Experimental investigation of marine soil stabilization with recycled aggregates and MgO: implications for CO2 sequestration
文献类型：期刊论文
| 作者 | Hou, Yunlu3,4; Onyekwena, Chikezie Chimere1,2; Li, Qi3,4
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| 刊名 | CANADIAN GEOTECHNICAL JOURNAL
 |
| 出版日期 | 2025 |
| 卷号 | 62页码:17 |
| 关键词 | recycled aggregates magnesium oxide marine soil stabilization CO2 sequestration potential mechanical properties |
| ISSN号 | 0008-3674 |
| DOI | 10.1139/cgj-2024-0371 |
| 英文摘要 | Dredged marine soils are increasingly recognized as a valuable resource amidst growing environmental concerns and the need for sustainable waste recycling. This study presents an innovative soil stabilization technique combining recycled aggregate (RA) and magnesium oxide (MgO) with a dual focus on enhancing soil properties and promoting carbon dioxide (CO2) sequestration. The stabilizing effects of RA and MgO were evaluated independently and synergistically under varied curing conditions and durations, with microstructural and mechanical properties analysed using scanned electron microscopy, X-ray diffraction, and uniaxial tests. Carbonation experiments quantified CO2 fixation potential, with the formation of hydration and carbonation products, along with dynamic moisture content and pH conditions, playing a significant role in enhancing the structural reinforcement of the soil. The combined RA-MgO treatment achieved superior mechanical stability (1.28-3.02 MPa) and a CO2 sequestration capacity of up to 11 g/kg without compromising performance. This study highlights the dual environmental and structural benefits of utilizing RA and low-content MgO for marine soil stabilization, offering a sustainable pathway to reduce carbon emissions, promote waste recycling, and support resilient infrastructure development. |
| 资助项目 | Na-tional Natural Science Foundation of China[42307333] ; China Postdoctoral Science Foundation[2023M733710] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering[SKLGME022007] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001443619100001 |
| 出版者 | CANADIAN SCIENCE PUBLISHING |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36467]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Qi |
| 作者单位 | 1.Hubei Res & Design Inst Chem Ind, Wuhan 430000, Peoples R China 2.Wuhan Inst Technol, Sch Civil Engn & Architecture, Wuhan 430074, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Yunlu,Onyekwena, Chikezie Chimere,Li, Qi. Experimental investigation of marine soil stabilization with recycled aggregates and MgO: implications for CO2 sequestration[J]. CANADIAN GEOTECHNICAL JOURNAL,2025,62:17. |
| APA | Hou, Yunlu,Onyekwena, Chikezie Chimere,&Li, Qi.(2025).Experimental investigation of marine soil stabilization with recycled aggregates and MgO: implications for CO2 sequestration.CANADIAN GEOTECHNICAL JOURNAL,62,17. |
| MLA | Hou, Yunlu,et al."Experimental investigation of marine soil stabilization with recycled aggregates and MgO: implications for CO2 sequestration".CANADIAN GEOTECHNICAL JOURNAL 62(2025):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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