Effect of fiber content and fiber length on the dynamic compressive properties of strain-hardening ultra-high performance concrete
文献类型：期刊论文
| 作者 | Zhang, Dong4 ; Tu, Huan3,4; Li, Ye2; Weng, Yiwei1; Li Y; Li Y; Li Y; Li Y; Zhang D
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| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2022-04-18 |
| 卷号 | 328页码:10 |
| 关键词 | Strain hardening ultra-high performance concrete PE fiber Dynamic properties Impact SHPB |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2022.127024 |
| 通讯作者 | Tu, Huan(tuhuan@imech.ac.cn) |
| 英文摘要 | Strain-hardening ultra-high performance concrete (SH-UHPC) exhibits excellent mechanical properties at the quasi-static state and becomes a promising material for protective structures exposed to impact or blast threats. But its performance under loads with high magnitude and short duration remains unanswered. The focus of this study is to investigate the dynamic compressive properties of SH-UHPC under high strain rates, which are achieved by split Hopkinson pressure bar (SHPB) tests. SH-UHPC with different fiber contents of 1, 1.5, and 2 vol % and different fiber lengths of 6, 12, and 18 mm are tested. The considered strain rate ranges from 180 s-1 to ~& nbsp;300 s(-1). The results show that SH-UHPC exhibits good impact resistance in terms of integrity. Samples could remain good integrity at a strain rate of 240 s(-1). The key parameters to measure the dynamic properties, i.e. energy absorption, dynamic compressive strength, and dynamic increase factor (DIF) of SH-UHPC show strain rate sensitivity and all of them increase with strain rate. Increasing fiber content leads to a slight improvement of the impact resistance of SH-UHPC while reducing fiber length impairs the impact resistance. Empirical DIF relations of SH-UHPC are firstly proposed in this study. |
| WOS关键词 | ENGINEERED CEMENTITIOUS COMPOSITES ; REINFORCED CONCRETE ; MECHANICAL-PROPERTIES ; INCREASE FACTOR ; BEHAVIOR ; RESISTANCE |
| 资助项目 | College of Civil Engineering of Fuzhou University[JCYJ20200823110420001] ; National Natural Science of China ; Shenzhen Science and Technology Innovation Commission ; Department of Building and Real Estate of The Hong Kong Polytechnic University |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000773502700003 |
| 资助机构 | College of Civil Engineering of Fuzhou University ; National Natural Science of China ; Shenzhen Science and Technology Innovation Commission ; Department of Building and Real Estate of The Hong Kong Polytechnic University |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88844]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Tu, Huan |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Bldg & Real Estate, Hong Kong, Peoples R China 2.Harbin Inst Technol, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China 4.Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Dong,Tu, Huan,Li, Ye,et al. Effect of fiber content and fiber length on the dynamic compressive properties of strain-hardening ultra-high performance concrete[J]. CONSTRUCTION AND BUILDING MATERIALS,2022,328:10. |
| APA | Zhang, Dong.,Tu, Huan.,Li, Ye.,Weng, Yiwei.,Li Y.,...&Zhang D.(2022).Effect of fiber content and fiber length on the dynamic compressive properties of strain-hardening ultra-high performance concrete.CONSTRUCTION AND BUILDING MATERIALS,328,10. |
| MLA | Zhang, Dong,et al."Effect of fiber content and fiber length on the dynamic compressive properties of strain-hardening ultra-high performance concrete".CONSTRUCTION AND BUILDING MATERIALS 328(2022):10. |
入库方式： OAI收割
来源：力学研究所
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