Fractal Characteristics of the Pore Structure of Coral Powder-Cement Slurry under Different Fractal Models
文献类型：期刊论文
| 作者 | Meng, Qingshan2; Qin, Qinglong2,3; Yang, Huamei4; Zhou, Haoran2,3; Wu, Kai2,3; Wang, Lei1 |
| 刊名 | FRACTAL AND FRACTIONAL
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 6期号:3页码:- |
| 关键词 | coral powder MIP Neimark's model Ji's model Pfeifer and Avnir's model fractal dimension |
| 英文摘要 | In this study, coral powder with different contents and levels of fineness were incorporated into cement; then, the pore structure of a coral powder-cement slurry was measured using the MIP test at days 3 days and 28, respectively. Neimark's model, Ji's model, and Pfeifer and Avnir's model were also used to analyze the fractal characteristics of the coral powder-cement slurry. The results show that the coral powder-cement slurry has multifractal characteristics when using Neimark's model, and the entire pore size range of the cement slurry can be divided into three parts: Region I (1-200 mu m), Region II (70 nm-4 mu m), and Region III (5-500 nm). The pore surface fractal dimension of both Regions I and III is less than 3, while that of Region II is greater than 3. This indicates that Regions I and III have obvious fractal characteristics, which Region II does not. Meanwhile, the pore surface fractal dimension of Region I is positively correlated with hydration age, while the pore surface fractal dimension of Region III is less affected by hydration age and coral powder contents. Ji's model reveals that coral powder-cement slurry also has multifractal characteristics, but the entire pore size range of the cement slurry can be divided into two parts: Region I (5.482 nm-500 m) and Region II (120 nm-370 mu m). The pore volume fractal dimension of Region I is greater than 2 and less than 2.5, while that of Region II is greater than 2.9 and less than 3. Therefore, both Regions I and II have fractal characteristics. In addition, the coral powder admixture, fineness, and age have large effects on the pore volume fractal dimension and pore size range of Region II. Pfeifer and Avnir's model reveals that the entire pore size range of cement slurry can also be divided into Region I (5.482-600 nm), Region II (120 nm-10 mu m), and Region III (5-365 mu m), and that the pore surface fractal dimension of both Regions I and III is less than 3, while that of Region II is greater than 3. This indicates that Regions I and III have fractal characteristics, while Region II does not have fractal characteristics. |
| 学科主题 | Mathematics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000776508400001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35374]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.School of Intelligent Construction, Wuchang University of Technology, Wuhan 430223, China |
| 推荐引用方式 GB/T 7714 | Meng, Qingshan,Qin, Qinglong,Yang, Huamei,et al. Fractal Characteristics of the Pore Structure of Coral Powder-Cement Slurry under Different Fractal Models[J]. FRACTAL AND FRACTIONAL,2022,6(3):-. |
| APA | Meng, Qingshan,Qin, Qinglong,Yang, Huamei,Zhou, Haoran,Wu, Kai,&Wang, Lei.(2022).Fractal Characteristics of the Pore Structure of Coral Powder-Cement Slurry under Different Fractal Models.FRACTAL AND FRACTIONAL,6(3),-. |
| MLA | Meng, Qingshan,et al."Fractal Characteristics of the Pore Structure of Coral Powder-Cement Slurry under Different Fractal Models".FRACTAL AND FRACTIONAL 6.3(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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