Friday, June 23, 2017

Method Statement for Ultrasonic Pulse Velocity (UPV)

Work Methodology

Construction Procedure
  1. Identify and mark test location.
  2. Measure path length of test location.
  3. Apply grease onto the concrete surface using scraper.
  4. Calibrate the Pundit tester with calibration rod to 20.8 ┬Ás.
  5. Start UPV test with putting transmitter onto the greased concrete surface and receiver onto the opposite side.
  6. Record the transit time as displayed at the LCD of Pundit tester.
  7. Repeat step 4 three (3) times to get another three (3) reading.
  8. Pulse velocity was calculated by path length divided by average transit time thru the structure.
  9. Contour graph shall be plotted using pulse velocity at each location on gridline.
  10. Result analysis based on guideline from “Non-destructive Testing of Concrete” by Singapore Concrete Institute, 1995.

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