Conditional Assessment of a Jetty In Mumbai Harbor

this paper describes the rehabilitation on of jetty in Mumbai harbour. The structure was constructed in early 1990’s and there were no as such drawings of jetty structure available. The jetty was in a deteriorated state and as a apart of audit inspection a very thorough investigation was carried out to determine the state of deterioration and to developed a design for rehabilitation thereof. From the investigations it was found that the concrete used for jetty was of high quality and the cover depths to most areas exceeded 50 mm. however some parts of structure suffer severe chloride contamination, corrosion to reinforcement, spalling of concrete etc. over years the repairs provided have been deteriorated and are now unworthy to offer any protection to structure. The methods proposed are to be employed to rehabilitate jetty patch repair, recasting of the structural areas, replacement of reinforcement etc.