| Effect of fiber content and fiber length on the dynamic compressive properties of strain-hardening ultra-high performance concrete | |
Zhang D1 ; Tu H(涂欢)1,2; Li Y3; Weng YW4
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| Corresponding Author | Tu, Huan(tuhuan@imech.ac.cn) |
| Source Publication | CONSTRUCTION AND BUILDING MATERIALS
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| 2022-04-18 | |
| Volume | 328Pages:10 |
| ISSN | 0950-0618 |
| Abstract | 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. |
| Keyword | Strain hardening ultra-high performance concrete PE fiber Dynamic properties Impact SHPB |
| DOI | 10.1016/j.conbuildmat.2022.127024 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000773502700003 |
| WOS Keyword | ENGINEERED CEMENTITIOUS COMPOSITES ; REINFORCED CONCRETE ; MECHANICAL-PROPERTIES ; INCREASE FACTOR ; BEHAVIOR ; RESISTANCE |
| WOS Research Area | Construction & Building Technology ; Engineering ; Materials Science |
| WOS Subject | Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary |
| Funding Project | 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 |
| Funding Organization | 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 |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Tu, Huan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/88845 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Peoples R China; 2.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China; 3.Harbin Inst Technol, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China; 4.Hong Kong Polytech Univ, Dept Bldg & Real Estate, Hong Kong, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang D,Tu H,Li Y,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 D,涂欢,Li Y,&Weng YW.(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 D,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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2022FA422_2022_Eff（11960KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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