Testing through the ultrasonic waves is one of the most important non-destructive methods for evaluating the compressive strength of the concrete. The result of this test is based on the velocity of ultrasonic waves through the concrete.This study examines the effect of moisture on the velocity of ultrasonic waves and compressive strength of concrete. The ultrasound equipment used in this study shows that non-destructive ultrasonic waves generated by portable devices Pundit with a range of 500 V and waves 54 KHz. The required time for signal transmission among the transducers was calculated as a parameter for evaluating the signal speed.The results of the analysis show that moisture has the significant effect on the velocity of ultrasonic waves and compressive strength of concrete. By placing the concrete samples in water and raising the content of moisture, the speed of ultrasonic waves is enhanced but the compressive strength of samples is reduced. With high moisture content, the velocity of ultrasonic waves and compressive strength are found to be inversely related.
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Published by: National Cave Research and Protection Organization, India
<Environmental Science+Zoology+Geology+Cave Science>AMBIENT SCIENCE