Experimental study on coating protection of steel bar in magnesium oxychloride cement concrete in salt lake

doi:10.11817/j.issn.1672-7207.2018.06.029

IR > 土木工程学院

	Experimental study on coating protection of steel bar in magnesium oxychloride cement concrete in salt lake
	Qiao, Hongxia1,2 ; Gong, Wei1 ; Guan, Lijuan 1; Chen, Guangfeng 3; Cheng, Qianyuan 1
	2018-06-26
发表期刊	Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology)
ISSN	16727207
卷号	49 期号:6 页码:1533-1540
摘要	Based on "magnesium pollution" problems in the salt lake of the west, in combination with the practical environment of salt lake area, in the indoor environment, one group that the bare steel in test blocks of the magnesium oxychloride cement concrete was control group was adopted to study protective effect of different coating on steel bar in the magnesium oxychloride cement concrete. By CS350 electrochemical instrument, the electrochemical corrosion of steel bar in magnesium oxychloride cement concrete was systematically studied. Combined with the SEM, status of bare reinforced corrosion in magnesium cement concrete was described. The results show that the corrosion rate of steel bar with DACROMET coating is equal to 1/24-1/16 that of bare steel bar; that of steel bar with BNC coating is equal to 1/35-1/21; that of steel bar with GEOMET coating is equal to 1/318-1/79. The order from high to low about anticorrosion performance of reinforced coating is GEOMET coating, BNC coating, and DACROMET coating; the gap of anticorrosive effects of coating steel bar is very big, but it is obviously advantageous to the anticorrosion of steel bar. © 2018, Central South University Press. All right reserved.
关键词	Bars (metal) Cements Corrosion rate Corrosion resistant coatings Electrochemical corrosion Environmental testing Lakes Magnesium compounds Pollution control Reinforcement Steel corrosion Anti-corrosion of steels Anticorrosion performance Dacromet Indoor environment Magnesium oxychloride cement Protective effects Reinforced coatings Steel bars
DOI	10.11817/j.issn.1672-7207.2018.06.029
收录类别	EI
语种	中文
出版者	Central South University of Technology
EI入藏号	20183505757826
EI主题词	Concretes
EI分类号	412 Concrete - 412.1 Cement - 531.2 Metallography - 535.1.2 Rolling Mill Practice - 539.1 Metals Corrosion - 951 Materials Science
来源库	Compendex
分类代码	412 Concrete - 412.1 Cement - 535.1.2 Rolling Mill Practice - 539.1 Metals Corrosion - 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114840
专题	土木工程学院机电工程学院
作者单位	1.Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining; 810008, China; 3.School of Earth and Space Sciences, Peking University, Beijing; 100871, China
第一作者单位	甘肃省土木工程防灾减灾重点实验室
第一作者的第一单位	甘肃省土木工程防灾减灾重点实验室
推荐引用方式 GB/T 7714	Qiao, Hongxia,Gong, Wei,Guan, Lijuan,et al. Experimental study on coating protection of steel bar in magnesium oxychloride cement concrete in salt lake[J]. Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology),2018,49(6):1533-1540.
APA	Qiao, Hongxia,Gong, Wei,Guan, Lijuan,Chen, Guangfeng,&Cheng, Qianyuan.(2018).Experimental study on coating protection of steel bar in magnesium oxychloride cement concrete in salt lake.Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology),49(6),1533-1540.
MLA	Qiao, Hongxia,et al."Experimental study on coating protection of steel bar in magnesium oxychloride cement concrete in salt lake".Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) 49.6(2018):1533-1540.