio inspired self prestressing concrete spc involving basalt fibers and expansive agent |
| topic | Engineering::Civil engineering Composite Compressive Strength |
| url | https://hdl.handle.net/10356/163626 |
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