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May 27 2019 14:28:34
Testing Quality of Concrete : Insitu Tests Using An Ultrasonic Pulse Velocity Tester(UPV Tester)
Ultrasonic pulse velocity tester or UPV as it is referred is one of the few methods utilised for in situ testing of quality of concrete and strength.As the name suggests, an ultrasonic pulse velocity tester is based on the principle of energized pulses generated and transmitted through a crystal transmitter of an ultrasonic transducer and received by a crystal receiver of an ultrasonic transducer. The frequencies utilized by industry recognized UPV concrete testers such as the Ultracon 170 from MKC Korea are generally commercially utilised low frequencies standardized at 54kHz.The time taken for the signal to be transmitted and received allows analysis of the quality of concrete.
Test Method utilised for Insitu Ultrasonic pulse velocity testing of concrete:
The UPV tester is utilised on a concrete structure greater than 30 cms in width. An ultrasonic couplant (gel/paste) is applied on the ultrasonic transducers to allow a strong ...