N. Mohamed Sutan
Faculty of Engineering, University Malaysia Sarawak,94300 Kota Samarahan, Sarawak
M.S. Jaafar
Faculty of Engineering, University Putra Malaysia,43400 Serdang, Selangor, Malaysia
ABSTRACT
An experimental study been made in evaluating the accuracy of Ultrasonic Pulse Velocity Method in detecting distress in reinforced concrete has been made. Tests were undertaken to evaluate the viability of using Ultrasonic Pulse Velocity Method (UPVM) in detecting distress and determining its depth during the early age concrete. Five Reinforced Concrete (RC) slabs of grade 25, 30, 40 and 50 specimens at day 3, 7, 14 and 28 with fabricated distress namely void at a known location were used. The results obtained were then compared with the known location and between concrete ages to determine the accuracy of the method hence the effectiveness of this method. UPVM detects distress in specimens during the early age. The test results indicate that the method can be used to assess the in-situ properties of concrete or for quality control on site as for the detection of the presence of distress but not for accurate of depth of distress particularly right after the removal of formwork. The result showed better accuracy with stronger concrete in the detection of depth of distress with the accuracy ranging from 51.81-99.62% from day 3-28 (full strength) respectively.
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How to cite this article
N. Mohamed Sutan and M.S. Jaafar, 2002. The Accuracy of Ultrasonic Pulse Velocity Method in the Detection of Distress for Reinforced Concrete Structure. Information Technology Journal, 1: 233-237.
DOI: 10.3923/itj.2002.233.237
URL: https://scialert.net/abstract/?doi=itj.2002.233.237
DOI: 10.3923/itj.2002.233.237
URL: https://scialert.net/abstract/?doi=itj.2002.233.237
REFERENCES
- Bungey, J.H., 1980. The validity of ultrasonic pulse velocity testing of in-place concrete for strength. NDT Int., 13: 296-300.
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