Strength and Pore Structure Development of High-Plasticity Clay Treated with MK-Blended Cement
文献类型：期刊论文
| 作者 | Guo, Qian; Wei, Mingli; Xue, Haochen; Gao, Changhui; Du, Guangyin |
| 刊名 | ADVANCES IN CIVIL ENGINEERING
 |
| 出版日期 | 2019 |
| 卷号 | 2019期号:-页码:- |
| ISSN号 | 1687-8086 |
| DOI | 10.1155/2019/2527892 |
| 英文摘要 | This paper focuses on the strength development and pore structure evolution of high-plasticity clay mixtures treated with metakaolin- (MK-) blended ordinary Portland cement (OPC). The unconfined compressive strength (f(cu)) of treated soil mixtures is measured to study the effect of MK replacement. The microstructural study is carried out by mercury intrusion porosimetry (MIP), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The results showed that the MK replacement led to the decrease of unconfined compressive strength of OPC-treated soil mixture cured for 28days, but the influence on 7days strength was negligible. However, the MK addition also enhanced the unconfined compressive strength significantly. The MK addition provided more cementitious products by secondary hydration and pozzolanic reaction, which would give rise to a notable filling effect by turning the large pores (1 to 10 mu m) into smaller ones (0.1 to 1 mu m). However, the MK replacement led to a decrease of cementitious products due to the lack of calcium hydroxide (CH) in soil mixture, and thus the effect on pore structure refinement was reduced. Nevertheless, the presence of MK enhanced the unconfined compressive strength cured for 7days, due to the high reactivity of MK with CH. |
| WOS研究方向 | Construction & Building Technology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000483265000001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/14914]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Southeast Univ, Inst Geotech Engn, Jiangsu Key Lab Urban Underground Engn & Environm, Nanjing 211189, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China; 3.Inst Commun Planning Design & Res, Hangzhou 310058, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Qian,Wei, Mingli,Xue, Haochen,et al. Strength and Pore Structure Development of High-Plasticity Clay Treated with MK-Blended Cement[J]. ADVANCES IN CIVIL ENGINEERING,2019,2019(-):-. |
| APA | Guo, Qian,Wei, Mingli,Xue, Haochen,Gao, Changhui,&Du, Guangyin.(2019).Strength and Pore Structure Development of High-Plasticity Clay Treated with MK-Blended Cement.ADVANCES IN CIVIL ENGINEERING,2019(-),-. |
| MLA | Guo, Qian,et al."Strength and Pore Structure Development of High-Plasticity Clay Treated with MK-Blended Cement".ADVANCES IN CIVIL ENGINEERING 2019.-(2019):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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