Non-destructive Test・Diagnosis (Damage/Defect)Ⅲ

[1246] EVALUATION OF CONCRETE CRACK MONITORING WITH MECHANOCROMIC SENSOR

Sujeong PYEON¹, Gyuyong KIM¹, Hamin EU¹, Jeongsoo NAM¹ (1.Chungnam National Univ.)

Keywords:mechanochromic sensor、strain、deformation、discoloration、concrete、crack

In this study, an experimental study was conducted on the development of crack monitoring technology for concrete materials with mechanochromic sensors attached. A method of analyzing the sensor color change image by photographing the color change image of the sensor according to the crack induction and progress of the concrete specimen was proposed. Equations are proposed to derive the crack width from the relationship between the analysis result and the crack width. Through this, the possibility of using a mechanochromic sensor for monitoring cracks in concrete materials was confirmed.