干旱区生态环境知识资源中心(Arid): Effect of Desert Sand on the Mechanical Properties of Desert Sand Concrete (DSC) after Elevated Temperature

Arid

DOI	10.1155/2021/3617552
	Effect of Desert Sand on the Mechanical Properties of Desert Sand Concrete (DSC) after Elevated Temperature
	Liu, Yijiang; Yang, Weiwu; Chen, Xiaolong; Liu, Haifeng; Yan, Ningna
通讯作者	Liu, HF (corresponding author), Ningxia Univ, Coll Civil & Hydraul Engn, Yinchuan 750021, Ningxia, Peoples R China.
来源期刊	ADVANCES IN CIVIL ENGINEERING
ISSN	1687-8086
EISSN	1687-8094
出版年	2021
卷号	2021
英文摘要	Building fires and shortage of medium sand resources have become two major issues in building domain. Desert sand was used to produce desert sand concrete (DSC), which was suitable for engineering utility. The mechanical properties tests of DSC with different desert sand replacement ratio (DSRR) were carried out after elevated temperature. The effects of elevated temperature and DSRR on DSC mechanical properties were analyzed. DSC microstructure was investigated by SEM and XRD. Research studies' results showed that the relative compressive strength increased gradually with increasing temperature. The maximum value appeared at 200 degrees C-300 degrees C, and it began to decrease at 500 degrees C. Compared with room temperature, the compressive strength at 700 degrees C was about 70% of that at room temperature. Relative splitting tensile strength increased first and then decreased, and the value reached the maximum at 100 degrees C. DSC relative flexural strength decreased with the temperature. Relative compressive strength, splitting tensile strength, and flexural strength of DSC enhanced first and then decreased with DSRR, and the maximum values were obtained with 40% DSRR. Based on the regressive analysis, the relative compressive strength was a quadratic polynomial with relative porosity. Relative splitting tensile strength and relative flexural strength were linear with relative porosity. Research results can provide the technical support for DSC engineering application and postfire assessment.
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000675824500001
WOS关键词	STRENGTH ; PERFORMANCE
WOS类目	Construction & Building Technology ; Engineering, Civil
WOS研究方向	Construction & Building Technology ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362323
作者单位	[Liu, Yijiang; Yang, Weiwu; Chen, Xiaolong; Liu, Haifeng; Yan, Ningna] Ningxia Univ, Coll Civil & Hydraul Engn, Yinchuan 750021, Ningxia, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yijiang,Yang, Weiwu,Chen, Xiaolong,et al. Effect of Desert Sand on the Mechanical Properties of Desert Sand Concrete (DSC) after Elevated Temperature[J],2021,2021.
APA	Liu, Yijiang,Yang, Weiwu,Chen, Xiaolong,Liu, Haifeng,&Yan, Ningna.(2021).Effect of Desert Sand on the Mechanical Properties of Desert Sand Concrete (DSC) after Elevated Temperature.ADVANCES IN CIVIL ENGINEERING,2021.
MLA	Liu, Yijiang,et al."Effect of Desert Sand on the Mechanical Properties of Desert Sand Concrete (DSC) after Elevated Temperature".ADVANCES IN CIVIL ENGINEERING 2021(2021).