Record number :
Title of article :
NDT approach for characterization of subsurface cracks in concrete
Author/Authors :
Aggelis، نويسنده , , D.G. and Kordatos، نويسنده , , E.Z. and Strantza، نويسنده , , M. and Soulioti، نويسنده , , D.V. and Matikas، نويسنده , , T.E.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Pages :
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Abstract :
A combination of nondestructive testing techniques is applied in this paper for the detection and characterization of subsurface damage in concrete. Thermography is initially used to locate the defects, in the form of vertical cracks beneath the surface, due to the variation of the temperature field as monitored by an infrared camera. Additionally, cooling down curves enhance the characterization by the different rate of heat exchange between cracked and sound areas. Consequently ultrasound propagation is used to estimate the depth, by the firm correlation between wave transmission and damage characteristics. The complementary use of the two techniques is discussed as a potential robust methodology for evaluation of difficult damage in concrete before it is visible.
Keywords :
SIMULATION , Nondestructive Testing , thermography , Cooling down , Longitudinal wave , Ultrasound , Rayleigh wave
Journal title :
Construction and Building Materials
Serial Year :
Link To Document :