Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment

doi:10.3390/ma12193069

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	Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment
	Zhang, Liming 2; Li, Jia 3; Qiao, Hongxia 1
刊名	Materials
	2019-10-01
卷号	12 期号:19
关键词	Concrete reinforcements Concretes Copper corrosion Corrosion rate Corrosion resistance Lakes Accelerated corrosion tests Constant current Corrosion of steel Corrosion potentials Different proportions Polarization curves Salt lakes Steel reinforcements
DOI	10.3390/ma12193069
英文摘要	With the increasing proportions of copper tailings of concrete in the Qinghai Salt Lake area of China, there arises the problem of corrosion of steel reinforcement in concrete structures. In this study, we determine the corrosion rate (CR), crack width, and corrosion potential of the steel reinforcement with copper tailing. This was achieved by conducting the constant-current accelerated corrosion test with different proportions of copper tailing in the brine environment of the Qinghai province. The results demonstrate that the corrosion potential (Ecorr) and the passivation area of the polarization curve decrease with the increase in the corrosion time, and the corrosion rate and crack width increase with the increase in the corrosion time. When the corrosion time is the same, the corrosion potential, crack width, and corrosion depth of the reinforcement decrease first and then increase with the increase in the copper tailing powder content. When the copper tailing powder content is 20%, the above parameters reach the minimum value. In the salt lake environment of Qinghai, China, the copper tailing powder content is recommended to be 20%. © 2019 by the authors.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种	英语
出版者	MDPI AG, Postfach, Basel, CH-4005, Switzerland
WOS记录号	WOS:000493308500018
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114286]
专题	图书馆土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China 2.School of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang; 330099, China; 3.Library, Nanchang Institute of Technology, Nanchang; 330099, China;
推荐引用方式 GB/T 7714	Zhang, Liming,Li, Jia,Qiao, Hongxia. Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment[J]. Materials,2019,12(19).
APA	Zhang, Liming,Li, Jia,&Qiao, Hongxia.(2019).Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment.Materials,12(19).
MLA	Zhang, Liming,et al."Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment".Materials 12.19(2019).