Reliability evaluation of recycled concrete dry-wet cycle based on NMR

doi:10.13245/j.hust.200715

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	Reliability evaluation of recycled concrete dry-wet cycle based on NMR
	Chen, Kefan 1; Qiao, Hongxia 1,2; Wang, Penghui 1; Peng, Kuan 1
刊名	Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition)
	2020-07-23
卷号	48 期号:7 页码:88-92
关键词	Concrete aggregates Environmental regulations Nuclear magnetic resonance Porosity Reliability Weibull distribution Degradation parameter Dry-wet circulation Interconnected pores Nuclear magnetic resonance(NMR) Pore development Recycled concretes Reliability Evaluation Reliability functions
ISSN号	16714512
DOI	10.13245/j.hust.200715
英文摘要	To get the damage law of recycled concrete and reliability under dry-wet cycle environment, the recycled concrete dry-wet cycling test was designed, and T2 spectrum under different dry-wet cycles and porosity were acquired using nuclear magnetic resonance (NMR) technology.The pore development under the dry-wet cycling test and the change of porosity were analyzed, the damage law of recycled concrete was obtained under the dry-wet circulation environment.Regarding recycled concrete porosity as the damage variable and degradation parameter, the reliability function of the recycled concrete dry-wet cycle was established using the Weibull distribution function.Research results show that with the increase of dry-wet cycles, interconnected pores in recycled concrete would develop for larger pores, while the recycled concrete porosity increases constantly, and the cycle number of the recycled concrete dry-wet cycles with reliability of 80% is 119 times. © 2020, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.
语种	中文
出版者	Huazhong University of Science and Technology
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150817]
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.Western Center of Disater Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Chen, Kefan,Qiao, Hongxia,Wang, Penghui,et al. Reliability evaluation of recycled concrete dry-wet cycle based on NMR[J]. Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition),2020,48(7):88-92.
APA	Chen, Kefan,Qiao, Hongxia,Wang, Penghui,&Peng, Kuan.(2020).Reliability evaluation of recycled concrete dry-wet cycle based on NMR.Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition),48(7),88-92.
MLA	Chen, Kefan,et al."Reliability evaluation of recycled concrete dry-wet cycle based on NMR".Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) 48.7(2020):88-92.