bids are invited for visual observation indentify and note the distress damages leakage and take required photographs incl total internal and external data collection of the bldgs , rebound hammer test to know the surface strength of the concrete , ultra pulse velocity test to evaluate the integrity of concrete , carbonation test to identify the depth of carbonation on concrete define the weather effect of concrete , half cell potential test to define the corrosion potential of rcc sections , chemical analysis to find out the ph value of existing concrete members , chemical analysis to identify the chloride content ci of existing concrete members , chemical analysis to identify the sulphate contest so3 ofexisting concrete members , core cutting and compressiontesting including reinforcement mapping, cutting of corefrom existing structural rcc members to find out theequivalent cube compression strength of in-situ concrete , compile ndt report and analysis data collected to ascertainstatus of the structure soundness of the building checkingthe feasibility and stability of the building , suggestions forremedial measures preparation and submission ofappropriate retrofitting repair method and strengtheningscheme total quantity : 348