Characteristic and optimization of ferrite-rich sulfoaluminate-based composite cement suitable for cold region tunnels
文献类型：期刊论文
| 作者 | Peng, You1,2; Li, Li2; Tan, Xian-jun1; Qiu, Xin1; Zheng, Pei-chao1; Xie, Jun1,2; Chen, Wei-zhong1; Reziwanguli, Sha-ta-er3 |
| 刊名 | JOURNAL OF CENTRAL SOUTH UNIVERSITY
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 31期号:8页码:2794-2809 |
| 关键词 | ferrite-rich sulfoaluminate cement cold zone early strength synergist mechanical property microstructure pumped storage power |
| ISSN号 | 2095-2899 |
| DOI | 10.1007/s11771-024-5709-1 |
| 英文摘要 | To develop suitable grouting materials for water conveyance tunnels in cold regions, firstly, this study investigated the performance evolution of ferrite-rich sulfoaluminate-based composite cement (FSAC grouting material) at 20 and 3 degrees C. The results show that low temperature only delays the strength development of FSAC grouting material within the first 3 d. Then, the effect of four typical early strength synergists on the early properties of FSAC grouting material was evaluated to optimize the early (<= 1 d) strength at 3 degrees C. The most effective synergist, Ca(HCOO)(2), which enhances the low-temperature early strength without compromising fluidity was selected based on strength and fluidity tests. Its micro-mechanism was analyzed by XRD, TG, and SEM methods. The results reveal that the most suitable dosage range is 0.3 wt%-0.5 wt%. Proper addition of Ca(HCOO)(2) changed the crystal morphology of the hydration products, decreased the pore size and formed more compact hydration products by interlocking and overlapping. However, excessive addition of Ca(HCOO)(2) inhibited the hydration reaction, resulting in a simple and loose structure of the hydration products. The research results have reference value for controlling surrounding rock deformation and preventing water and mud inrushes during the excavation in cold region tunnels. |
| 资助项目 | National Natural Science Foundation of China[52279119] ; Science and Technology Planning Project of Xizang Autonomous Region, China[XZ202201ZY0021G] ; Second Xizang Plateau Scientific Expedition and Research Program of China[2019QZKK0904] ; National Natural Science Foundation for Distinguished Young Scholars of China[51922104] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001338961200017 |
| 出版者 | JOURNAL OF CENTRAL SOUTH UNIV |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42909]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Li; Tan, Xian-jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China 2.Dalian Univ Technol, Sch Infrastruct Engn, Dalian 116024, Peoples R China 3.Xinjiang Acad Transportat Sci Co Ltd, Urumqi 830000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, You,Li, Li,Tan, Xian-jun,et al. Characteristic and optimization of ferrite-rich sulfoaluminate-based composite cement suitable for cold region tunnels[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2024,31(8):2794-2809. |
| APA | Peng, You.,Li, Li.,Tan, Xian-jun.,Qiu, Xin.,Zheng, Pei-chao.,...&Reziwanguli, Sha-ta-er.(2024).Characteristic and optimization of ferrite-rich sulfoaluminate-based composite cement suitable for cold region tunnels.JOURNAL OF CENTRAL SOUTH UNIVERSITY,31(8),2794-2809. |
| MLA | Peng, You,et al."Characteristic and optimization of ferrite-rich sulfoaluminate-based composite cement suitable for cold region tunnels".JOURNAL OF CENTRAL SOUTH UNIVERSITY 31.8(2024):2794-2809. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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