A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ultrasonic testing of concrete structures using indirect transmission
Laboratory studies and computer simulation were used to develop a procedure for the interpretation of the results of nondestructive testing of concrete structures using the indirect transmission method. The results of the laboratory studies indicate a 10-cm spacing is best for making ultrasonic pulse measurements. A new method of calculating the velocity of the pulse is presented. The method enables concrete quality to be evaluated over short distances rather than the existing method which gives a mean velocity over an extended distance. The method can thus determine the extent of delamination of concrete at a specific location. The laboratory analyses verified using computer simulations show the effect of concrete heterogeneity on the detection of variation in concrete quality. Ultrasonic pulse velocities have a coefficient of variation of about 2 %.
Ultrasonic testing of concrete structures using indirect transmission
Laboratory studies and computer simulation were used to develop a procedure for the interpretation of the results of nondestructive testing of concrete structures using the indirect transmission method. The results of the laboratory studies indicate a 10-cm spacing is best for making ultrasonic pulse measurements. A new method of calculating the velocity of the pulse is presented. The method enables concrete quality to be evaluated over short distances rather than the existing method which gives a mean velocity over an extended distance. The method can thus determine the extent of delamination of concrete at a specific location. The laboratory analyses verified using computer simulations show the effect of concrete heterogeneity on the detection of variation in concrete quality. Ultrasonic pulse velocities have a coefficient of variation of about 2 %.
Ultrasonic testing of concrete structures using indirect transmission
Ultraschallprüfung von Betonstrukturen durch indirekte Transmission
Stergiopoulou, Christina (author) / McCuen, Richard H. (author) / Aggour, Sherif (author)
Journal of Testing and Evaluation ; 36 ; 128-135
2008
8 Seiten, 7 Bilder, 4 Tabellen, 13 Quellen
Article (Journal)
English
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