A microstructure-based model for quantifying irreversible yield stress evolution in cement-based pastes during hydration
文献类型：期刊论文
| 作者 | Yin, Xiuliang3; Wu, Zhijun1,3; Weng, Lei3; Xu, Xiangyu3,4; Zhou, Yuan2; Liu, Quansheng1,3 |
| 刊名 | CEMENT AND CONCRETE RESEARCH
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 180页码:14 |
| 关键词 | Yield stress Cement-based paste Microstructure Hydration C -S -H bridge Interparticle interactions |
| ISSN号 | 0008-8846 |
| DOI | 10.1016/j.cemconres.2024.107503 |
| 英文摘要 | Investigating workability loss in cement-based pastes during hydration, primarily marked by an irreversible yield stress increase, is crucial for cement-based materials application and development. This paper presents a model for quantifying the irreversible yield stress evolution by incorporating microstructural changes involving physical, chemical, and physicochemical effects. By systematically integrating solid volume and cement interparticle forces, including van der Waals forces and ionic correlation forces from C -S -H bridges, the model is formulated and then validated against experimental results. The relative contribution of interparticle forces and solid volume, as well as polycarboxylate (PCE) superplasticizers impact on yield stress is explored. The results indicate the model effectively captures microstructural changes and predicts the yield stress increase predominantly driven by interparticle forces. Notably, the PCE superplasticizer dosage significantly reduces yield stress, potentially to 0 Pa at saturation plateau. This study provides a comprehensive, quantitative understanding of irreversible yield stress evolution in cement-based paste. |
| 资助项目 | National Natural Science Foundation of China[52278412] ; National Natural Science Foundation of China[42077246] ; National Natural Science Foundation of China[U22A20234] ; Innovation Group Project of Hubei Provincial Natural Science Foundation[2023AFA003] ; Fundamental Research Funds for the Central Universities[2042022kf1055] ; Fundamental Research Funds for the Central Universities[2042023kfyq03] ; Guangdong Basic and Applied Basic Research Foundation[2021A1515110304] |
| WOS研究方向 | Construction & Building Technology ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001229122700001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41377]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wu, Zhijun |
| 作者单位 | 1.Wuhan Univ, State Key Lab Water Resources Hydropower Engn Sci, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China 3.Wuhan Univ, Sch Civil Engn, Key Lab Safety Geotech & Struct Engn Hubei Prov, Wuhan 430072, Peoples R China 4.Wuhan Univ, Shenzhen Res Inst, Shenzhen 518057, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Xiuliang,Wu, Zhijun,Weng, Lei,et al. A microstructure-based model for quantifying irreversible yield stress evolution in cement-based pastes during hydration[J]. CEMENT AND CONCRETE RESEARCH,2024,180:14. |
| APA | Yin, Xiuliang,Wu, Zhijun,Weng, Lei,Xu, Xiangyu,Zhou, Yuan,&Liu, Quansheng.(2024).A microstructure-based model for quantifying irreversible yield stress evolution in cement-based pastes during hydration.CEMENT AND CONCRETE RESEARCH,180,14. |
| MLA | Yin, Xiuliang,et al."A microstructure-based model for quantifying irreversible yield stress evolution in cement-based pastes during hydration".CEMENT AND CONCRETE RESEARCH 180(2024):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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