The coupling effects of freeze-thaw cycles and salinization due to snowfall on the rammed earth used in historical freeze-thaw cycles relics in northwest China

doi:10.1016/j.coldregions.2019.01.016

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	The coupling effects of freeze-thaw cycles and salinization due to snowfall on the rammed earth used in historical freeze-thaw cycles relics in northwest China
	Cui, Kai 1,2,3; Wu, Guopeng 1,2,3; Du, Yumin 2; An, Xinyue 1; Wang, Zelin 1
刊名	COLD REGIONS SCIENCE AND TECHNOLOGY
	2019-04
卷号	160 页码:288-299
关键词	Freeze-thaw cycle Salinization Rammed earth Pore distribution Regression analysis
ISSN号	0165-232X
DOI	10.1016/j.coldregions.2019.01.016
英文摘要	Rammed earth, a kind of building materials used worldwide because of its straightforward manufacture and low cost, is still used in the construction industry today. Many rammed earth architectural relics are preserved in the arid and semi-arid areas in northwest China. In this area, the winter snowfall process is generally long and may work to degrade the physical and mechanical properties of rammed earth, destroying these relics. Therefore, to protect rammed earth sites, it is very important to understand the mechanisms governing rammed earth deterioration during snowfall. Using real-time monitoring and soluble salt testing of the temperature and water content of the rammed earth at three representative sites in the north-west region, we found that snowfall leads to varying degrees of freeze-thaw cycle and salinization coupling that degrade rammed earth structures. Wind erosion, disintegration, shear and mercury intrusion experiments using remoulded rammed earth samples were performed based on the monitoring results and incorporated different types and concentrations of soluble salts; three freeze-thaw cycles were applied to explore the macro and micro changes in the wind erosion modulus, disintegration speed, cohesion, internal friction angle and pore size of the rammed earth samples. Finally, the joint analysis of the monitoring results, macroscopic property indices and microscopic property indices revealed the mechanisms of rammed earth degradation due to the observed coupling effect.
资助项目	National Natural Science Foundation of China[41562015] ; National Natural Science Foundation of China[52108245]
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000461595800027
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31999]
专题	土木工程学院
通讯作者	Wu, Guopeng
作者单位	1.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat, Dept Civil Engn, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ, Key Lab Disaster & Environm Mech Western China, Minist Educ, Tianshui Rd 222, Lanzhou 730000, Gansu, Peoples R China 3.Lanzhou Univ Technol, Western Ctr Disaster Mitigat, Civil Engn Dept, Minist Educ, Langongping Rd 287, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Cui, Kai,Wu, Guopeng,Du, Yumin,et al. The coupling effects of freeze-thaw cycles and salinization due to snowfall on the rammed earth used in historical freeze-thaw cycles relics in northwest China[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2019,160:288-299.
APA	Cui, Kai,Wu, Guopeng,Du, Yumin,An, Xinyue,&Wang, Zelin.(2019).The coupling effects of freeze-thaw cycles and salinization due to snowfall on the rammed earth used in historical freeze-thaw cycles relics in northwest China.COLD REGIONS SCIENCE AND TECHNOLOGY,160,288-299.
MLA	Cui, Kai,et al."The coupling effects of freeze-thaw cycles and salinization due to snowfall on the rammed earth used in historical freeze-thaw cycles relics in northwest China".COLD REGIONS SCIENCE AND TECHNOLOGY 160(2019):288-299.