Comparison between theoretical value and measured value of cracking time of rust expansion

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Li, Dapeng^1 ; Li, Jinwei^2 ; Shi, Fengjiao^3 ; Qin, Lei^3

Shangdong Linli Architectural Design Co.ltd, China^1

Engineering Quality and Safety Supervision Station of Pingyin Country, Jinan

250000, China^2

School of Architecture and Civil Engineering, University of Jinan, Jinan

250000, China^3

关键词: Correction factors;    Cracking of concrete;    Cumulative impacts;    Durability limit state;    Measured values;    Steel bars;    Theoretical formula;    Theoretical values;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/2/022023/pdf
DOI  :  10.1088/1757-899X/452/2/022023

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The cracks of structures are caused by various reasons. Corrosion cracking of concrete cover caused by steel-bar corrosion is very serious and it is also an important sign of durability limit state of concrete structure. In this paper, by means of acoustic emission, a graph of the cumulative impact change was obtained to determine the cracking time, which was compared with the theoretical formula. In addition, the correction factor k will be discussed.