Following this work and prior to concrete placement the Contractor shall conduct electrical continuity testing to ensure that all reinforcement of each quay structure are electrically continuous. The testing can be conducted using a high quality Digital Volt Meter (DVM) in resistance mode with care being taken to ensure that that surface of the steel is clean of mill scale, flash rust, oil, grease, etc. so that the measurements are a true indication of the continuity. Where continuity is deemed insufficient, a resistance reading of greater than 2 ohms from either polarity, then additional tack welding and, where necessary the inclusion of lengths of 10mm diameter steel bars welding to rebar shall be incorporated to provide the necessary electrical continuity. |