Fracture Behavior Analysis of Magnesium Oxychloride Cement Reinforced Concrete under Electric Corrosion

doi:10.3969/j.issn.1007-9629.2020.03.011

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	Fracture Behavior Analysis of Magnesium Oxychloride Cement Reinforced Concrete under Electric Corrosion
	Chen, Kefan 1; Qiao, Hongxia 1,2; Wang, Penghui 1; Peng, Kuan 1; Zhu, Xiangchen 1
刊名	Jianzhu Cailiao Xuebao/Journal of Building Materials
	2020-06-01
卷号	23 期号:3 页码:557-562
关键词	Cements Concrete construction Corrosion Crack propagation Crack tips Magnesium compounds Plates (structural components) Stress intensity factors Concrete cracking Electric corrosions Fracture behavior Fracture criteria Interfacial cracks Magnesium oxychloride cement Weight function method Weight functions
ISSN号	10079629
DOI	10.3969/j.issn.1007-9629.2020.03.011
英文摘要	In order to obtain the critical rust expansion force of magnesium oxychloride cement reinforced concrete during cracking, the fracture behavior of magnesium oxychloride cement reinforced concrete under electric corrosion was studied based on fracture mechanics. According to Glinka-Shen weight function method, the weight function of square plate with single crack at hole edge was obtained by using the known stress intensity factor at crack tip under reference load. Then the formula of stress intensity factor at crack tip of square plate with single crack at hole edge was deduced. Finally, according to the fracture criterion of concrete, the formulas for calculating the critical rust expansion force of concrete cracking under electric corrosion and its variation law were given. The results show that with the increase of interfacial crack length, the stress intensity factor at crack tip increases while the critical rust expansion force decreases. The stress intensity factor at crack tip decreases with the increase of the diameter of reinforcing bar. © 2020, Editorial Department of Journal of Building Materials. All right reserved.
语种	中文
出版者	Tongji University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115395]
专题	土木工程学院
作者单位	1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Chen, Kefan,Qiao, Hongxia,Wang, Penghui,et al. Fracture Behavior Analysis of Magnesium Oxychloride Cement Reinforced Concrete under Electric Corrosion[J]. Jianzhu Cailiao Xuebao/Journal of Building Materials,2020,23(3):557-562.
APA	Chen, Kefan,Qiao, Hongxia,Wang, Penghui,Peng, Kuan,&Zhu, Xiangchen.(2020).Fracture Behavior Analysis of Magnesium Oxychloride Cement Reinforced Concrete under Electric Corrosion.Jianzhu Cailiao Xuebao/Journal of Building Materials,23(3),557-562.
MLA	Chen, Kefan,et al."Fracture Behavior Analysis of Magnesium Oxychloride Cement Reinforced Concrete under Electric Corrosion".Jianzhu Cailiao Xuebao/Journal of Building Materials 23.3(2020):557-562.