Detection of Reinforced Concrete Crack Using Mechano-Luminescence Paint
As a nonuniform and unisotropic material with a relatively low tensile strength in spite of high compression strength, a concrete material is vulnerable to bending and tension.Due to the mechanical properties of the current reinforced concrete structures, it is hard for concrete materials to avoid the damages caused by cracks.Although cracks are the easiest things to detect and the most effectively repairable things due to their characteristics, it is very hard to measure them efficiently.In this research, the author measured cracks by visualizing them through mechano-luminescence(ML) paint.By applying ML paint on the surface of the specimen and using the 3-point bending test, the author conducted a quantitative evaluation on the mechanical properties of cracks such as the cracking aspect and length of reinforced concrete.Through the results of this research, the author confirmed the crack propagation speed by section and the mechanical correlation such as between loads and cracks and between deflection and cracks, which means this research was quite successful in analyzing the characteristics of cracks.
Mechano-Luminescence(ML) paint concrete cracking crack propagation bending test
Il-Young Jang Seong-Kyum Kim Ji-Sik Kim Ki-Yong Ann Chang-Geun Cho
Dep.of Civil and Environmental Eng., Kumoh National Institute of Technology, Gumi, S.Korea School of Nano and Adv.Mat.Eng., Kyungpook National Univ., Daegu, S.Korea Dep.of Civil and Environmental Eng., Hanyang Univ.ERICA CAMPUS, Ansan, S.Korea School of Architecture, Chosun Univ., Gwangju, S.Korea
国际会议
杭州
英文
1049-1054
2013-01-18（万方平台首次上网日期，不代表论文的发表时间）