Swelling Behavior of Montmorillonites Noncolloidally Crosslinked with epsilon-Al-13

doi:10.2136/sssaj2016.05.0142

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	Swelling Behavior of Montmorillonites Noncolloidally Crosslinked with epsilon-Al-13
	Sun, Shiyong 2; Fang, Ran 1,3; Yao, Hailin 1; Liu, Liang 1,3
刊名	SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
	2016
卷号	80 期号:5 页码:1190-1196
ISSN号	0361-5995
DOI	10.2136/sssaj2016.05.0142
英文摘要	Studies concerning noncolloidally crosslinked montmorillonites (NCMs) are significant for the chemical treatment of expansive soil. In this study, NCMs with OH/Al molar ratios of 1.0, 1.5, 2.0, and 2.5 and Al/montmorillonite ratios of 0.1, 0.3, 0.5, 0.8, and 1.0 mmol g(-1) were prepared via AlCl3-NaOH reactions and subsequent Al-13-montmorillonite interactions. The resulting NCMs exhibited the characteristics of silt as well as significant expansion and mechanical property changes. The expansion properties of the NCM samples, including the free swelling ratio, swelling force, free expansion ratio, and expansion ratio under 50 kPa all decreased significantly. According to the X-ray diffraction data, the basal spacing of the NCM samples became relatively stable and slightly expanded after the drying and rewetting processes. Additionally, the cohesive force and shear strength of the NCM samples increased significantly after the crosslinking process. Furthermore, the X-ray fluorescence spectrometry results confirmed that the Al oxide content of the NCMs increased as the swelling properties decreased, indicating that primarily the Al-13 groups influenced the swelling behavior of the NCMs.
WOS研究方向	Agriculture
语种	英语
出版者	SOIL SCI SOC AMER
WOS记录号	WOS:000386463900007
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3926]
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.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Construct Sci & Technol Comm, Nansha Dev Zone 3.Univ Chinese Acad Sci ;
推荐引用方式 GB/T 7714	Sun, Shiyong,Fang, Ran,Yao, Hailin,et al. Swelling Behavior of Montmorillonites Noncolloidally Crosslinked with epsilon-Al-13[J]. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,2016,80(5):1190-1196.
APA	Sun, Shiyong,Fang, Ran,Yao, Hailin,&Liu, Liang.(2016).Swelling Behavior of Montmorillonites Noncolloidally Crosslinked with epsilon-Al-13.SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,80(5),1190-1196.
MLA	Sun, Shiyong,et al."Swelling Behavior of Montmorillonites Noncolloidally Crosslinked with epsilon-Al-13".SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 80.5(2016):1190-1196.