| Effects of waste oyster shell replacing fine aggregate on the dynamic mechanical characteristics of concrete | |
| Lin, Yanling1,2,3; Ren, Yuzhe2,3; Ge, Tiange2,3; Al-Ajamee, Mohammed4; Xu, Yinglei3; Mohamed, Abubaker Ahmed Mohamed Salih4; Ma, Lu5; Zhang, Hongxu1 | |
| 2024-08-27 | |
| 发表期刊 | SCIENTIFIC REPORTS
 |
| ISSN | 2045-2322 |
| 卷号 | 14期号:1 |
| 摘要 | Waste oyster shells (WOS) have the potential to serve as a construction material, offering a sustainable alternative to traditional fine aggregates in the production of WOS concrete. This can play a critical role in reducing environmental issues resulting from the overexploitation of river sand and the haphazard disposal of WOS. Although existing research has predominantly focused on understanding the static mechanical characteristics of concrete when WOS is employed, the dynamic mechanical properties have still received less attention. To understand the impact of WOS as a substitute for fine aggregates on the dynamic mechanical properties of concrete, a series of tests employing Split Hopkinson Pressure Bar (SHPB) were carried out. The findings demonstrate that the peak stress and elastic modulus increase as the WOS substitution ratio (Sr) increases from 0 to 20% but exhibit an exponential decline as Sr increases from 20 to 100%. This response can be explained by the joint effects of the pore-filling effect caused by WOS sand and the increasing air content caused by WOS sand. As Sr increases from 0 to 20%, the pore-filling mechanism becomes predominant as the water absorption rate decreases slightly from 4.31 to 3.83%. However, for Sr increasing from 20 to 100%, the negative influence of the air content becomes the primary contributing factor, where the water absorption rate increases from 3.83 to 14.68%. Furthermore, under the same impact pressure, the concrete with Sr = 20% absorbed the most energy, providing the best dynamic mechanical performance. These findings highlight the potential use of WOS in concrete for improving its dynamic characteristics, promoting both sustainable construction and enhancing the material properties in impact-resistant structures. |
| 关键词 | Waste oyster shell Fine aggregate Dynamic mechanical behavior Stress-strain relationship Elastic modulus Absorbed energy |
| 其他关键词 | EXTENSION ; STRENGTH ; BRICKS ; POWDER ; CEMENT ; LIFE |
| DOI | 10.1038/s41598-024-70505-4 |
| 收录类别 | SCIE |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:001299817400096 |
| 出版者 | NATURE PORTFOLIO |
| 原始文献类型 | Article |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.library.ouchn.edu.cn/handle/39V7QQFX/171610 |
| 专题 | 国家开放大学江苏分部 |
| 通讯作者 | Al-Ajamee, Mohammed |
| 作者单位 | 1.Jiangsu Open Univ, Sch Construct Engn, 399 North Jiangdong Rd, Nanjing, Peoples R China; 2.Hohai Univ, Key Lab, Minist Educ Geomech & Embankment Engn, 1 Xikang Rd, Nanjing, Peoples R China; 3.Hohai Univ, Coll Civil & Transportat Engn, 1 Xikang Rd, Nanjing, Peoples R China; 4.Univ Khartoum, Fac Engn, Dept Civil Engn, Khartoum, Sudan; 5.Anhui Sci & Technol Univ, Coll Architecture, 1501 Huangshan Ave, Bengbu, Peoples R China |
| 第一作者单位 | 国家开放大学江苏分部 |
| 第一作者的第一单位 | 国家开放大学江苏分部 |
| 推荐引用方式 GB/T 7714 | Lin, Yanling,Ren, Yuzhe,Ge, Tiange,et al. Effects of waste oyster shell replacing fine aggregate on the dynamic mechanical characteristics of concrete[J]. SCIENTIFIC REPORTS,2024,14(1). |
| APA | Lin, Yanling.,Ren, Yuzhe.,Ge, Tiange.,Al-Ajamee, Mohammed.,Xu, Yinglei.,...&Zhang, Hongxu.(2024).Effects of waste oyster shell replacing fine aggregate on the dynamic mechanical characteristics of concrete.SCIENTIFIC REPORTS,14(1). |
| MLA | Lin, Yanling,et al."Effects of waste oyster shell replacing fine aggregate on the dynamic mechanical characteristics of concrete".SCIENTIFIC REPORTS 14.1(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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