The reinforced concrete (RC) members of various MC structures such as jetty pile caps, column and beam-column junctions of the over head water tank and Diesel Generator (DG) main building of a 20MW power plant located at Port Balir, Andaman, were severely affected due to the recent earthquake and subsequent tsunami. Seawater had entered into the power plant to a height of 1.20 m and receded after a few minutes. The damaged structures have been rehabilitated with epoxy jointing and wrapping with Fibre Reinforced Plastic (FEP) laminates followed by epoxy grouting. The condition assessment of rehabilitated structures including Diesel Generator (DG) foundations are studied using ultrasonic testing and core sampling and, subsequent testing. The data obtained by these tests indicate that the integrity of concrete in DG foundations, beam-column junctions of over head water tank and DG main building and jetty pile caps was good, which shows the efficiency of epoxy injection and wrapping with FRP laminates with grouting at the joints. This paper describes the details of the rehabilitation work carried out on the damaged structures and also the condition assessment of the same using non destructive test techniques. The test results, evaluation, interpretation and recommendations are also presented in this paper.
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