Nondestructive Testing of the Corrosive Damage of Reinforced Concrete Structures Using Ultrasonic Method

Authors

Ming-Te Liang, Associate Professor, Department of Harbor and River Engineering, National Taiwan Ocean Universitry, Keelung, Taiwan, R.O.C.
Run Huang, Associate Professor, Department of Harbor and River Engineering, National Taiwan Ocean Universitry, Keelung, Taiwan, R.O.C.
Chii-Ming Jiang, Graduate Snudent, Deparment of Harbor and River Engineering, National Taiwan Ocean University, Keelung, Taiwan, R.O.C.

Abstract

The purpose of this study is to determine the corrosive damage of reinforced concrete members using the ultrasonic technique. The ultrasonic tester (type ULCON 3) connected the touched vertical-beam dictator (frequency: 50kHz, diameter=20mm) is used to measure the velocity and scan the concrete surface for predicting the corrosive damage, When the rebars are corroded, the ultrasonic wave propagation will very due to energy decay and velocity change. Based on the ultrasonic pulse velocity and amplitude, the structural quality of reinforced concrete can be predicted. Some results obtained from this investigation are described as follows: (1) 'The amplitude of refective wave reduces if steel corrosion occurs in the RC structures, (2) Both the ultrasonic pulse velocity and amplitude can be used to evaluate the steel corrosion in the RC structures, (3) If in-site technique is developed, the life-cycle ofthe RC structures may be justified.

Recommended Citation

Liang, Ming-Te; Huang, Run; and Jiang, Chii-Ming (1996) "Nondestructive Testing of the Corrosive Damage of Reinforced Concrete Structures Using Ultrasonic Method," Journal of Marine Science and Technology: Vol. 4: Iss. 1, Article 14.
DOI: 10.51400/2709-6998.2547
Available at: https://jmstt.ntou.edu.tw/journal/vol4/iss1/14