Abstract
Some research on the Ultrasonic Pulse Velocity (UPV) test has not covered much about the problems encountered during the data collection process. Based on experience using UPV test equipment, it is known that instability occurs in reading the test results. This is caused by the inability of the operator, in maintaining the stability of the transducer both in its position and pressure, especially in the measurement with the overhead position. Therefore, in this study a tool was made to make the transducer stable in the test position. Comparison of measurement results shows that, the uncertainty of wave velocity measurement decreases from the range of 4% -17% to 0.2% -0.4%. Meanwhile, the uncertainty of measurement of wave travel time decreased from the range of 0.8% -14% to 0.1% -0.4%. This can be interpreted that, the level of accuracy of measurements using a transducer stabilizer is 99.6% -99.9%. Thus, the use of transducer stabilizers is believed to be able to improve measurement accuracy.
Highlights
There are 2 types of testing methods used to evaluate the characteristics of a material, namely destructive test and non-destructive test
Destructive testing gives more factual results, but if carried out on a building it will be feared to affect the strength of its structure
Non-destructive testing (NDT) is an examination, test, or evaluation performed on any type of test object without changing or altering that object in any way, in order to determine the absence or presence of conditions or discontinuities that may have an effect on the usefulness or serviceability of that object (Hellier, 2003)
Summary
There are 2 types of testing methods used to evaluate the characteristics of a material, namely destructive test and non-destructive test. Ultrasonic Pulse Velocity (UPV) test as a testing of nondestructive methods, has been widely used to evaluate concrete quality. The ultrasonic pulse velocity (UPV) method is based on measurement of the travel time of an ultrasonic wave through concrete over a known path length.
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