干旱区生态环境知识资源中心(Arid): Effect of desert sand on the uniaxial compressive properties of mortar after elevated temperature

Arid

DOI	10.1016/j.pce.2020.102962
	Effect of desert sand on the uniaxial compressive properties of mortar after elevated temperature
	Zhang, Qian; Liu, Qiang; Liu, Haifeng; Che, Jialing; Chen, Xiaolong; Doh, Shu Ing
通讯作者	Liu, HF (corresponding author), Ningxia Univ, Coll Civil & Hydraul Engn, Yinchuan 750021, Ningxia, Peoples R China.
来源期刊	PHYSICS AND CHEMISTRY OF THE EARTH
ISSN	1474-7065
EISSN	1873-5193
出版年	2021
卷号	121
英文摘要	In China, medium sand is widely used for engineering applications. However, over quarrying of medium sand to meet the demand for urbanization has led to the environmental issue. The arid area of Northwest China, which has high concentration of desert could provide sufficient supply of desert sand for engineering applications. In this paper, desert sand was used to replace medium sand to produce desert sand mortar (DSM). The uniaxial compression test was performed on the DSM undergoing elevated temperature treatment, and the stress-strain curves of the DSM after different temperatures were obtained. The effects of temperature and desert sand replacement rate (DSR) on the peak stress, peak strain, elastic modulus, Poisson's ratio, and mass loss rate of DSM was analysed. The test results showed that with the increase of DSR, the peak stress and elastic modulus of DSM first increased and then decreased. As the temperature increased, the Poisson's ratio of the DSM decreased first and then increased. Based on regression analysis, the relationships between peak stress, peak strain, elastic modulus, Poisson's ratio of DSM, temperature, and DSR were obtained. At the same time, a one-parameter compression constitutive equation of DSM after the elevated temperature was established. Since the equation has only one parameter, the calculation process was greatly simplified based on ensuring the calculation results. The model was in high agreement with the test results. This equation can provide a reference for further studies in the field of mechanical properties of DSM and desert sand concrete (DSC) after elevated temperatures.
英文关键词	Constitutive equation Desert sand mortar Elevated temperature Stress-strain curve Uniaxial compression
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000620293200002
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351310
作者单位	[Zhang, Qian; Liu, Qiang; Liu, Haifeng; Che, Jialing; Chen, Xiaolong] Ningxia Univ, Coll Civil & Hydraul Engn, Yinchuan 750021, Ningxia, Peoples R China; [Doh, Shu Ing] Univ Malaysia Pahang, Coll Engn, Gambang 26300, Kuantan Pahang, Malaysia
推荐引用方式 GB/T 7714	Zhang, Qian,Liu, Qiang,Liu, Haifeng,et al. Effect of desert sand on the uniaxial compressive properties of mortar after elevated temperature[J],2021,121.
APA	Zhang, Qian,Liu, Qiang,Liu, Haifeng,Che, Jialing,Chen, Xiaolong,&Doh, Shu Ing.(2021).Effect of desert sand on the uniaxial compressive properties of mortar after elevated temperature.PHYSICS AND CHEMISTRY OF THE EARTH,121.
MLA	Zhang, Qian,et al."Effect of desert sand on the uniaxial compressive properties of mortar after elevated temperature".PHYSICS AND CHEMISTRY OF THE EARTH 121(2021).