干旱区生态环境知识资源中心(Arid): Durability Evaluation of Concrete in Cold and Arid Regions Based on Grey Relational Theory

Arid

DOI	10.1155/2022/6287810
	Durability Evaluation of Concrete in Cold and Arid Regions Based on Grey Relational Theory
	Gong, Li; Liang, Ying; Zhang, Bingzong; Gong, Xuelei; Yang, Yiqun
通讯作者	Liang, Y
来源期刊	ADVANCES IN CIVIL ENGINEERING
ISSN	1687-8086
EISSN	1687-8094
出版年	2022
卷号	2022
英文摘要	Aiming at the outstanding problem of concrete durability in cold and arid regions, the Datonghe-Qingwangchuan Diversion Project in Gansu Province, China, was used as a typical research area, and erosion products were determined by field sampling and laboratory XRD analysis. Three durability evaluation indices, namely, the mass loss rate, relative dynamic elastic modulus (RDEM), and compressive strength loss rate, were measured via indoor accelerated testing. Based on grey relational theory, a concrete durability evaluation model was constructed. The critical failure values of the three evaluation indices were introduced as a set of data to optimize the model and determine the grey relational degree of each group of concrete specimens under different working conditions. The results show that using the test results and the optimized grey relational analysis evaluation model, the concrete specimens mixed with an air-entraining agent have strong resistance to composite erosion. The durability of concrete specimens with an air-entraining agent content of 0.016% and fly ash content of 15% is better, and a high content (30%) of fly ash accelerates the damage of concrete specimens. The model calculations are consistent with the test results. This method can solve the problem of the durability of concrete specimens in the whole test cycle not being fully evaluated. The results of the study provide useful references for concrete mix proportion optimization and durability evaluation problems.
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:000890695700001
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/2XILL650/391545
推荐引用方式 GB/T 7714	Gong, Li,Liang, Ying,Zhang, Bingzong,et al. Durability Evaluation of Concrete in Cold and Arid Regions Based on Grey Relational Theory[J],2022,2022.
APA	Gong, Li,Liang, Ying,Zhang, Bingzong,Gong, Xuelei,&Yang, Yiqun.(2022).Durability Evaluation of Concrete in Cold and Arid Regions Based on Grey Relational Theory.ADVANCES IN CIVIL ENGINEERING,2022.
MLA	Gong, Li,et al."Durability Evaluation of Concrete in Cold and Arid Regions Based on Grey Relational Theory".ADVANCES IN CIVIL ENGINEERING 2022(2022).