干旱区生态环境知识资源中心(Arid): Polymers for stabilisation of Wahiba dune sands, Oman

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DOI	10.1680/jgrim.17.00063
	Polymers for stabilisation of Wahiba dune sands, Oman
	Mohamedzein, Yahia; Al-Hashmi, Abdulaziz; Al-Abri, Aisha; Al-Shereiqi, Amira
通讯作者	Mohamedzein, Y
来源期刊	PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GROUND IMPROVEMENT
ISSN	1755-0750
EISSN	1755-0769
出版年	2019
卷号	172 期号:2 页码:76-84
英文摘要	Dune sands are problematic soils because they have low shear strength and are susceptible to collapse on wetting. In the work reported in this paper, polymers in different concentrations from 1 to 3% were used to improve the engineering properties of dune sands. The sand-polymer mixtures were allowed to cure for 7 to 28 d. Laboratory analyses such as compaction tests, unconfined compression tests, unconsolidated undrained (UU) triaxial tests, consolidated undrained triaxial tests, chemical analysis, X-ray diffraction (XRD) and scanning electron microscopy (SEM) were carried out to measure the engineering properties of the stabilised material. The results showed that the strength substantially increased with an increase in polymer content. For 3% polymer addition, the unconfined compressive strength (UCS) of the stabilised sand was about 4370 kPa. The UCS of a sand stabilised with 2% polymer was similar to that of sands stabilised with 12% cement and with 40% of cement-by-pass dust. The results of UU testing showed that the stabilised sand exhibited cohesion values of up to 990 kPa. The addition of polymer also increased the stiffness and the dilatant properties of the sand. The results of XRD and SEM indicated that the polymer filled the voids between the sand particles and thus improved the shear strength of the mixture.
英文关键词	granular materials materials technology shallow foundations
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000465099600003
WOS关键词	DESERT ; CEMENT ; STRENGTH ; SILT ; ASH
WOS类目	Engineering, Geological
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/2XILL650/333488
作者单位	[Mohamedzein, Yahia; Al-Hashmi, Abdulaziz; Al-Shereiqi, Amira] Sultan Qaboos Univ, Coll Engn, Al Khoud, Oman; [Al-Abri, Aisha] Oman Broadband, Muscat, Oman
推荐引用方式 GB/T 7714	Mohamedzein, Yahia,Al-Hashmi, Abdulaziz,Al-Abri, Aisha,et al. Polymers for stabilisation of Wahiba dune sands, Oman[J],2019,172(2):76-84.
APA	Mohamedzein, Yahia,Al-Hashmi, Abdulaziz,Al-Abri, Aisha,&Al-Shereiqi, Amira.(2019).Polymers for stabilisation of Wahiba dune sands, Oman.PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GROUND IMPROVEMENT,172(2),76-84.
MLA	Mohamedzein, Yahia,et al."Polymers for stabilisation of Wahiba dune sands, Oman".PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-GROUND IMPROVEMENT 172.2(2019):76-84.