An Investigation Into Methods of Nondestructive Evaluation of Masonry Structures

摘要

Six nondestructive evaluation (NDE) test methods were investigated to assess their potential for strength and condition evaluation of masonry using unmodified commercially available equipment. The methods were: vibration, rebound hammer, penetration, ultrasonic pulse velocity, mechanical pulse velocity, and acoustic-mechanical pulse. These methods were applied to two-wythe cantilever wall specimens. Companion small-scale specimens, specimens removed from the walls subsequent to the NDE test, and in-the-wall specimens were tested to destruction to provide compression, shear, and flexural strength data for correlation studies.