Mechanical behavior and microstructure mechanism of artificially stabilized marine sediment under high water content
文献类型：期刊论文
| 作者 | Cai, Guang-Hua1,2,3; Zhang, Cai-Hong1; Zhou, Yi-Fan2; Li, Jiang -Shan3; Poon, Chi Sun2 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2024-03-22 |
| 卷号 | 420页码:16 |
| 关键词 | Sediment CaO-GGBS binder Strength prediction Compression creep Microstructural features |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2024.135484 |
| 英文摘要 | The calcium oxide (CaO) activated ground granulated blast-furnace slag (GGBS) is used as a low-carbon binder to stabilize the dredged marine sediment in this research. The purpose is to investigate the physicochemical, strength behaviors, and compressibility by unconfined compression and one-dimensional consolidation tests. The microstructural characteristics were examined using thermogravimetry, Fourier transform infrared spectroscopy, and scanning electron microscopy. The results demonstrated that with the increasing binder dosage, the volume shrinkage ratio and water content of the stabilized sediment decreased while the dry density, pH, and strength increased. The predicted strength equation was proposed under the given curing age and water-binder ratio. With increasing binder dosage, the vertical strain, declining rate of void ratio, creep deformation, pre-yield compressibility and secondary compression index decreased, while the yield stress increased. The microstructural analyses confirmed the existence of cementation products such as CSH, CAH/CASH, and AFt which improved the mechanical properties of sediment through the binding, and filling effects. This research provides a possibility for the reuse of industrial by-product slag and waste-dredged sediment in the application of subgrade fillers, and the CaO-GGBS binder could meet the design requirements content under the binder content was more than 5%. |
| 资助项目 | National Natural Science Foundation of China[41902286] ; National Natural Science Foundation of China[51861165104] ; National Natural Science Foundation of China/Hong Kong Research Grants Council Joint Research Scheme[N_PolyU511/18] ; Open Fund for State Key Laboratory of Geotechnical Mechanics and Engi- neering[SKLGME021029] ; Open Fund for State Key Laboratory of Geotechnical Mechanics and Engi- neering[Z019026] ; CRSRI Open Research Program[CKWV20221015/KY] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001209589200001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41189]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Cai, Guang-Hua; Poon, Chi Sun |
| 作者单位 | 1.Nanjing Forestry Univ, Coll Civil & Engn, Nanjing 210037, Peoples R China 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Guang-Hua,Zhang, Cai-Hong,Zhou, Yi-Fan,et al. Mechanical behavior and microstructure mechanism of artificially stabilized marine sediment under high water content[J]. CONSTRUCTION AND BUILDING MATERIALS,2024,420:16. |
| APA | Cai, Guang-Hua,Zhang, Cai-Hong,Zhou, Yi-Fan,Li, Jiang -Shan,&Poon, Chi Sun.(2024).Mechanical behavior and microstructure mechanism of artificially stabilized marine sediment under high water content.CONSTRUCTION AND BUILDING MATERIALS,420,16. |
| MLA | Cai, Guang-Hua,et al."Mechanical behavior and microstructure mechanism of artificially stabilized marine sediment under high water content".CONSTRUCTION AND BUILDING MATERIALS 420(2024):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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