An experimental study of the measuring hydration film thickness of clay particles with atomic force microscope probe

GUO Yongchun; QU Zhihui; XU Fuzhou; ZHOU Xianggui

doi:10.16030/j.cnki.issn.1000-3665.202012060

2021 Vol. 48, No. 6

Article Contents

Article navigation > Hydrogeology & Engineering Geology > 2021 > 48(6): 105-112

Next Article Previous Article

GUO Yongchun, QU Zhihui, XU Fuzhou, ZHOU Xianggui. An experimental study of the measuring hydration film thickness of clay particles with atomic force microscope probe[J]. Hydrogeology & Engineering Geology, 2021, 48(6): 105-112. doi: 10.16030/j.cnki.issn.1000-3665.202012060

Citation:

GUO Yongchun, QU Zhihui, XU Fuzhou, ZHOU Xianggui. An experimental study of the measuring hydration film thickness of clay particles with atomic force microscope probe[J]. Hydrogeology & Engineering Geology, 2021, 48(6): 105-112. doi: 10.16030/j.cnki.issn.1000-3665.202012060

An experimental study of the measuring hydration film thickness of clay particles with atomic force microscope probe

1.
Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, Sichuan　610031, China
2.
China Railway Water Conservancy and Hydropower Planning and Design Group Co. Ltd., Nanchang, Jiangxi　330029, China
3.
Guangzhou Holding Company of the China Railway Siyuan Survey and Design Group Co. Ltd., Guangzhou, Guangdong　510600, China

Received Date: 27 December 2020

Revised Date: 02 April 2021

Publish Date: 15 November 2021

Abstract

Abstract

The thickness of hydration film of clay particles is the theoretical basis of swelling mechanism of argillaceous expansive rock and soil. There are abundant data on the measurement of clay particle hydration film thickness, but the study of the measurement of clay particle hydration film thickness by atomic force microscopy is relatively rare, and the test method is not perfect. Based on the three-layer hydration membrane structure model and atomic force microscope test technology, through the test and research on montmorillonite powder, mudstone powder and mudstone rock slice, this paper puts forward the measurement method of the thickness of the hydration film, the preparation method of powder sample and rock sample, and the statistical processing method of the test data. The variation rules of the free water section, weakly bound water section, strong bound water section and clay particle section of the hydration film thickness test curve are summarized. Through comparative analyses with the existing research results, the rationality and feasibility of the testing the thickness of the hydration film of clay particles by the atomic force microscope is demonstrated. Combined with engineering practice, the engineering significance and theoretical value of the quantitatively obtaining the hydration film thickness in understanding the swelling mechanism of the argillaceous expansive rock and soil are discussed.
- hydration film thickness /
- clay particle /
- atomic force microscope /
- penetration test method /
- argillaceous expansive rock and soil

FullText(HTML)

References

[1]	郭永春, 陈伟乐, 赵海涛. 膨胀土吸水过程的试验研究[J]. 水文地质工程地质,2016,43(4):108 − 112. [GUO Yongchun, CHEN Weile, ZHAO Haitao. Experimental research of water-uptake process of the expansive soil[J]. Hydrogeology & Engineering Geology,2016,43(4):108 − 112. (in Chinese with English abstract) Google Scholar
[2]	[美]米切尔. 岩土工程土性分析原理[M]. 高国瑞, 等, 译. 南京: 南京工学院出版社, 1988: 105-116. Google Scholar Mitchell J K. Fundamentals of soil behavior[M].GAO Guorui, et al, trs. Nanjing: Southeast University Press, 1988: 105-116. (in Chinese with English abstract) Google Scholar
[3]	[苏]奥西波夫. 粘土类土和岩石的强度与变形性能的本质[M]. 李生林, 张之一, 译. 北京: 地质出版社, 1985: 152-168. Google Scholar В. И. Осипов. The essence of strength and deformation properties of clay-like soils and rocks[M]. LI Shenglin, ZHANG Zhiyi, trs. Beijing: Geological Publishing House, 1985: 152-168. (in Chinese) Google Scholar
[4]	李生林, 秦素娟, 薄遵昭, 等. 中国膨胀土工程地质研究[M]. 南京: 江苏科学技术出版社, 1992. Google Scholar LI Shenglin, QIN Sujuan, BO Zhunzhao, et al. Studies on the engineering geology of expansive soils in China[M]. Nanjing: Phoenix Science Press, 1992. (in Chinese) Google Scholar
[5]	谭罗荣, 孔令伟. 特殊岩土工程土质学[M]. 北京: 科学出版社, 2006. Google Scholar TAN Luorong, KONG Lingwei. Soil science of special geotechnical engineering[M]. Beijing: Science Press, 2006. (in Chinese) Google Scholar
[6]	高国瑞. 近代土质学[M]. 2版. 北京: 科学出版社, 2013. Google Scholar GAO Guorui. Neoteric soil geotechnology[M]. Beijing: Science Press, 2013. (in Chinese) Google Scholar
[7]	赵梦怡. 膨胀土膨胀量理论计算方法及在土坡工程中的应用[D]. 成都: 西南交通大学, 2019. Google Scholar ZHOU Mengyi. Theoretical calculation method of swelling capacity of expansive soil and its application in slope engineering[D]. Chengdu: Southwest Jiaotong University, 2019. (in Chinese with English abstract) Google Scholar
[8]	DROST-HANSEN W. Effects of vicinal water on colloidal stability and sedimentation processes[J]. Journal of Colloid and Interface Science,1977,58(2):251 − 262. doi: 10.1016/0021-9797(77)90142-4 CrossRef Google Scholar
[9]	吴伦. 基于原子力显微镜的煤粒表面水化膜和颗粒间相互作用力研究[D]. 徐州: 中国矿业大学, 2015. Google Scholar WU Lun. Study on hydration film on coal surface and interaction force between particles based on AFM[D]. Xuzhou, China University of Mining and Technology, 2015. (in Chinese with English abstract) Google Scholar