Determining the water content and void ratio of cement-treated dredged soil from the hydration degree of cement
文献类型：期刊论文
| 作者 | He, Xingxing2,4; Chen, Yijun2,3,5; Tan, Xun2,4; Wang, Shiquan1; Liu, Lei2,3,5 |
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2020-12-20 |
| 卷号 | 279期号:-页码:11 |
| 关键词 | Dredged soil Cement-treatment Water content Void ratio Evolution model Hydration property |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2020.105892 |
| 英文摘要 | Many important geotechnical and engineering geology properties of cement-treated dredged soil (CDS) depend on its the water content and void ratio (WC&VR). Based on the hydration model of cement, this study proposes time-evolution models of WC&VR in CDS, and verifies their reliability by fitting to experimental data. The two fitting parameters tau and beta in the models depended only on the type of soil. Increasing the cement content (A(w)) and initial water content (w(0)) of the dredged soil accelerated the decrease rate of WC&VR with curing time, but barely affected the duration of each stage in the WC&VR evolution curves. Next, the specific evolution laws and mechanisms of WC&VR in the curing process were fully discussed. The changes in WC&VR were consistent, and both trends exhibited typical four-stage characteristics: an initial steady stage, an accelerated descent stage, a decelerated descent stage, and a final steady stage. In microstructural analyses by X-ray diffraction, scanning electron microscopy, and thermo-gravimetric analysis, the evolution of WC&VR was found to be mainly related to the formation of cement hydration products, and the evolution characteristics well accorded with the hydration properties of cement. |
| 资助项目 | National Science Foundation for Distinguished Young Scholars[51625903] ; National Natural Science Foundation of China/Hong Kong Research Grants Council Joint Research Scheme[51861165104] ; Youth Innovation Promotion Association CAS[2017376] ; Yixing Taodu Talent program of Technology Innovation and Entrepreneurship leading Talent Project[CXTD201601C] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000597310200032 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25369]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Suzhou Univ, Sch Resources & Civil Engn, Suzhou 234000, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Hubei Prov Key Lab Contaminated Sludge & Soil Sci, Wuhan 430071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Xingxing,Chen, Yijun,Tan, Xun,et al. Determining the water content and void ratio of cement-treated dredged soil from the hydration degree of cement[J]. ENGINEERING GEOLOGY,2020,279(-):11. |
| APA | He, Xingxing,Chen, Yijun,Tan, Xun,Wang, Shiquan,&Liu, Lei.(2020).Determining the water content and void ratio of cement-treated dredged soil from the hydration degree of cement.ENGINEERING GEOLOGY,279(-),11. |
| MLA | He, Xingxing,et al."Determining the water content and void ratio of cement-treated dredged soil from the hydration degree of cement".ENGINEERING GEOLOGY 279.-(2020):11. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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