Life prediction of coated steel with individual difference in magnesium oxychloride cement concrete

doi:10.3785/j.issn.1008-973X.2019.12.007

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Life prediction of coated steel with individual difference in magnesium oxychloride cement concrete
	Wang, Peng-Hui 2; Qiao, Hong-Xia 1,2; Feng, Qiong 2; Cao, Hui 2
刊名	Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science)
	2019-12-01
卷号	53 期号:12 页码:2309-2316
关键词	Bars (metal) Concrete industry Durability Exponential functions Forecasting Magnesium compounds Reinforced concrete Steel testing Accelerated corrosion tests Coated steel Corrosion current densities Corrosion tests Individual Differences Magnesium oxychloride Magnesium oxychloride cement Manufacturing errors
ISSN号	1008973X
DOI	10.3785/j.issn.1008-973X.2019.12.007
英文摘要	The manufacturing error of coated steel bars in magnesium oxychloride coated reinforced concrete (MOCRC) leads to some differences in the life prediction of coated steel bars in different MOCRCs. The solution immersion accelerated corrosion test with full consideration of individual differences was proposed, and the life prediction of coated steel bars was based on Wiener degeneration process. Judge whether the corrosion current density of the coated steel bar complied with the Wiener degradation process. The drift coefficient was introduced for modeling under the individual differences of the coated steel bars. Coated steel bars' life predictions between considering individual differences and no individual differences were compared. Results show that the degradation model of coated steel bar under accelerated corrosion test in fixed concentration solution obeys one number term of exponential function. Under the Wiener degradation process, the coated steel bars with individual differences are severely corroded around 25 000 d, while the coated steel bars without individual differences are severely corroded around 30 000 d. © 2019, Zhejiang University Press. All right reserved.
语种	中文
出版者	Zhejiang University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114258]
专题	土木工程学院
作者单位	1.Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining; 810083, China 2.Key laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Wang, Peng-Hui,Qiao, Hong-Xia,Feng, Qiong,et al. Life prediction of coated steel with individual difference in magnesium oxychloride cement concrete[J]. Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science),2019,53(12):2309-2316.
APA	Wang, Peng-Hui,Qiao, Hong-Xia,Feng, Qiong,&Cao, Hui.(2019).Life prediction of coated steel with individual difference in magnesium oxychloride cement concrete.Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science),53(12),2309-2316.
MLA	Wang, Peng-Hui,et al."Life prediction of coated steel with individual difference in magnesium oxychloride cement concrete".Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) 53.12(2019):2309-2316.