干旱区生态环境知识资源中心(Arid): Investigation of the Impacts of Nano-clay on the Collapse Potential and Geotechnical Properties of Gypseous Soils

Arid

	Investigation of the Impacts of Nano-clay on the Collapse Potential and Geotechnical Properties of Gypseous Soils
	Karkush, Mahdi O.; Al-Murshedi, Alaa D.; Karim, Hussein H.
通讯作者	Karkush, MO
来源期刊	JORDAN JOURNAL OF CIVIL ENGINEERING
ISSN	1993-0461
EISSN	2225-157X
出版年	2020
卷号	14 期号:4 页码:537-547
英文摘要	Problematic soils, such as gypseous soils, have complex and irregular behavior, and are concentrated mainly in the dry and semi-dry regions in the world. In Iraq, gypseous soils cover from 30% to 35% of its total area in the west desert and extend to the southern parts of Iraq. Such soils experience sudden collapse upon wetting. Soil stabilization is an important technique to improve the undesired geotechnical properties of soils. In this study, laboratory tests were conducted on two gypseous soils collected from two different sites in Iraq: Al-Najaf city (42% gypsum content) and Al-Samawa city (54% gypsum content). Three percentages (1, 2 and 4%) of nano-clay (NC) were used to improve the chemical and geotechnical properties of the studied soils. Chemical and physical classification tests were performed on the treated soil samples. Also, collapsibility and shear strength tests were conducted on the soil samples in dry and soaking conditions. The test results indicated that mixing nano-clay with gypseous soils affected the consolidation behavior and hydraulic conductivity of the soils regardless of the percentage of nano-clay. The collapse potential of soil samples mixed with 4% of nanoclay decreased by 77%. In general, using 4% of nano-clay gives the best improvement of chemical and geotechnical properties of gypseous soils.
英文关键词	Nano-clay Gypseous soil Collapse Shear strength Soaking
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000576834400007
WOS关键词	FLY-ASH ; STRENGTH ; NANO-SIO2 ; LIME ; NANOMATERIALS
WOS类目	Engineering, Civil
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334655
作者单位	[Karkush, Mahdi O.] Univ Baghdad, Civil Engn Dept, Baghdad, Iraq; [Al-Murshedi, Alaa D.] Univ Baghdad, Dept Geol, Baghdad, Iraq; [Karim, Hussein H.] Univ Technol Baghdad, Civil Engn Dept, Baghdad, Iraq
推荐引用方式 GB/T 7714	Karkush, Mahdi O.,Al-Murshedi, Alaa D.,Karim, Hussein H.. Investigation of the Impacts of Nano-clay on the Collapse Potential and Geotechnical Properties of Gypseous Soils[J],2020,14(4):537-547.
APA	Karkush, Mahdi O.,Al-Murshedi, Alaa D.,&Karim, Hussein H..(2020).Investigation of the Impacts of Nano-clay on the Collapse Potential and Geotechnical Properties of Gypseous Soils.JORDAN JOURNAL OF CIVIL ENGINEERING,14(4),537-547.
MLA	Karkush, Mahdi O.,et al."Investigation of the Impacts of Nano-clay on the Collapse Potential and Geotechnical Properties of Gypseous Soils".JORDAN JOURNAL OF CIVIL ENGINEERING 14.4(2020):537-547.