Experimental investigation on the compressive behaviour of concrete confined by glass fibre geogrid mesh

被引:0
|
作者
Hashemi, Seyed Shaker [1 ]
Rezaei, Seyedahmadreza [1 ]
Matin, Mohsen [1 ]
Vaghefi, Mohammad [1 ]
机构
[1] Persian Gulf Univ, Dept Civil Engn, Mahini St, Bushehr, Iran
关键词
confined concrete; compressive behaviour; glass fibre reinforced geogrid; GFRG; STEEL FIBER; COLUMNS;
D O I
10.1504/IJSTRUCTE.2024.139776
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The study aims to experimentally investigate glass fibre reinforced geogrid (GFRG) mesh confined concrete behaviour. The utilised mesh in this study has openings of 20 mm, weighing 240 gr/m(2), and a tensile strength of 60 KN/m. For this research, 42 standard cylindrical concrete specimens with a diameter of 150 mm and a height of 300 mm were constructed. These specimens were created in both unconfined and confined states, with GFRG mesh confined concrete. The specimens had varying hoop layer counts (1, 1.5, and 2 layers) with concrete covers of 10 mm and 20 mm. After fabrication and curing, the specimens were tested to evaluate their ductility, energy absorption, and compressive strength under various confinement layers and concrete covers. The results revealed that the incorporation of GFRG mesh confined concrete to induce confinement leads to a slight decrease of approximately 3% in confinement strength at 28 days. Ductility and post-cracking behaviour improved, leading to a 20% increase in energy absorption.
引用
收藏
页码:252 / 270
页数:20
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