KMS Institute of Mountain Hazards and Environment,CAS
| Laboratory Investigation of the Effect of Nano-Silica on Unconfined Compressive Strength and Frost Heaving Characteristics of Silty Clay | |
Hu, Kai1,2 ; Chen, Xiaoqing1; Chen, Jiangang1; Ren, Xiaochuan3
| |
| 2018-11-01 | |
| Source Publication | SOIL MECHANICS AND FOUNDATION ENGINEERING
 |
| ISSN | 0038-0741 |
| Volume | 55Issue:5Pages:352-357 |
| Subtype | Article |
| Contribution Rank | 1 |
| Abstract | In order to investigate the effect of nano-silica on the unconfined compressive strength and frost heaving characteristics of silty clay, a series of indoor tests of unconfined compressive strength, frost heaving, and mercury intrusion porosimetry (MIP) was done on silty clay with different nano-silica content. The unconfined compressive strength of silty clay increased with increases in nano-silica content, and increased by 6.65 times when the nano-silica content was 5.0%. However, the frost heaving displacement decreased with increases in the nano-silica content. The results of MIP tests illustrated that the volume and number of large pores decreased, and the volume and numbers of small pores increased with increases in the nano-silica content. An increase in the nano-silica content increased the porosity and decreased the average pore diameter. The formation of viscous gel by addition of nano-silica into silty clay enhanced the bonding and filled the gaps between particles of silty clay and blocked the migration of water in the soil. The microscopic pore structure of the sample was generally uniform with increasing nano-silica content, which resulted in an increase in unconfined compressive strength and a decrease in frost heaving displacement. |
| Keyword | nano-silica Unconfined Compressive Strength Frost Heaving Characteristics |
| DOI | 10.1007/s11204-018-9548-7 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | West Light Foundation of Chinese Academy of Sciences ; Science and Technology Service Network Initiative[KFJ-EW-STS-094] ; Key National Key Technology Research and Development Program of China[2014BAL05B01] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Geological |
| WOS ID | WOS:000452670100010 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/24718 |
| Collection | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author | Hu, Kai |
| Affiliation | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China; 3.Lanzhou Univ, Lanzhou, Gansu, Peoples R China |
| First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation GB/T 7714 | Hu, Kai,Chen, Xiaoqing,Chen, Jiangang,et al. Laboratory Investigation of the Effect of Nano-Silica on Unconfined Compressive Strength and Frost Heaving Characteristics of Silty Clay[J]. SOIL MECHANICS AND FOUNDATION ENGINEERING,2018,55(5):352-357. |
| APA | Hu, Kai,Chen, Xiaoqing,Chen, Jiangang,&Ren, Xiaochuan.(2018).Laboratory Investigation of the Effect of Nano-Silica on Unconfined Compressive Strength and Frost Heaving Characteristics of Silty Clay.SOIL MECHANICS AND FOUNDATION ENGINEERING,55(5),352-357. |
| MLA | Hu, Kai,et al."Laboratory Investigation of the Effect of Nano-Silica on Unconfined Compressive Strength and Frost Heaving Characteristics of Silty Clay".SOIL MECHANICS AND FOUNDATION ENGINEERING 55.5(2018):352-357. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Laboratory Investiga（311KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment