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Title: Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent
Authors: Chu, S. H.
Khan, M.
Deng, X.
Unluer, C.
Keywords: Engineering::Civil engineering
Issue Date: 2022
Source: 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-.
Journal: Cement and Concrete Research
Abstract: 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.
ISSN: 0008-8846
DOI: 10.1016/j.cemconres.2022.106735
Schools: School of Civil and Environmental Engineering 
Rights: © 2022 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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