干旱区生态环境知识资源中心(Arid): Effects of Suction and Drying-Wetting Cycles on Shearing Response of Adobe

Arid

DOI	10.1061/(ASCE)MT.1943-5533.0003816
	Effects of Suction and Drying-Wetting Cycles on Shearing Response of Adobe
	Monghassem, Mohsen; Ajdari, Mohsen; Binesh, Seyyed Mohammad; Vahedifard, Farshid
通讯作者	Ajdari, M (corresponding author), Fasa Univ, Fac Engn, Dept Civil Engn, Fasa 7461686131, Iran.
来源期刊	JOURNAL OF MATERIALS IN CIVIL ENGINEERING
ISSN	0899-1561
EISSN	1943-5533
出版年	2021
卷号	33 期号:7
英文摘要	Adobe has been extensively used as a viable construction material in various hot and arid climatic regions throughout the world for several centuries. Adobe bricks, primarily made out of clay, remain in an unsaturated state for the majority of their life span. These unsaturated bricks are vulnerable to weathering, erosion, cracking, and strength degradation due to changes in moisture and drying-wetting cycles imposed by climatic events and seasonal changes. However, limited information exists in the literature regarding the effect of suction and degree of saturation on the mechanical response of unsaturated adobe. The main objective of this study was to experimentally examine the effect of suction on the shear strength and dilatancy of the adobe used for the repair of a 1,500-year-old adobe castle, the Izad Khast Castle, in Central Iran. We tested the index, physical, mineralogical, and microstructural characteristics of the adobe. After determining the drying and wetting paths of the soil water retention curve (SWRC), we built and employed an osmotic direct shear device to evaluate the shear strength extensively and dilatancy of the adobe under various matric suctions (0, 200, 400, and 800 kPa) and vertical stresses (39, 66, and 122 kPa) without and with the application of drying-wetting cycles. The tested adobe exhibited a significant suction hardening with a brittle behavior along with the shear-induced dilation. Increasing suction prompted a notable rise in the effective angle of friction and a linear increase in dilatancy of the adobe. Applying drying-wetting cycles led to a less brittle response accompanied by a decrease in the peak shear strength. The findings offer new insight into the mechanical behavior of unsaturated adobe, which can contribute toward the preservation and maintenance of historical and contemporary adobe structures.
英文关键词	Unsaturated soils Adobe Shear strength Dilatancy Suction Dilation angle
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000659220300013
WOS关键词	BOUNDING SURFACE PLASTICITY ; HYDROMECHANICAL BEHAVIOR ; STRENGTH ; SOIL ; MODEL ; DILATANCY ; PREDICTION ; PARAMETERS ; RESPECT
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368667
作者单位	[Monghassem, Mohsen; Binesh, Seyyed Mohammad] Shiraz Univ Technol, Fac Civil & Environm Engn, Shiraz 7155713876, Iran; [Ajdari, Mohsen] Fasa Univ, Fac Engn, Dept Civil Engn, Fasa 7461686131, Iran; [Vahedifard, Farshid] Mississippi State Univ, Richard A Rula Sch Civil & Environm Engn, Mississippi State, MS 39762 USA
推荐引用方式 GB/T 7714	Monghassem, Mohsen,Ajdari, Mohsen,Binesh, Seyyed Mohammad,et al. Effects of Suction and Drying-Wetting Cycles on Shearing Response of Adobe[J],2021,33(7).
APA	Monghassem, Mohsen,Ajdari, Mohsen,Binesh, Seyyed Mohammad,&Vahedifard, Farshid.(2021).Effects of Suction and Drying-Wetting Cycles on Shearing Response of Adobe.JOURNAL OF MATERIALS IN CIVIL ENGINEERING,33(7).
MLA	Monghassem, Mohsen,et al."Effects of Suction and Drying-Wetting Cycles on Shearing Response of Adobe".JOURNAL OF MATERIALS IN CIVIL ENGINEERING 33.7(2021).