The effect of interface on the strength characteristics and fracture mechanism of the coral reef limestone-concrete combination specimen
文献类型：期刊论文
| 作者 | Wu, Kai1,2; Meng, Qingshan1,2; Ding, Haozhen1,2; Xu, Mingnan1; Wang, Xinzhi1,2; Wang, Chi1,2 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2023-12-15 |
| 卷号 | 409页码:13 |
| 关键词 | Coral reef limestone Acoustic emission Interface effect Fracture mechanism |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2023.133749 |
| 英文摘要 | Biological and biochemical geneses bring complex structures to coral reef limestone (CRL), leading to pronounced anisotropy and heterogeneity. The stress field concentration induced by pore structure introduces a considerable dispersion in mechanical parameters and reduce the strength of CRL significantly. The CRL-C specimens were made using coral reef limestone to conduct uniaxial compression tests with loading rate of 0.002 mm/s, revealing the controlling mechanism of interface inclination angle for the strength of CRL-C specimens. The experiment results shows that the peak strength, peak strain, and modulus of elasticity of the combination all tend to lessen and then grow with increasing the interfacial inclination angle. The achieved results indicate that the tensile damage occurs in specimens with 0 degrees, 15 degrees, and 90 degrees inclination angles, whereas the tension-shear stress damage takes place for specimens with 30 degrees inclination angle. In turn, the shear damage occurs along the interface for specimens with 45 degrees, 60 degrees, and 75 degrees inclination angles. The strength of combination specimens underwent the shear failure is noticeably smaller than that of the combination specimens damaged across the interface. Additionally, the cement mortar at the interface has a remarkable reinforcing effect on the interface strength, and the CRL-C interface possesses the highest cohesion and a lower internal friction angle compared to terrestrial rocks. Simultaneously, the parameters of the CRL-C specimens in the single-interface model are appropriately determined based on the interface strength. The inclination range of the combination specimen damaged along the interface is 35.58 degrees |
| 资助项目 | National Natural Science Foundation of China[41877267] ; National Natural Science Foundation of China[41877260] ; Priority Research Program of the Chinese Academy of Science[XDA13010201] ; Special Foundation for National Science and Technology Basic Research Program of China[2018FY10010003] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001099865400001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39923]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Meng, Qingshan |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Kai,Meng, Qingshan,Ding, Haozhen,et al. The effect of interface on the strength characteristics and fracture mechanism of the coral reef limestone-concrete combination specimen[J]. CONSTRUCTION AND BUILDING MATERIALS,2023,409:13. |
| APA | Wu, Kai,Meng, Qingshan,Ding, Haozhen,Xu, Mingnan,Wang, Xinzhi,&Wang, Chi.(2023).The effect of interface on the strength characteristics and fracture mechanism of the coral reef limestone-concrete combination specimen.CONSTRUCTION AND BUILDING MATERIALS,409,13. |
| MLA | Wu, Kai,et al."The effect of interface on the strength characteristics and fracture mechanism of the coral reef limestone-concrete combination specimen".CONSTRUCTION AND BUILDING MATERIALS 409(2023):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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