Micro- and nano- bentonite to improve the strength of clayey sand as a nano soil-improvement technique

被引:8
|
作者
Cheraghalikhani, Mohadeseh [1 ]
Niroumand, Hamed [2 ]
Balachowski, Lech [2 ]
机构
[1] Buein Zahra Tech Univ, Fac Engn, Dept Civil Engn, Qazvin, Iran
[2] Gdansk Univ Technol, Fac Civil & Environm Engn, Dept Geotech & Hydraul Engn, Gdansk, Poland
关键词
STABILIZATION;
D O I
10.1038/s41598-023-37936-x
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Nano-additives results in the formation of nano-cementation (NC). This process is recently used to improve the durability of various building materials. NC used to improve the strength of untreated soil materials, also known as nano soil-improvement (NSI). In few years, the role of nano-additives in various types of soils were developed. In this research, the role of micro- and nano- size of bentonite as soil stabilizer was evaluated as first few research to improve geotechnical properties of soils. Nano-additives prepared by micro- and nano- sizes of bentonite were blend with four formulations. These formulations of micro- and nano- additives at concentrations of 0, 1, 2, and 3%, namely 0% Micro-Bentonite, 1% Micro-Bentonite, 2% Micro-Bentonite, 3% Micro-Bentonite, 0% Nano-Bentonite, 1% Nano-Bentonite, 2% Nano-Bentonite, and 3% Nano-Bentonite, respectively. These formulations of micro- and nano- additives were separately added to soil. Specimens with 3% nano-bentonite showed significant improvement in unconfined compressive strength (UCS) of soil that was more than 2.3-times higher than control specimen in 7-d curing time. Also the performance of micro-bentonite resulted in improvement in UCS of soil that was more than 1.1-times higher than control specimen at 7-d curing time. The secant modulus at 50% of peak stress (E50) of the samples treated with micro- and nano- additives increased in comparison to untreated specimens. Further, X-ray fluorescence (XRF), scanning electron microscopy, and X-ray diffraction analyses characterized micro- and nano- structures of soil specimens, and showed the performance of nano-additives in improving strength of soils. Results show that nano-bentonite as a type of nano-additives is an effective means of increasing the strength of soils. This research shows the significant of nano-bentonite in soil improvement, as a NSI technique.
引用
收藏
页数:12
相关论文
共 50 条
  • [21] Microstructure and thermal diffusivity of micro- and nano- sized YSZ
    Moskal, Grzegorz
    THERMEC 2009, PTS 1-4, 2010, 638-642 : 900 - 905
  • [22] Nanogenerators as nano-/micro-power sourcesNanogenerators as nano-/micro- power sourcesM. Kim et al.
    Miso Kim
    Zhen Wen
    Christian Falconi
    Dukhyun Choi
    MRS Bulletin, 2025, 50 (4) : 439 - 449
  • [23] Environmental Processes and Ecological Effects of Micro- and Nano- Plastics in Soil-Plant Systems
    Yang, Jie
    Tu, Chen
    Yuan, Xianzheng
    Luo, Yongming
    PROGRESS IN CHEMISTRY, 2025, 37 (01) : 89 - 102
  • [24] On the Etching Revolution of Electrochemical Micro-(Nano-) Fabrication Technique-Its Limit and Solution
    Zu Yanbing
    Xie Lei
    Luo Jin
    Mao Bingwei
    Tian Zhaowu
    ACTA PHYSICO-CHIMICA SINICA, 1997, 13 (11) : 965 - 968
  • [25] SOME ASPECTS CONCERNING THE ISOLATION OF CELLULOSE MICRO- AND NANO- FIBERS
    Frone, Adriana N.
    Panaitescu, Denis M.
    Donescu, Dan
    UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE, 2011, 73 (02): : 133 - 152
  • [26] MICRO- TO NANO- BIOSENSORS AND ACTUATORS INTEGRATED FOR RESPONSIVE DELIVERY OF COUNTERMEASURES
    Peteu, Serban F.
    2010 INTERNATIONAL SEMICONDUCTOR CONFERENCE (CAS), VOLS 1 AND 2, 2010, : 179 - 190
  • [27] Cardiac multiscale bioimaging: from nano- through micro- to mesoscales
    Tolstik, Elen
    Lehnart, Stephan E.
    Soeller, Christian
    Lorenz, Kristina
    Sacconi, Leonardo
    TRENDS IN BIOTECHNOLOGY, 2024, 42 (02) : 212 - 227
  • [28] Earthquake Interevent Time Distribution for Induced Micro-, Nano-, and Picoseismicity
    Davidsen, Joern
    Kwiatek, Grzegorz
    PHYSICAL REVIEW LETTERS, 2013, 110 (06)
  • [29] Advancing Tissue Engineering: A Tale of Nano-, Micro-, and Macroscale Integration
    Leijten, Jeroen
    Rouwkema, Jeroen
    Zhang, Yu Shrike
    Nasajpour, Amir
    Dokmeci, Mehmet Remzi
    Khademhosseini, Ali
    SMALL, 2016, 12 (16) : 2130 - 2145
  • [30] Review of Low- Dimensional Semiconductor Micro- and Nano- Lasers
    Dong, Hongxing
    Chang, Hao
    Gao, Xinyu
    Liu, Liang
    Cheng, Haodong
    Li, Xinjie
    Yu, Ke
    CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG, 2024, 51 (11):