Bio-inspired self-prestressing concrete (SPC) involving basalt fibers and expansive agent

被引：19
作者：
Chu, S. H. [1 ,2 ,4 ]
Khan, M. [2 ]
Deng, X. [2 ]
Unluer, C. [3 ]
机构：
[1] Nanyang Technol Univ, Singapore, Singapore
[2] Univ Hong Kong, Hong Kong, Peoples R China
[3] Univ Glasgow, Sch Engn, Glasgow City G12 8LT, Scotland
[4] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore, Singapore
来源：
CEMENT AND CONCRETE RESEARCH | 2022年 / 155卷
关键词：
Composite; Compressive strength; Expansion; fiber reinforcement; WATER FILM THICKNESS; STEEL FIBER; REINFORCED CONCRETE; CEMENTITIOUS COMPOSITE; MECHANICAL-PROPERTIES; FLEXURAL BEHAVIOR; HYBRID FIBERS; PERFORMANCE; TENSILE; PVA;
D O I：
10.1016/j.cemconres.2022.106735
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
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 per-formance. 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 contri-bution 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.
引用
收藏
页数：12
相关论文
共 64 条
[21]   Active Prestress Leads to an Apparent Stiffening of Cells through Geometrical Effects [J].
Fischer-Friedrich, Elisabeth .
BIOPHYSICAL JOURNAL, 2018, 114 (02) :419-424
[22]   An experimental study on the corrosion susceptibility of Recycled Steel Fiber Reinforced Concrete [J].
Frazao, Cristina ;
Diaz, Belen ;
Barros, Joaquim ;
Alexandre Bogas, J. ;
Toptan, Fatih .
CEMENT & CONCRETE COMPOSITES, 2019, 96 :138-153
[23]   Deriving stress-strain relationships for steel fibre concrete in tension from tests of beams with ordinary reinforcement [J].
Gribniak, Viktor ;
Kaklauskas, Gintaris ;
Kwan, Albert Kwok Hung ;
Bacinskas, Darius ;
Ulbinas, Darius .
ENGINEERING STRUCTURES, 2012, 42 :387-395
[24]   Effect of steel fiber addition and aspect ratio on bond strength of cold-bonded fly ash lightweight aggregate concretes [J].
Guneyisi, Erhan ;
Gesoglu, Mehmet ;
Ipek, Suleyman .
CONSTRUCTION AND BUILDING MATERIALS, 2013, 47 :358-365
[25]   Strain hardening ultra-high performance concrete (SHUHPC) incorporating CNF-coated polyethylene fibers [J].
He, Shan ;
Qiu, Jishen ;
Li, Junxia ;
Yang, En-Hua .
CEMENT AND CONCRETE RESEARCH, 2017, 98 :50-60
[26]  
Hong Kong SAR Government, 2017, CONSTRUCTION STANDAR, V1
[27]   Age-related changes in longitudinal prestress in human abdominal aorta [J].
Horny, Lukas ;
Adamek, Tomas ;
Zitny, Rudolf .
ARCHIVE OF APPLIED MECHANICS, 2013, 83 (06) :875-888
[28]  
Hu SG, 1999, CEMENT CONCRETE RES, V29, P1013
[29]   Local bond performance of rebar embedded in steel-polypropylene hybrid fiber reinforced concrete under monotonic and cyclic loading [J].
Huang, Le ;
Chi, Yin ;
Xu, Lihua ;
Chen, Ping ;
Zhang, Aoli .
CONSTRUCTION AND BUILDING MATERIALS, 2016, 103 :77-92
[30]   A green material from rock: basalt fiber - a review [J].
Jamshaid, Hafsa ;
Mishra, Rajesh .
JOURNAL OF THE TEXTILE INSTITUTE, 2016, 107 (07) :923-937
1234567