Synergistic recycling of ground granulated blast furnace slag-red mud-phosphogypsum for developing low-carbon composite cementitious material: Performance characterization and process optimization
文献类型：期刊论文
| 作者 | Sun, Chuanbo2,3; Chen, Xin1,2; Lu, Longzhao1,2; Yi, Fu3; Li, Jiang-shan1,2 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2025-04-25 |
| 卷号 | 473页码:11 |
| 关键词 | Ground granulated blast furnace slag Red mud Phosphogypsum Low-carbon composite cementitious material Process optimization |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2025.141025 |
| 英文摘要 | A low-carbon composite cementitious material based on all-solid wastes was developed by synergistically utilizing ground granulated blast furnace slag (GGBS), red mud (RM), and phosphogypsum (PG). By adjusting the material proportions, the relationships between water demand for standard consistency, setting time, flowability, soundness, and mechanical properties of the composite material were explored. The hydration products, microstructure, and heavy metal leaching risks of the composite materials at different ratios were also investigated. The results demonstrate that the incorporation of RM increased the water demand for standard consistency, while the addition of PG had a retarding effect on the paste. The produced material exhibited excellent soundness and workability. The GGBS-PG system showed stronger hydration synergy compared to the GGBS-RM system. When the mass ratio of MGGBS: MRM: MPG was 6:2:2, the unconfined compressive strength (UCS) of the composite cementitious material reached a maximum of 30.86 MPa after 28 days of curing. The (N, C)-A-S-H structure at this ratio exhibited the highest degree of polymerization for H-O-H and Si-O-Al groups, and meanwhile the ettringite (AFt) began to turn into monosulfoaluminate (Ms). As a low-carbon composite cementitious material with controllable strength, the GGBS-RM-PG ternary composite material presents an environmentally friendly alternative to traditional cement-based materials. |
| 资助项目 | National Natural Science Foundation of China[52478376] ; National Natural Science Foundation of China[42177163] ; Anhui Province Key research and development Project[2023t07020011] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001459555500001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36187]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Chen, Xin |
| 作者单位 | 1.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Peoples R China 3.Liaoning Tech Univ, Sch Civil Engn, Fuxin 123000, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Chuanbo,Chen, Xin,Lu, Longzhao,et al. Synergistic recycling of ground granulated blast furnace slag-red mud-phosphogypsum for developing low-carbon composite cementitious material: Performance characterization and process optimization[J]. CONSTRUCTION AND BUILDING MATERIALS,2025,473:11. |
| APA | Sun, Chuanbo,Chen, Xin,Lu, Longzhao,Yi, Fu,&Li, Jiang-shan.(2025).Synergistic recycling of ground granulated blast furnace slag-red mud-phosphogypsum for developing low-carbon composite cementitious material: Performance characterization and process optimization.CONSTRUCTION AND BUILDING MATERIALS,473,11. |
| MLA | Sun, Chuanbo,et al."Synergistic recycling of ground granulated blast furnace slag-red mud-phosphogypsum for developing low-carbon composite cementitious material: Performance characterization and process optimization".CONSTRUCTION AND BUILDING MATERIALS 473(2025):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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