Experimental exploration on impact characteristics of ultra-high performance concrete at low and cryogenic temperature
文献类型：期刊论文
| 作者 | Chi, Kaiyi1; Li, Jun1; Shao, Ruizhe1; Liu, Jian2; Liu, Zhongxian3; Wu, Chengqing1,4 |
| 刊名 | JOURNAL OF BUILDING ENGINEERING
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 98页码:19 |
| 关键词 | Low/cryogenic temperature UHPC Strain rate effect Compressive strength Splitting tensile strength Dynamic increase factor |
| DOI | 10.1016/j.jobe.2024.111478 |
| 英文摘要 | Concrete structures in polar region and liquefied gas storage system need to be designed against combined low temperature and dynamic loads. Understanding the mechanical behaviour of concrete under these extreme conditions is critical for ensuring the structural integrity and safety. This study presents an experimental investigation on the dynamic compressive and splitting tensile performance of UHPC subjected to low temperatures of-70 degrees C and-160 degrees C. The compressive and splitting tensile strengths of UHPC were examined at various strain rates (40-160 s- 1 for compression, 20-80 s- 1 for splitting tension) and temperature conditions (at 20,-70 and-160 degrees C) via Split Hopkinson Pressure Bar (SHPB) device. The dynamic compressive as well as splitting tensile strengths of UHPC increased significantly with rose of the strain rate. The dynamic increase factors in compression (CDIFs) decreased with the decline in temperature. The compressive strength under a strain rate of 120 s- 1 at ambient temperature were approximately 1.09 and 1.16 times higher than at-70 and-160 degrees C, respectively. On the other hand, an opposite behaviour was observed for the dynamic increase factors in split tension (TDIFs) of UHPC, i.e., TDIFs rose as the temperature decreased. Based on the experimental data, it showed that the TDIFs at-70 and-160 degrees C were nearly 1.16 and 1.21 times higher than at 20 degrees C at the specified strain rate 60 s- 1 . |
| 资助项目 | ARC Discovery Grant[DP210101100] |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001381293300001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/43425]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Jian; Liu, Zhongxian; Wu, Chengqing |
| 作者单位 | 1.Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia 2.Guangzhou Univ, Earthquake Engn Res & Test Ctr, Guangzhou 510405, Peoples R China 3.Tianjin Chengjian Univ, Tianjin Key Lab Civil Struct Protect & Reinforceme, Tianjin 300384, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chi, Kaiyi,Li, Jun,Shao, Ruizhe,et al. Experimental exploration on impact characteristics of ultra-high performance concrete at low and cryogenic temperature[J]. JOURNAL OF BUILDING ENGINEERING,2024,98:19. |
| APA | Chi, Kaiyi,Li, Jun,Shao, Ruizhe,Liu, Jian,Liu, Zhongxian,&Wu, Chengqing.(2024).Experimental exploration on impact characteristics of ultra-high performance concrete at low and cryogenic temperature.JOURNAL OF BUILDING ENGINEERING,98,19. |
| MLA | Chi, Kaiyi,et al."Experimental exploration on impact characteristics of ultra-high performance concrete at low and cryogenic temperature".JOURNAL OF BUILDING ENGINEERING 98(2024):19. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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