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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
Source PublicationSOIL MECHANICS AND FOUNDATION ENGINEERING
ISSN0038-0741
EISSN1573-9279
Volume55Issue:5Pages:352-357
SubtypeArticle
Contribution Rank1
AbstractIn 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.
Keywordnano-silica Unconfined Compressive Strength Frost Heaving Characteristics
DOI10.1007/s11204-018-9548-7
Indexed BySCI
Language英语
Quartile4区
Funding ProjectWest 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]
TOP
WOS Research AreaEngineering
WOS SubjectEngineering, Geological
WOS IDWOS:000452670100010
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/24718
Collection山地灾害与地表过程重点实验室
Corresponding AuthorHu, Kai
Affiliation1.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.
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